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Packaged by Turner BMW Cooling System Parts & Accessories

The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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Packaged by Turner - Corporate Logo
T#:557319
Part#: E36PCKT
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If you plan to drive your BMW aggressively on the track, it is important that you upgrade your cooling system to avoid overheating. To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative! This kit includes a high performance ECS Tuning Aluminum Radiator, for significantly better cooling than the stock radiator and full aluminum construction that won't crack from long term heat cycling, a performance Mishimoto 68*C thermostat, for lower temperature operation and increased cooling of the engine, and a Stewart High Performance Water Pump, for dramatically increased coolant flow at all RPMs. 

Additional items included in this kit:

  • ECS Tuning Silicone Coolant Hoses - For increased reliability over the stock rubber hoses
  • ECS Tuning Heavy Duty Aluminum Coolant Bleeder Screw
  • OEM Expansion Tank, Cap, and Level Sensor
  • OEM Belts, Tensioners, and Pulleys
  • OEM Low Temperature Auxiliary Fan Switch
  • Genuine BMW Hardware for Easy Installation
  • ECS Tuning Aluminum Water Pump Pulley - For increased coolant flow and reliability over the stock composite pulley
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Turner Comprehensive Fan Delete Kit - E36 (up to 09/1995)
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554691
Part#: FD2PRE95KT
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This product was last offered at the strikethrough price on
07-02-2026

$ 105.52 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This Comprehensive kit is the mid-priced option, including the essentials and an upgraded aluminum thermostat housing that won't crack or break like the brittle plastic housing. 

This kit is best for someone who wants to upgrade their thermostat housing to aluminum, has already upgraded their water pump pulley, and has performed regular maintenance on their engine drive belts.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • Aluminum thermostat housing with gaskets
  • Fan delete nut

Fits the following BMWs:
1992-09/1995 E36 BMW 325i/is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Turner Comprehensive Fan Delete Kit - E36 (09/1995+)
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554694
Part#: FD2AFT95KT
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$ 127.83 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This Comprehensive kit is the mid-priced option, including the essentials and an upgraded aluminum thermostat housing that won't crack or break like the brittle plastic housing. 

This kit is best for someone who wants to upgrade their thermostat housing to aluminum, has already upgraded their water pump pulley, and has performed regular maintenance on their engine drive belts.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • Aluminum thermostat housing with gaskets
  • Fan delete nut

Fits the following BMWs:
09/1995-1999 E36 BMW 323is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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E36 Performance Cooling Kit - Lite
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554672
Part#: E366CYLLITETMSKT
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This product was last offered at the strikethrough price on
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$ 164.79 USD
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Looking to improve your cooling system's performance and add some peace of mind at the same time? Look no further. This kit includes everything you need to add performance, durability and longevity to your cooling system without spending a ton of money. Best of all, the upgrade can be performed by a reasonably competent DIY enthusiast in an afternoon. The team at ECS Tuning supplies their excellent silicone radiator hoses, stainless hose clamps, and aluminum coolant bleed screw for increased durability and heat resistance. Meanwhile, a lower pressure expansion tank cap makes for a less costly "weak link" if the system builds too much pressure, potentially saving you from a costly radiator replacement that could leave you stranded. The kit also includes a gallon of Genuine BMW coolant along with 12 ounces of Red Line Water Wetter, which lowers operating temperatures and protects your cooling system from internal corrosion. All you need is this kit, a few hours of free time, and a gallon of distilled water to keep your E36 cool & running at its best!

Kit Contents:

- ECS Tuning Silicone Radiator Hoses

- ECS Tuning Stainless Steel Hose Clamps

- ECS Tuning Heavy Duty Aluminum Coolant Bleeder Screw

- 1.4 Bar Expansion Tank Cap

- Red Line Water Wetter - 12oz

- Genuine BMW Coolant - 1 Gallon

 

Fits the Following BMWs:

E36 323i 325i 328i M3

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Turner Basic Fan Delete Kit - E36 (09/1995+)
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554693
Part#: FD1AFT95KT
Ships in 1-2 days
$ 104.26

This product was last offered at the strikethrough price on
07-02-2026

$ 89.77 USD
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$ 89.77 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This basic kit is the cheapest option, including just the bare essentials to get the job done and get your car running without a fan.

This kit is best for someone who has already upgraded their thermostat housing and/or water pump pulley and has performed regular maintenance on their engine drive belts.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch

Fits the following BMWs:
09/1995-1999 E36 BMW 323is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Turner Basic Fan Delete Kit - E36 (up to 09/1995)
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554690
Part#: FD1PRE95KT
In Stock
Sale - Save 20% $ 80.99

This product was last offered at the strikethrough price on
07-02-2026

$ 64.77 USD
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$ 80.99

This product was last offered at the strikethrough price on
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$ 64.77 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This basic kit is the cheapest option, including just the bare essentials to get the job done and get your car running without a fan.

This kit is best for someone who has already upgraded their thermostat housing and/or water pump pulley and has performed regular maintenance on their engine drive belts.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch

Fits the following BMWs:
1992-09/1995 E36 BMW 325i/is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Packaged by Turner - Corporate Logo
T#:557220
Part#: E6XN52BCKT
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Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

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Turner Ultimate Fan Delete Kit - E36 (09/1995+)
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554696
Part#: FD3AFT95KT
Ships in 2 Business Days
Sale - Save 4% $ 271.22

This product was last offered at the strikethrough price on
07-02-2026

$ 259.61 USD
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Sale - Save 4%
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This product was last offered at the strikethrough price on
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$ 259.61 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This Ultimate kit is the top tier option, including the essential conversion components, the upgraded aluminum thermostat housing, and a brand new accessory belt.

This kit is best for someone who has not performed recent cooling system maintenance or who wants to replace everything at once for increased reliability and longevity.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • Aluminum thermostat housing with gaskets
  • Fan delete nut
  • ECS  Aluminum Water Pump Pulley - Black
  • Accessory Belt

Fits the following BMWs:
09/1995-1999 E36 BMW 323is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Turner Ultimate Fan Delete Kit - E36 (up to 09/1995)
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554692
Part#: FD3PRE95KT
Ships in 2 Business Days
Sale - Save 5% $ 250.99

This product was last offered at the strikethrough price on
07-02-2026

$ 237.30 USD
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Sale - Save 5%
$ 250.99

This product was last offered at the strikethrough price on
07-02-2026

$ 237.30 USD
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The fan that attaches to the water pump carries so much rotational mass that it can actually hinder the performance of your engine. To address this, we now offer out line of fan delete kits that replace everything needed to get rid of your fan and fan clutch, without causing cooling issues as a result. This Ultimate kit is the top tier option, including the essential conversion components, the upgraded aluminum thermostat housing, and a brand new accessory belt.

This kit is best for someone who has not performed recent cooling system maintenance or who wants to replace everything at once for increased reliability and longevity.

Included in this kit:

  • 80* thermostat
  • 1 liter of coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • Aluminum thermostat housing with gaskets
  • Fan delete nut
  • ECS  Aluminum Water Pump Pulley - Black
  • Accessory Belt

Fits the following BMWs:
1992-09/1995 E36 BMW 325i/is/ic 328i/is/ic M3

**This kit is intended to be used with cars that have a functional auxiliary fan (64508364093) or an upgraded electrical fan installed.**

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Thermostat Replacement Kit - E28, E30, E34 M20B25/27
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:41289770
Part#: 11531730470TKT
Ships in 3 Business Days
Sale - Save 22% $ 93.99

This product was last offered at the strikethrough price on
06-08-2026

$ 73.38 USD
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Sale - Save 22%
$ 93.99

This product was last offered at the strikethrough price on
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$ 73.38 USD
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This BMW Thermostat Replacement Kit is the go-to choice for preserving the performance and reliability of your classic M20-powered BMW—keeping your engine running cool and smooth mile after mile.
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Packaged by Turner - Corporate Logo
T#:557223
Part#: E30M20BCKT
Ships in 2 Business Days
$ 433.99

This product was last offered at the strikethrough price on
04-21-2026

$ 414.99 USD
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$ 414.99 USD
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Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

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Cooling System overhaul Kit - E30 325i/is/ix/e From 1988
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554135
Part#: 11531722218KT3
Back Ordered
Sale - Save 2% $ 673.99

This product was last offered at the strikethrough price on
06-29-2026

$ 658.39 USD
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$ 658.39 USD

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E30 325 with the M20 engine. 

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

This water pump fits the following BMWs: 
1998-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix 

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Basic Cooling System Service Kit - E53 X5 M54 3.0L
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:557190
Part#: E53X5M54BCKT
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Sale - Save 1% $ 394.99

This product was last offered at the strikethrough price on
05-03-2026

$ 392.29 USD
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$ 394.99

This product was last offered at the strikethrough price on
05-03-2026

$ 392.29 USD
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Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

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Packaged by Turner - Corporate Logo
T#:557295
Part#: E46NONMPCKT
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Sale - Save 3% $ 1,406.99

This product was last offered at the strikethrough price on
05-29-2026

$ 1,360.02 USD
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If you plan to drive your BMW aggressively on the track, it is important that you upgrade your cooling system to avoid overheating. To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative! This kit includes a high performance Mishimoto Radiator, for significantly better cooling than the stock radiator and full aluminum construction that won't crack from long term heat cycling, a performance Mishimoto 70*C thermostat, for lower temperature operation and increased cooling of the engine, and a Stewart High Performance Water Pump, for dramatically increased coolant flow at all RPMs.
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Packaged by Turner - Corporate Logo
T#:25772575
Part#: E36PCKT1
Back Ordered
$ 922.99

This product was last offered at the strikethrough price on
07-06-2026

$ 921.11 USD
$ 921.11 USD

Water Pump - E30 M3
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:337980
Part#: 11511315211
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Starting at $ 299.99 USD
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Starting at $ 299.99 USD
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This is the stock replacement water pump for the E30 M3. This is the Genuine BMW pump and includes a new OE BMW gasket. It's always a good idea to have one as a spare. Even if it sits on your shelf for awhile it's going to be used at some point (and prices for Genuine E30 M3 parts aren't getting any lower). Aftermarket pumps have been in short supply and the quality hasn't been as good as the Original BMW pump so we have decided to stop offering aftermarket brands like Laso or Saleri. This is the Genuine BMW part, straight from BMW.

This item fits the following BMWs:
1987-1991 E30 BMW M3
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Stock Replacement Radiator - E30 M3
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:338019
Part#: 17112225592
Back Ordered
$ 347.99

This product was last offered at the strikethrough price on
08-13-2026

Starting at $ 258.99 USD
Starting at $ 258.99 USD
This is a new stock E30 M3 Radiator. We offer both Genuine BMW or Nissens brand radaitors. The Genuine BMW radiator is the highest quality radiator available. The Nissens is a high quality aftermarket radatior.

This item fits the following BMWs:
1988-1991 E30 BMW M3
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Expansion Tank Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15744017
Part#: N524ECSTNKKT-KT
In Stock
Sale - Save 40% $ 166.99

This product was last offered at the strikethrough price on
04-03-2026

$ 100.95 USD
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Sale - Save 40%
$ 166.99

This product was last offered at the strikethrough price on
04-03-2026

$ 100.95 USD
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The coolant expansion tank in your vehicle gives additional fluid a place to go after expansion and contraction from temperature change. Because it is subjected to such drastic changes on a regular basis, it can often crack or break. You want to keep all the coolant in your vehicle in the cooling system. If your tank has experienced damage such as cracking, nipples breaking off, or mounting point damage, you will need to replace it. The kit includes: Expansion tank with level sensor URO expansion tank cap Genuine BMW expansion tank grommet Genuine BMW mounting bolts
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Value Coolant Hose Kit - F3x - N55
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:56507827
Part#: F3XN55CSRL0KT2
In Stock
New Item
$ 90.90 USD
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Our Value Cooling Maintenance Kit addresses the three most notorious failure points in one shot before you end up stranded on the side of the road or worse, overheating your engine
Packaged by Turner - Corporate Logo
T#:42873693
Part#: TMS206099GKT
In Stock
$ 729.35 USD
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Our water pump/thermostat overhaul includes:

  • Electric Water Pump
  • Aluminum mounting screws for water pump
  • Thermostat
  • Connecting hose from thermostat to water pump 
  • Hose clamps

 

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ECS Cooling System Refresh Kit - Level 2
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15677514
Part#: 11281706545-KT
In Stock
Sale - Save 3% $ 474.99

This product was last offered at the strikethrough price on
05-03-2026

$ 460.24 USD
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Sale - Save 3%
$ 474.99

This product was last offered at the strikethrough price on
05-03-2026

$ 460.24 USD
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Stop the problems before they arise. If your BMW has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. Avoid water pump failure, cracked thermostat housings, and expansion tank leaks, which all lead to overheating and subsequent damage. This kit was put together by Turner for a complete cooling system service. GEBA water pump with metal impeller ECS aluminum water pump pulley Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses Accessory drive belts Radiator drain plug
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Packaged by Turner - Corporate Logo
T#:554552
Part#: 17119071519KT5
Back Ordered
Sale - Save 4% $ 979.99

This product was last offered at the strikethrough price on
08-17-2026

$ 944.54 USD
Sale - Save 4%
$ 979.99

This product was last offered at the strikethrough price on
08-17-2026

$ 944.54 USD

This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E46 with the M52/54 engine.  

A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

This cooling system overhaul kit fits the following BMWs: 
1999-2000 E46 3 Series Sedan/Wagon - 323i & 328i 
1999-2000 E46 3 Series Coupe/Convertible - 323Ci & 328Ci 
2001-2002 E46 3 Series Sedan/Wagon - 325i, 325xi, 330i, 330xi 
2001-2002 E46 3 Series Coupe/Convertible - 325Ci, 330Ci 

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Water Pump And Thermostat Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15511872
Part#: 821414677040KT
In Stock
Sale - Save 1% $ 475.99

This product was last offered at the strikethrough price on
05-30-2026

$ 469.45 USD
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Sale - Save 1%
$ 475.99

This product was last offered at the strikethrough price on
05-30-2026

$ 469.45 USD
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The water pumps in these BMW models are known for failure near 80,000 miles is a very common issue often times leaving the owner stranded. The aftermarket kit offered provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road. Kit includes: Mahle-Behr thermostat Water pump Genuine BMW coolant Mounting hardware required for both the thermostat and water pump
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Packaged by Turner - Corporate Logo
T#:340253
Part#: TMS215325
In Stock
Sale - Save 7% $ 1,280.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 1,194.54 USD
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Sale - Save 7%
$ 1,280.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 1,194.54 USD
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This cooling overhaul will cover just about everything you could replace on the 328 SULEV's cooling system. We start with the basic water pump and thermostat bundle. These are already vital to the health and durability of the N51 328i SULEV. But to properly maintain these cars for the long term, the rest of the cooling system must be refreshed and preventatively replaced. Here you can add a radiator, expansion tank, all of the 328 SULEV cooling hoses, and the BMW antifreeze. This package fits 128i/328i SULEV with N51 engine and automatic transmission. Some of the components are different for the automatic models because of the auto transmission oil cooler.

The sophisticated electronics of the ECU and water pump means catastrophic overheating should be a thing of the past. But the downside is that the electronics can shut down without any warning or symptoms. And troubleshooting is equally frustrating since the water pump electronics are not readable or serviceable. There are several clues to a faulty thermostat or water pump - the fan runs at full speed all the time (even immediately on a cold start), pending (soft) fault code for low coolant flow, or the water pump can be heard running constantly. But when the pump fails it's an immediate shut down of the engine which can be a major inconvenience and lead to additional repairs that might have been avoided with preventative maintance. We recommend a full cooling system overhaul on the E90/E92 every 80-90,000 miles and to check for soft/pending codes at every 5,000 mile service .


Base Cooling Overhaul Package - Water Pump and Thermostat
(click to expand)
Includes:
+ Genuine BMW electric water pump, p/n 11517586925
+ mounting screws for water pump (set of 3), p/n 11510392553
+ OEM Behr thermostat, p/n 11537549476
+ Original BMW connecting hose from thermostat to water pump, p/n 11537521049
+ OEM-style hose clamps for hose (x 2)

The water pump on the N51 engine has more cooling responsibilities than ever before. The good news is that the pump only works when, and only as much, as it needs to. That means the system can actually stop the pump when it doesn't need to be running. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. The preventative replacement is your only insurance from a very inconvenient and costly breakdown in the future. Plus you get the very latest BMW water pump design with any improvements they've made since your original pump was installed.
Cooling Hoses
(click to expand)
With regular driving the hoses should last a very long time. Even the plastic connectors seem to be holding up well. But as a preventative measure new hoses are recommended. We have also seen issues with re-using hoses as the spring connectors get weak over time and may not have the strength to hold the hose in place. They seem to have a tough time holding tension especially when they have been removed and reinstalled. In the interests of a thorough overhaul we recommend replacing these 328 SULEV water hoses during this job (see diagram):
  • 17127531579, upper radiator hose
  • 17127531581, lower radiator hose
  • 11537613176, water pump to engine
  • 11537534880, gasket for #176 hose
  • 11537545890, thermostat to cylinder head (includes new o-ring)
  • 17117524710, radiator to auto trans cooler
    There are other hoses too but they are not often replaced during a radiator swap (radiator vent hose and heater core hose) and they don't see much wear. We offer these as well if you want a complete set (see Additional Items at the bottom of the page).
Expansion Tank Options
(click to expand)
The expansion tank on the 328 SULEV is not prone to failures (unlike previous 3-series cars) so a new one is not strictly required. There aren't many seams or stress points for it to crack and we haven't heard of too many issues. But we wanted to offer it as part of a complete overhaul in case you want to cover everything. Simiarly, the level sensor is not required unless you're getting erroneous 'low coolant' warnings from the dash/iDrive. We do strongly recommend replacing the cap because that is designed to be the weak point in the system. The cap is what regulates the pressure inside the system and it should be replaced every few years anyway.
Coolant Temp Sensors
(click to expand)
There are two coolant temp sensors on the 328 SULEV - in the lower radiator hose and in the cylinder head. Both feed coolant temps to the ECU to regulate the water pump and cooling fan. You should replace the one in the lower radiator hose because it's one of the main sources for coolant leaks, especially when the old sensor is re-used in a new hose. The sensor in the cylinder head is not as prone to leaks and it's easily accessible so you don't have to replace it right away. But we offer it with the package in case you want to have a complete cooling system overahul.
13621433077, coolant temp sensor (in lower radiator hose)
13621433076, coolant temp sensor (in cylinder head, next to oil filter housing)

BUY AS A PACKAGE AND SAVE $$!

This cooling package fits the following BMWs with the N51 engine and an auto transmission:
2008-2012 E82 BMW 128i SULEV
2007-2011 E90 BMW 328i 328xi 328i xDrive SULEV - Sedan
2007-2012 E91 BMW 328i 328xi 328i xDrive SULEV - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive SULEV - Coupe
2007-2013 E93 BMW 328i SULEV - Convertible
Note: not for cars that have the dealer-installed auxiliary heating option. Some of the hoses are different with that option. It's not a very common option in North America (except in parts of Canada) but there are hoses that are specific to that option.


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E82 128i, E9X 328i Auto Cooling Overhaul Package
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:340251
Part#: TMS214378
Ships in 4 Business Days
Sale - Save 2% $ 621.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 611.54 USD
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This cooling overhaul will cover just about everything you could replace on the 328's cooling system. We start with the basic water pump and thermostat bundle. These are already vital to the health and durability of the N52 328i. But to properly maintain these cars for the long term, the rest of the cooling system must be refreshed and preventatively replaced. Here you can add a radiator, expansion tank, all of the 328 cooling hoses, and the BMW antifreeze. This package fits 328i/328xi with N52 engine and automatic transmission. Some of the components are different for the automatic models because of the auto transmission oil cooler.

The sophisticated electronics of the ECU and water pump means catastrophic overheating should be a thing of the past. But the downside is that the electronics can shut down without any warning or symptoms. And troubleshooting is equally frustrating since the water pump electronics are not readable or serviceable. There are several clues to a faulty thermostat or water pump - the fan runs at full speed all the time (even immediately on a cold start), pending (soft) fault code for low coolant flow, or the water pump can be heard running constantly. But when the pump fails it's an immediate shut down of the engine which can be a major inconvenience and lead to additional repairs that might have been avoided with preventative maintance. We recommend a full cooling system overhaul on the E90/E92 every 80-90,000 miles and to check for soft/pending codes at every 5,000 mile service .


Base Cooling Overhaul Package - Water Pump and Thermostat
(click to expand)
Includes:
+ Genuine BMW electric water pump, p/n 11517586925
+ mounting screws for water pump (set of 3), p/n 11510392553
+ OEM Behr thermostat, p/n 11537549476
+ Original BMW connecting hose from thermostat to water pump, p/n 11537521049
+ OEM-style hose clamps for hose (x 2)

The water pump on the N52 engine has more cooling responsibilities than ever before. The good news is that the pump only works when, and only as much, as it needs to. That means the system can actually stop the pump when it doesn't need to be running. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. The preventative replacement is your only insurance from a very inconvenient and costly breakdown in the future. Plus you get the very latest BMW water pump design with any improvements they've made since your original pump was installed.
Cooling Hoses
(click to expand)
With regular driving the hoses should last a very long time. Even the plastic connectors seem to be holding up well. But as a preventative measure new hoses are recommended. We have also seen issues with re-using hoses as the spring connectors get weak over time and may not have the strength to hold the hose in place. They seem to have a tough time holding tension especially when they have been removed and reinstalled. In the interests of a thorough overhaul we recommend replacing these 328 water hoses during this job (see diagram):
  • 17127531579, upper radiator hose
  • 17127564478, lower radiator hose
  • 11537613176, water pump to engine
  • 11537534880, gasket for #176 hose
  • 11537545890, thermostat to cylinder head (includes new o-ring)
  • 17117524710, radiator to auto trans cooler
    There are other hoses too but they are not often replaced during a radiator swap (radiator vent hose and heater core hose) and they don't see much wear. We offer these as well if you want a complete set (see Additional Items at the bottom of the page).
Expansion Tank Options
(click to expand)
The expansion tank on the 328 is not prone to failures (unlike previous 3-series cars) so a new one is not strictly required. There aren't many seams or stress points for it to crack and we haven't heard of too many issues. But we wanted to offer it as part of a complete overhaul in case you want to cover everything. Simiarly, the level sensor is not required unless you're getting erroneous 'low coolant' warnings from the dash/iDrive. We do strongly recommend replacing the cap because that is designed to be the weak point in the system. The cap is what regulates the pressure inside the system and it should be replaced every few years anyway.

BUY AS A PACKAGE AND SAVE $$!

This cooling package fits the following BMWs with the N52 engine and an auto transmission:
2008-2012 E82 BMW 128i
2007-2011 E90 BMW 328i 328xi 328i xDrive - Sedan
2007-2012 E91 BMW 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i - Convertible
Note: not for cars that have the dealer-installed auxiliary heating option. Some of the hoses are different with that option. It's not a very common option in North America (except in parts of Canada) but there are hoses that are specific to that option.


Click on the options for your kit below and then click "update price" for your kit total.
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Valley Pan Service Kit - Level 2
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15777315
Part#: 11141742042-KT
Ships on Oct 7, 2026
$ 464.99

This product was last offered at the strikethrough price on
04-06-2026

$ 456.99 USD
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$ 456.99 USD
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Valley pan gaskets are a common failure on the M62 motors, Symptoms can include a smell of coolant regularly or a mysterious loss of coolant with no identifiable leaks. This kit contains the basics need to be replaced when doing a valley pan gasket. The included Geba water pump has a metal impeller to replace the failure prone plastic OEM impeller. It is always a good idea to replace the accessory belts when ever they need to be removed to ensure proper tension and belt integrity. Kit includes Valley pan with rubber gasket: updated valley pan alleviates the core of the issue - the design! Valley pan securing hardware Valley pan heat shield Water pipe o-rings Water cross over gaskets Throttle body gasket Geba water pump with gasket Intake gaskets Accessory belt A/C belt
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Packaged by Turner - Corporate Logo
T#:339938
Part#: TMS16415
In Stock
Sale - Save 13% $ 314.99

This product was last offered at the strikethrough price on
05-17-2026

Starting at $ 274.98 USD
Sale - Save 13%
$ 314.99

This product was last offered at the strikethrough price on
05-17-2026

Starting at $ 274.98 USD
This Cooling Kit for the 1988-1992 E30 325i covers all of the major replacement parts for the original cooling system. We start with an OEM Behr radiator and then you choose the additional parts you need to replace next. Add hoses, sensors, water pumps, thermostats, gaskets, hose clamps, and more. We also sell the correct Original BMW antifreeze to finish off the job.

Of the systems in your E30, the cooling system is not where you want to let slide or skip maintenance. Almost nothing will ruin your day more than an overheating engine and it's usually at the absolute worse time. Maintaining the cooling system is easy and you can do most or all of the work yourself with ordinary tools. There's no reason not to address a leaky or out of date cooling system right away.

To save you time and money, we recommend replacing major components with related parts.
Radiator (manual: 17112241912; automatic: 17112241913)
Upper (#11531722218) and lower (#11531718980) hoses to thermostat.
Thermostat with o-ring and housing gasket (#11531713040).
Water pump with timing belt and tensioner (#09-9320-000).
Associated hoses with each of the above.
V-belts with any of the above.

Use the options below to build your package.

This cooling package fits the following BMWs:
1988-1992 E30 BMW 325i 325ic 325is
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Packaged by Turner - Corporate Logo
T#:557310
Part#: E46NONMPCKT4
Back Ordered
$ 1,543.99

This product was last offered at the strikethrough price on
06-23-2026

$ 1,530.99 USD
$ 1,530.99 USD

If you plan to drive your BMW aggressively on the track, it is important that you upgrade your cooling system to avoid overheating. To ensure your BMW keeps cool on the track, we have built out our new High Performance Cooling System Upgrade kits. Featured in this kit is everything you will need to redo your cooling system from top to bottom with OEM components, with select stock components swapped out for the high performance alternative! This kit includes a high performance Mishimoto Radiator, for significantly better cooling than the stock radiator and full aluminum construction that won't crack from long term heat cycling, a performance Mishimoto 70*C thermostat, for lower temperature operation and increased cooling of the engine, and a Stewart High Performance Water Pump, for dramatically increased coolant flow at all RPMs. 

Additional items included in this kit:

  • OEM Replacement Coolant Hoses
  • OEM Expansion Tank, Cap, and Level Sensor
  • OEM Belts, Tensioners, and Pulleys
  • OEM Auxiliary Fan Switch
  • Genuine BMW Hardware for Easy Installation
  • ECS Tuning Aluminum Water Pump Pulley - For increased reliability over the stock composite pulley
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E82 128i, E9X 328i 6MT Cooling Overhaul Package
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:340252
Part#: TMS214377
Ships in 1 Business Day
Sale - Save 15% $ 704.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 596.87 USD
Sale - Save 15%
$ 704.99

This product was last offered at the strikethrough price on
05-03-2026

Starting at $ 596.87 USD
This cooling overhaul will cover just about everything you could replace on the 328's cooling system. We start with the basic water pump and thermostat bundle. These are already vital to the health and durability of the N52 328i. But to properly maintain these cars for the long term, the rest of the cooling system must be refreshed and preventatively replaced. Here you can add a radiator, expansion tank, cooling hoses, and the BMW antifreeze. This package fits 328i/328xi with N52 engine and manual transmission.

The sophisticated electronics of the ECU and water pump means catastrophic overheating should be a thing of the past. But the downside is that the electronics can shut down without any warning or symptoms. And troubleshooting is equally frustrating since the water pump electronics are not readable or serviceable. There are several clues to a faulty thermostat or water pump - the fan runs at full speed all the time (even immediately on a cold start), pending (soft) fault code for low coolant flow, or the water pump can be heard running constantly. But when the pump fails it's an immediate shut down of the engine which can be a major inconvenience and lead to additional repairs that might have been avoided with preventative maintance. We recommend a full cooling system overhaul on the E90/E92 every 80-90,000 miles and to check for soft/pending codes at every 5,000 mile service .


Base Cooling Overhaul Package - Water Pump and Thermostat
(click to expand)
Includes:
+ Genuine BMW electric water pump, p/n 11517586925
+ mounting screws for water pump (set of 3), p/n 11510392553
+ OEM Behr thermostat, p/n 11537549476
+ Original BMW connecting hose from thermostat to water pump, p/n 11537521049
+ OEM-style hose clamps for hose (x 2)

The water pump on the N52 engine has more cooling responsibilities than ever before. The good news is that the pump only works when, and only as much, as it needs to. That means the system can actually stop the pump when it doesn't need to be running. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. The preventative replacement is your only insurance from a very inconvenient and costly breakdown in the future. Plus you get the very latest BMW water pump design with any improvements they've made since your original pump was installed.
Cooling Hoses
(click to expand)
With regular driving the hoses should last a very long time. Even the plastic connectors seem to be holding up well. But as a preventative measure new hoses are recommended. We have also seen issues with re-using hoses as the spring connectors get weak over time and may not have the strength to hold the hose in place. They seem to have a tough time holding tension especially when they have been removed and reinstalled. In the interests of a thorough overhaul we recommend replacing these 328 water hoses during this job (see diagram):
  • 17127531579, upper radiator hose (A)
  • 17127564478, lower radiator hose (B)
  • 11537552396, water pump to engine ©
  • 11537545890, thermostat to cylinder head (includes new o-ring) (D)
    There are other hoses too but they are not often replaced during a radiator swap (radiator vent hose and heater core hose) and they don't see much wear. We offer these as well if you want a complete set (see Additional Items at the bottom of the page).
Expansion Tank Options
(click to expand)
The expansion tank on the 328 is not prone to failures (unlike previous 3-series cars) so a new one is not strictly required. There aren't many seams or stress points for it to crack and we haven't heard of too many issues. But we wanted to offer it as part of a complete overhaul in case you want to cover everything. Simiarly, the level sensor is not required unless you're getting erroneous 'low coolant' warnings from the dash/iDrive. We do strongly recommend replacing the cap because that is designed to be the weak point in the system. The cap is what regulates the pressure inside the system and it should be replaced every few years anyway.

BUY AS A PACKAGE AND SAVE $$!

This cooling package fits the following BMWs with the N52 engine and a manual transmission:
2008-2012 E82 BMW 128i
2007-2011 E90 BMW 328i 328xi 328i xDrive - Sedan
2007-2012 E91 BMW 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
2007-2013 E93 BMW 328i - Convertible


Click on the options for your kit below and then click "update price" for your kit total.
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ECS Cooling System Refresh Kit - Level 1
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15744010
Part#: ECSE4617111KT
In Stock
Sale - Save 8% $ 438.99

This product was last offered at the strikethrough price on
05-03-2026

$ 401.84 USD
Free Shipping on orders $49 and up
Sale - Save 8%
$ 438.99

This product was last offered at the strikethrough price on
05-03-2026

$ 401.84 USD
Free Shipping on orders $49 and up
BMW has been designing notoriously failure-prone cooling systems since the late 1980s. The coolant capacity in most BMW engines is not sufficient to accommodate any driving or overheating near red zone temperatures. After the gauge reaches this critical area, it is common for thousands of dollars in damage to occur. Stop the problems before they arise. If you vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000 mile intervals. Water pump failure, cracked plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. Water pump with metal impeller ECS Aluminum water pump pulley Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses
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High Performance Metal Water Pump & Pulley Kit - M54
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:55749612
Part#: 888010330KT3
In Stock
New Item
$ 299.99 USD
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Packaged by Turner - Corporate Logo
T#:557241
Part#: E9X328BCKT
In Stock
Sale - Save 5% $ 711.99

This product was last offered at the strikethrough price on
03-24-2026

$ 679.46 USD
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Sale - Save 5%
$ 711.99

This product was last offered at the strikethrough price on
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Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

See kit contents below for all included components.

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ECS Cooling System Refresh Kit - Level 1
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15677493
Part#: 11517527910-KT
In Stock
Sale - Save 4% $ 336.99

This product was last offered at the strikethrough price on
05-03-2026

$ 324.43 USD
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Sale - Save 4%
$ 336.99

This product was last offered at the strikethrough price on
05-03-2026

$ 324.43 USD
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Stop the problems before they arise. If you vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000 mile intervals. Water pump failure, cracked plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. This kit was put together by Turner including the basic parts that need replaced. Water pump with metal impeller Fan switch Thermostat and thermostat housing Sealing gaskets Expansion tank with level sensor, clamp and cap 1 Gallon Coolant Upper & lower radiator hoses
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Expansion Tank Replacement Kit - E60 M5,E63 M6
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:584232
Part#: 17112283345KT
In Stock
$ 250.99 USD
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$ 250.99 USD
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The expansion tank in your BMW is a vital component of the cooling system, and because of the constant abuse from heat and temperature changes, it often fails. This kit contains all of the basic items needed for a tank replacement.
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Oil Filter Housing Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:57507416
Part#: 11428642283KT4
In Stock
New Item
$ 361.99 USD
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$ 361.99 USD
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Maintain reliable oiling system performance and prevent catastrophic oil leaks on the street or track with an Oil Filter Housing Replacement Kit. Designed to replace failing or heat-warped factory housings, this complete assembly cures problematic oil leakage while ensuring proper oil flow through your engine's lubrication circuit. Bundled with a fresh oil pressure sensor, factory sealing gaskets, and new mounting hardware, this kit provides a complete overhaul solution to safeguard engine health and ensure precise oil pressure readings under extreme operating conditions.
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N54 Cooling System Upgrade Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:26771748
Part#: 024797ECS03KT2
In Stock
Sale - Save 18% $ 637.99

This product was last offered at the strikethrough price on
05-03-2026

$ 523.17 USD
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Sale - Save 18%
$ 637.99

This product was last offered at the strikethrough price on
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$ 523.17 USD
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The N54 engine, like many BMW engines, has a reputation for encountering cooling system issues. To address this, Turner Motorsport enthusiasts have curated a comprehensive kit to safeguard your N54 cooling system against potential failures.

Included in the kit:

1. Turner Motorsport Heavy Duty Aluminum Expansion Tank Kit:

Enhances the factory plastic tank design, known for its vulnerability to failure. Maintains original coolant capacity and expansion volume. Features a baffled tank design to prevent air pockets during aggressive driving. Includes a specially designed bleed passage to avoid air introduction during engine cooldown. Constructed with fully-TIG welded 5052 aluminum. Comes with aluminum bleeder screw, OE coolant level sensor, expansion tank cap, flared coolant pressure release line, and all necessary installation hardware. 2. ECS Performance Coolant Outlet Hose Kit:

4-ply reinforced silicone outlet hose. Internal layer lined with Flourosilicone for exceptional chemical resistance. Equipped with billet 6061-T6 outlet adapter. 3. Redline Water-Wetter Coolant Additive - 12 oz:

Lowers coolant temperatures by up to 30*F. Compatible with various cooling system components including aluminum, cast iron, copper, brass, and bronze. For N54 owners seeking enhanced cooling system performance and longevity, especially those pushing significant power, this kit is indispensable.

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Cooling System Service Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:57507415
Part#: 11428642283KT3
In Stock
New Item
$ 458.99 USD
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$ 458.99 USD
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Eliminate common top end oil leaks and fragile plastic cooling components with the ultimate preventive maintenance package for your BMW. Designed for thorough maintenance or prep before track days, this kit pairs a new oil filter housing assembly with fresh gaskets and hardware to restore leak-free oil pressure management. To address vulnerable factory cooling lines, the package includes an upgraded ECS billet aluminum coolant flange, replacing the failure-prone OEM plastic fitting with a permanent metal solution. Bundled with factory Genuine BMW coolant, this service kit delivers peace of mind under extreme driving conditions.
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Water Pump And Thermostat Kit with Coolant
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:55965857
Part#: 11517604027KT3
In Stock
New Item
$ 493.39 USD
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Engineered to OE standards, this comprehensive cooling system package integrates the water pump, aluminum thermostat assembly, critical replacement hardware, and factory specified fluid into a single kit.
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Packaged by Turner - Corporate Logo
T#:55353595
Part#: OTN54.T85KT3
In Stock
New Item
$ 390.23 USD
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High oil temperatures are the ultimate enemy of your engine's longevity and performance. If you want to keep pushing your BMW to the limit you need to manage the heat.

Packaged by Turner - Corporate Logo
T#:339099
Part#: TMS16430
Ships in 2 Business Days
Sale - Save 8% $ 515.99

This product was last offered at the strikethrough price on
08-17-2026

Starting at $ 477.24 USD
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Sale - Save 8%
$ 515.99

This product was last offered at the strikethrough price on
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Starting at $ 477.24 USD
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This is a customizable cooling system overhaul kit, which starts off with the basic radiator and water pump and can be configured to replace all the M54 common cooling system failure parts in one package. This cooling system package is for the 2003-2005 Z4 Roadster.

The Z4 cooling system is much like that of the sister 3 series. Several of the primary cooling components are prone to failure within 60k miles (or less in many cases). A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the radiator & waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your cooling system. Available with our kit is an OEM Behr radiator, an Original BMW water pump (with updated composite impeller), thermostat (complete with housing), radiator cap, new hoses, and other essential cooling parts.

Optional items (which can be added below):
  • Radiator cap
  • Major cooling hoses
  • Original BMW antifreeze
  • Upgrade the water pump to a Stewart EMP High Performance pump
  • Add a new coolant expansion tank (known for cracking)
  • Include a new coolant level sensor (known for failing / throwing "check coolant" messages)
  • Include a new coolant temp sensor (located in the lower radiator hose) (re-using the old sensor and seal may lead to a leak)
  • Add a new thermostat for an automatic transmission (located with the expansion tank).
    This cooling system overhaul kit fits the following BMWs:
    4/2004-2005 E85 BMW Z4 2.5i Z4 3.0i

    Please put a check in the boxes next to the items you wish to order.
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    Thermostat & Water Pump Replacement Kit - BMW N62 4.8L
    10X Entries Into Our F80 M3 Sweepstakes
    Packaged by Turner - Corporate Logo
    T#:30397457
    Part#: 11517586779KT2
    Ships in 1 Business Day
    $ 321.99

    This product was last offered at the strikethrough price on
    08-25-2026

    $ 261.99 USD
    Free Shipping on orders $49 and up
    $ 261.99 USD
    Free Shipping on orders $49 and up

    Maintain your BMW's cooling system and avoid costly repairs with our comprehensive Water Pump and Thermostat Replacement Kit, meticulously crafted by the experts at Turner Motorsport! Designed to service BMW models with the N62 engine, this kit ensures your vehicle runs at optimal temperature, preventing overheating and extending engine life.

    Key Benefits:

    All-Inclusive Kit: This package includes everything you need for a complete cooling system overhaul, saving you time and effort sourcing individual components. High-Quality Components: Each part in this kit is manufactured to meet or exceed OEM standards, guaranteeing reliable performance and longevity. Optimal Cooling Performance: Regularly replacing your water pump and thermostat every 60,000 miles is crucial for maintaining peak cooling efficiency. Our kit ensures your BMW's engine stays within the ideal temperature range, preventing overheating and potential engine damage. Enhanced Reliability: By including premium components like the Wahler Thermostat and Graf Water Pump, this kit provides enhanced durability and peace of mind. Kit Contents:

    Wahler Thermostat (Part #11537586885): Renowned for its precision and reliability, ensuring your engine maintains the correct operating temperature. Graf Water Pump (Part #11517586779): High-performance pump designed for consistent and efficient coolant circulation. Genuine BMW Hex Bolts (M6x25) (Part #07119905400): Essential hardware for secure installation. Genuine BMW Hex Bolts (M6x40) (Part #07119904525): Ensures all components are firmly in place. Genuine BMW Coolant/Antifreeze (Diluted, 1 Gallon) (Part #82141467704): Formulated specifically for BMW cooling systems, providing optimal protection against corrosion and freezing. Upgrade your BMW N62 cooling system with this expertly curated Water Pump and Thermostat Replacement Kit. Perfect for maintaining the health and efficiency of your engine, this kit is an essential investment for any BMW enthusiast. Order now from Turner Motorsport and ensure your vehicle performs at its best.

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    ECS Cooling System Refresh Kit - Level 3 plus
    10X Entries Into Our F80 M3 Sweepstakes
    Packaged by Turner - Corporate Logo
    T#:15710794
    Part#: 17119071519G-KT
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    Stop the problems before they arise. If your vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000-mile intervals. Water pump failure cracked plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. Stewart High-Performance Water Pump ECS Aluminum Water pump pulley Fan Switch Thermostat with Housing Sealing Gaskets Expansion Tank with level sensor and clamp Pressure Cap 1 Gallon Coolant Upper & Lower Radiator Hoses Accessory Drive Belts Radiator Drain Plug Mishimoto Performance Aluminum Radiator Idler Pulley Hydraulic Tensioner and Pulley A/C Belt Tensioner Assembly
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    Packaged by Turner - Corporate Logo
    T#:557230
    Part#: E39540BCKT
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    Just like the rest of your vehicle's major systems, the cooling system must also be addressed periodically to ensure proper cooling and component reliability. Plastic and rubber components become brittle and prone to splitting or cracking after long periods of heating and cooling cycles, especially in colder climates! The coolant itself can degrade or become contaminated, leading to potential corrosion or freezing issues. Finally, thermostats and sensors can fail completely, preventing proper cooling and/or coolant temperature readings to become inaccurate.

    To make sure you are not left stranded on the side of the road with an overheated engine, we have put together this Basic Cooling System Service kit. This kit contains all of the most-likely-to-fail components, giving you peace of mind knowing your engine will continue to run cool for another 60,000+ miles.

    See kit contents below for all included components.

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    Cooling System overhaul Kit - E39 528i From 09/1998
    10X Entries Into Our F80 M3 Sweepstakes
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    T#:554546
    Part#: 11517527910KT17
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    This is a compete cooling system overhaul kit, which includes all the common cooling system failure parts bundled into a complete package. This cooling system package is for the E39 528i with the M52 engine. 

    A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the thermostat housing, radiator, and waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your entire cooling system. Keep on top of the cooling needs of your engine for your own piece of mind. Potential buyers also see the upside of a properly maintained car with receipts. 

     

    This kit fits the following BMWs:

    09/1998 - 2000 E39 528i

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    Packaged by Turner - Corporate Logo
    T#:338700
    Part#: TMS14414
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    This is a compete cooling system overhaul kit, which includes all the common M52 cooling system failure parts bundled into a complete package. This cooling system package is for the 1997-1998 528i with the M52 engine with either the manual or automatic transmission.

    Much of the E39 cooling system is shared with the 3-series cars of the same era. Which means the potential for serious cooling system and engine-related failures. Several of the primary cooling components are prone to failure within 60k miles (or less in many cases). A failure in the cooling system can lead to overheating and catastrophic engine failure. Don't gamble your engine! By replacing these core items preventatively, such as the radiator & waterpump, you are defusing what could be a ticking cooling system time bomb. And if you've had a failure of one of these parts, now is the time to refresh your cooling system. Our kit includes one OEM Behr radiator, an Original BMW water pump (with updated composite impeller), thermostat, radiator cap, and new radiator hoses.

    Basic Kit Contents:
    17111702969, radiator (OEM Behr)
    11517527799, water pump (OE BMW)
    11537511580, 88�C thermostat (OEM Behr/Hella)
    11531740832, upper radiator hose (OEM Rein/CRP)
    11531740481, lower radiator hose (OEM Rein/CRP)
    17111427156, expansion tank hose (OEM Rein/CRP)
    17111742231, expansion tank cap (OEM Behr/Hella)

    Cooling Kit Options:
    E39 Water Pump Options
    (click to expand)
    OE BMW with composite impeller. The original BMW water pumps had plastic impellers which degraded and failed. The latest design uses composites that are much better and will not corrode. Compared to a metal impeller, the composite is lighter so it's more efficient and it will not wear out the bearings. We don't even offer the metal impeller pumps with this kit because the BMW composite one is so much better.
    Stewart high performance. The ultimate in M50 water pumps! It features a stainless steel impeller, heavy-duty bearings, a better o-ring seal, and flows 20% more than the stock pump. If indestructible is what you're looking for, this is the pump to go with. It also comes with a lifetime warranty for piece of mind.
    E39 Expansion Tank
    (click to expand)
    The original expansion tank is prone to cracks and leakage. Again - it's made from a weak plastic. The material has improved over the years but the only option remains an OEM plastic tank. It's a good idea to replace it if you're doing a whole overhaul. Don't re-use the original tank if you're going to the trouble of replacing everything else!
    E39 Thermostat Housing
    (click to expand)
    The original BMW plastic thermostat housing is brittle and does not seal well. We only sell it under protest. Instead we've been selling this aluminum housing for the last 20+ years. The aluminum does not have the same shortcomings as the plastic one. We made this item an option in case you already have the aluminum housing.

    Use the options below to build your cooling package.

    This cooling system overhaul kit fits the following BMWs:
    1997-1998 E39 BMW 528i
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    ECS Cooling System Refresh Kit - Level 2
    10X Entries Into Our F80 M3 Sweepstakes
    Packaged by Turner - Corporate Logo
    T#:15710821
    Part#: 17137607482-KT
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    As your mileage increases, so does wear and tear on your engine's cooling components. Cooling system components live a rough life, going through extreme temperature changes and being exposed to the elements. A cooling system failure can, and probably will leave you stranded. Included in this kit Water pump with new bolts Thermostat & housing Expansion tank with level sensor Expansion tank cap 1 Gallon of OEM Coolant Waterpump & thermostat hoses Upper and lower radiator hoses Accessory belt
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    ECS Cooling System Refresh Kit - Level 3
    10X Entries Into Our F80 M3 Sweepstakes
    Packaged by Turner - Corporate Logo
    T#:15710765
    Part#: 07119904677-KT
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    Prevent cooling issues and take service of your cooling system one step further with an ECS Tuning Level 3 Cooling System Maintenance Kit. The experts at ECS have identified all of the common parts of the cooling system generally considered weak links on your BMW. Stop the problems before they arise. If you vehicle has 80,000 miles or more, replace all of these components to ensure that your vehicle stays healthy. To keep everything in top order, continue to replace these components at 80,000 mile intervals. Water pump failure, cracked plastic housings, and expansion tank leaks will not be a concern once all these problem parts are replaced. This kit was put together by ECS for a complete cooling system service. HEPU water Pump with metal impeller ECS Aluminum Water pump pulley Fan Switch Thermostat with Housing Sealing Gaskets Expansion Tank with level sensor and clamp Pressure Cap 1 Gallon Coolant Upper & Lower Radiator Hoses Accessory Drive Belts Radiator Drain Plug Nissens Radiator Idler Pulley Hydraulic Tensioner and Pulley A/C Belt Tensioner Assembly
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    Packaged by Turner - Corporate Logo
    T#:340254
    Part#: TMS215326
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    This cooling overhaul will cover just about everything you could replace on the 328 SULEV's cooling system. We start with the basic water pump and thermostat bundle. These are already vital to the health and durability of the N51 328 SULEV. But to properly maintain these cars for the long term, the rest of the cooling system must be refreshed and preventatively replaced. Here you can add a radiator, expansion tank, cooling hoses, and the BMW antifreeze. This package fits 128/328 SULEV with N51 engine and manual transmission.

    The sophisticated electronics of the ECU and water pump means catastrophic overheating should be a thing of the past. But the downside is that the electronics can shut down without any warning or symptoms. And troubleshooting is equally frustrating since the water pump electronics are not readable or serviceable. There are several clues to a faulty thermostat or water pump - the fan runs at full speed all the time (even immediately on a cold start), pending (soft) fault code for low coolant flow, or the water pump can be heard running constantly. But when the pump fails it's an immediate shut down of the engine which can be a major inconvenience and lead to additional repairs that might have been avoided with preventative maintance. We recommend a full cooling system overhaul on the E90/E92 every 80-90,000 miles and to check for soft/pending codes at every 5,000 mile service .


    Base Cooling Overhaul Package - Water Pump and Thermostat
    (click to expand)
    Includes:
    + Genuine BMW electric water pump, p/n 11517586925
    + mounting screws for water pump (set of 3), p/n 11510392553
    + OEM Behr thermostat, p/n 11537549476
    + Original BMW connecting hose from thermostat to water pump, p/n 11537521049
    + OEM-style hose clamps for hose (x 2)

    The water pump on the N51 engine has more cooling responsibilities than ever before. The good news is that the pump only works when, and only as much, as it needs to. That means the system can actually stop the pump when it doesn't need to be running. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. The preventative replacement is your only insurance from a very inconvenient and costly breakdown in the future. Plus you get the very latest BMW water pump design with any improvements they've made since your original pump was installed.
    Coolant Hoses
    (click to expand)
    With regular driving the hoses should last a very long time. Even the plastic connectors seem to be holding up well. But as a preventative measure new hoses are recommended. We have also seen issues with re-using hoses as the spring connectors get weak over time and may not have the strength to hold the hose in place. They seem to have a tough time holding tension especially when they have been removed and reinstalled. In the interests of a thorough overhaul we recommend replacing these 328 SULEV water hoses during this job (see diagram):
    • 17127531579, upper radiator hose (A)
    • 17127531581, lower radiator hose (B)
    • 11537552396, water pump to engine ©
    • 11537545890, thermostat to cylinder head (includes new o-ring) (D)
      There are other hoses too but they are not often replaced during a radiator swap (radiator vent hose and heater core hose) and they don't see much wear. We offer these as well if you want a complete set (see Additional Items at the bottom of the page).
    Expansion Tank Options
    (click to expand)
    The expansion tank on the 328 SULEV is not prone to failures (unlike previous 3-series cars) so a new one is not strictly required. There aren't many seams or stress points for it to crack and we haven't heard of too many issues. But we wanted to offer it as part of a complete overhaul in case you want to cover everything. Simiarly, the level sensor is not required unless you're getting erroneous 'low coolant' warnings from the dash/iDrive. We do strongly recommend replacing the cap because that is designed to be the weak point in the system. The cap is what regulates the pressure inside the system and it should be replaced every few years anyway.
    Coolant Temp Sensors
    (click to expand)
    There are two coolant temp sensors on the 328 SULEV - in the lower radiator hose and in the cylinder head. Both feed coolant temps to the ECU to regulate the water pump and cooling fan. You should replace the one in the lower radiator hose because it's one of the main sources for coolant leaks, especially when the old sensor is re-used in a new hose. The sensor in the cylinder head is not as prone to leaks and it's easily accessible so you don't have to replace it right away. But we offer it with the package in case you want to have a complete cooling system overahul.
    13621433077, coolant temp sensor (in lower radiator hose)
    13621433076, coolant temp sensor (in cylinder head, next to oil filter housing)

    BUY AS A PACKAGE AND SAVE $$!

    This cooling package fits the following BMWs with the N51 engine and a manual transmission:
    2008-2012 E82 BMW 128i SULEV
    2007-2011 E90 BMW 328i 328xi 328i xDrive SULEV - Sedan
    2007-2012 E91 BMW 328i 328xi 328i xDrive SULEV - Wagon
    2007-2013 E92 BMW 328i 328xi 328i xDrive SULEV - Coupe
    2007-2013 E93 BMW 328i SULEV - Convertible
    Note: not for cars that have the dealer-installed auxiliary heating option. Some of the hoses are different with that option. It's not a very common option in North America (except in parts of Canada) but there are hoses that are specific to that option.


    Click on the options for your kit below and then click "update price" for your kit total.
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    Thermostat Replacement Kit - E39 540i 1999-2003
    10X Entries Into Our F80 M3 Sweepstakes
    Packaged by Turner - Corporate Logo
    T#:554085
    Part#: 11531436386KT3
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    When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

    Kit includes:

    • Rein thermostat
    • Thermostat mounting hardware
    • 1 liter of coolant

     

    This item fits the following BMWs: 
    1999-2003  E39 BMW  540i 
     

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    Thermostat Replacement Kit - E39 540i 1996-1998
    10X Entries Into Our F80 M3 Sweepstakes
    Packaged by Turner - Corporate Logo
    T#:554083
    Part#: 11531437526KT2
    Ships in 2 Business Days
    Sale - Save 2% $ 189.99

    This product was last offered at the strikethrough price on
    05-29-2026

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    When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

    Kit includes:

    • Behr thermostat with O-ring
    • Thermostat mounting hardware
    • 1 Gallon BMW coolant

     

    This item fits the following BMWs: 

    1997-1998  E39 BMW  540i

     

     

    When it comes time to replace your thermostat, be sure you have everything you need. This kit includes everything you need to replace your thermostat, including the thermostat.

    Kit includes:

    • Behr thermostat with O-ring
    • Thermostat mounting hardware
    • 1 Gallon BMW coolant
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