Find Parts That Fit Your Vehicle

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.

Sub-Categories

Sort By:

Packaged by Turner - Corporate Logo
T#:5376274
Part#: 11517586925TKT
In Stock
Sale - Save 25% $ 448.99

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

$ 337.56 USD
Free Shipping
Sale - Save 25%
$ 448.99

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

$ 337.56 USD
Free Shipping
Everything you need to replace your water pump and thermostat. 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 thermostat to water pump hose Mounting hardware required for both the thermostat and water pump
Show More Show Less
Packaged by Turner - Corporate Logo
T#:554053
Part#: 11517604027KT1
In Stock
Sale - Save 25% $ 461.99

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

$ 344.49 USD
Free Shipping
Sale - Save 25%
$ 461.99

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

$ 344.49 USD
Free Shipping

The N20/n26 engined cars already suffer from reduced cooling area because of the factory intercooler, tight space under the hood, and of course heat from the turbo(s). BMW addressed these challenges a number of ways, including a dynamic, 'smart' electric water pump with increased output compared to normally aspirated models. The cooling demands mean additional stress on the major cooling components, especially the water pump and thermostat. 
 

Kit includes:

  • Mahle-Behr thermostat
  • Pierburg water pump
  • Genuine BMW coolant
  • Mounting hardware required for both the thermostat and water pump

 

This item fits the following BMWs: 
2014+ F22 BMW 228i 228i xDrive 
2014+ F23 BMW 228i 228i xDrive 
2012+ F30 BMW 328i 328i xDrive - Sedan 
2013+ F31 BMW 328i xDrive - Wagon 
2013+ F32 BMW 428i 428i xDrive - Coupe 
2013+ F33 BMW 428i Convertible 428i xDrive Convertible - Convertible 
2014+ F34 BMW 328i xDrive GT - Gran Tourismo 
2014+ F36 BMW 428i Gran Coupe 428i xDrive Gran Coupe 
2012+ F10 BMW 528i 528i xDrive 
2011+ F25 BMW X3 xDrive28i 
2015+ F26 BMW X4 xDrive28i 
2009+ E89 BMW Z4 sDrive28i

Show More Show Less
Packaged by Turner - Corporate Logo
T#:554084
Part#: 11537836155KT2
In Stock at Vendor
Sale - Save 14% $ 99.99

This product was last offered at the strikethrough price on
06-16-2026

$ 86.07 USD
Free Shipping
Sale - Save 14%
$ 99.99

This product was last offered at the strikethrough price on
06-16-2026

$ 86.07 USD
Free Shipping
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.

Packaged by Turner - Corporate Logo
T#:5376299
Part#: 11517632426TMSKT
In Stock
Sale - Save 13% $ 987.99

This product was last offered at the strikethrough price on
03-31-2026

$ 855.23 USD
Free Shipping
Sale - Save 13%
$ 987.99

This product was last offered at the strikethrough price on
03-31-2026

$ 855.23 USD
Free Shipping
Add strength to your cooling system and replace your water pump The secret of any reliable performance car is a rock-solid cooling system. Unfortunately, the N54's stock cooling system has several shortcomings that get in the way of reliable, repeatable, dependable performance. Turner Motorsport has spent years behind the wheel of modified N54-powered BMWs, and we've figured out what it takes to keep your N54 cool and happy. Using a combination of in-house designed parts and carefully-selected aftermarket components, we've put together an all-inclusive package that will allow you to replace your water pump and beef up your cooling system at the same time. Here's what's included: New water pump with replacement screws New thermostat Billet thermostat hose adapter (a great replacement for the stock, crack-prone plastic part!) Silicone coolant outlet hose Aluminized silicone water pump hose (aluminized for heat resistance to stay cool!) Heavy Duty aluminum coolant bleed screw (replace the strip-prone plastic screw!) New hose clamps 1 gallon of Genuine BMW coolant (just add distilled water at your desired ratio) Red Line Water Wetter (trust us, this stuff works - we've been running it for years!)Add strength to your cooling system and replace your water pump The secret of any reliable performance car is a rock-solid cooling system. Unfortunately, the N54's stock cooling system has several shortcomings that get in the way of reliable, repeatable, dependable performance. Turner Motorsport has spent years behind the wheel of modified N54-powered BMWs, and we've figured out what it takes to keep your N54 cool and happy. Using a combination of in-house designed parts and carefully-selected aftermarket components, we've put together an all-inclusive package that will allow you to replace your water pump and beef up your cooling system at the same time. Here's what's included: New water pump with replacement screws New thermostat Billet thermostat hose adapter (a great replacement for the stock, crack-prone plastic part!) Silicone coolant outlet hose Aluminized silicone water pump hose (aluminized for heat resistance to stay cool!) Heavy Duty aluminum coolant bleed screw (replace the strip-prone plastic screw!) New hose clamps 1 gallon of Genuine BMW coolant (just add distilled water at your desired ratio) Red Line Water Wetter (trust us, this stuff works - we've been running it for years!)
Show More Show Less

Packaged by Turner - Corporate Logo
T#:554075
Part#: 11537601158KT2
In Stock
Sale - Save 24% $ 106.99

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

$ 81.44 USD
Free Shipping
Sale - Save 24%
$ 106.99

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

$ 81.44 USD
Free Shipping

If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include prolonged warm-up at highway speeds from the thermostat being stuck open, or consistent overheating issues from the thermostat being stuck in the closed position. Either condition can result in poor performance, and potential damage to vital components in your vehicle.

Kit includes

  • Wahler Thermostat
  • 1 liter of Coolant

This item fits the following BMWs: 
2008-2013  E82 BMW  135i 135is 1M Coupe 
2013+  E84 BMW  X1 xDrive35i 
2011  E90 BMW  335i 335xi 335i xDrive - Sedan 
2011-2013  E92 BMW  335i 335xi 335i xDrive - Coupe 
2011-2013  E93 BMW  335i Convertible 
2011-2013  E70 BMW  X5 xDrive35i 
2011-2013  E71 BMW  X6 xDrive35i

Show More Show Less
Packaged by Turner - Corporate Logo
T#:554062
Part#: 11517801063KT2
In Stock
Sale - Save 6% $ 187.99

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

$ 176.63 USD
Free Shipping
Sale - Save 6%
$ 187.99

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

$ 176.63 USD
Free Shipping

The water pumps BMW's should be serviced near 80,000 miles and may become an 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:

  • Facet thermostat
  • Graf water pump
  • Vaico coolant
  • Mounting hardware required for the water pump

 

This item fits the following BMWs: 
2009+ E90 BMW 335d 
2009+ E70 BMW X5 xDrive35d

Show More Show Less

Packaged by Turner - Corporate Logo
T#:6091465
Part#: 11515A05704APKT
Ships on Nov 30, 2026
Sale - Save 15% $ 620.99

This product was last offered at the strikethrough price on
04-01-2026

$ 526.79 USD
Free Shipping
Sale - Save 15%
$ 620.99

This product was last offered at the strikethrough price on
04-01-2026

$ 526.79 USD
Free Shipping
If your water pump is starting to fail, you may notice coolant leaks, or even hear a whining noise coming from under the hood. If you think your water pump is starting to fail, replace it as soon as you can. The main downside to an electric water pump is you may also notice nothing - nothing but overheating! Keep your eyes peeled for warning signs it may be time to replace your water pump. N54 and N55 engines are prone to water pump failure - replace every 60,000 miles. Comes with electric water pump and installation hardware. Aluminum mounting bolts are one time use. Replace every time the water pump is removed.
Show More Show Less
Packaged by Turner - Corporate Logo
T#:557216
Part#: E83M54BCKT
In Stock
Sale - Save 1% $ 311.99

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

$ 308.45 USD
Free Shipping
Sale - Save 1%
$ 311.99

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

$ 308.45 USD
Free Shipping

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.

Show More Show Less

Packaged by Turner - Corporate Logo
T#:554067
Part#: 11517531859KT4
In Stock
Sale - Save 8% $ 243.99

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

$ 224.38 USD
Free Shipping
Sale - Save 8%
$ 243.99

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

$ 224.38 USD
Free Shipping

The water pumps in BMW's should be serviced near 80,000 miles and may become an 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
  • Geba water pump
  • Vaico coolant
  • Mounting hardware required for the water pump


This item fits the following BMWs:
2006-2010 E60 BMW 550i
2006-2010 E63 BMW 650i
2005-2008 E65 BMW 750i 750li
2007-2013 E70 BMW X5 4.8i X5 xDrive48i

Show More Show Less

Packaged by Turner - Corporate Logo
T#:378340
Part#: 11517632426KT3
In Stock
Sale - Save 13% $ 743.03

This product was last offered at the strikethrough price on
03-31-2026

$ 645.99 USD
Free Shipping
Sale - Save 13%
$ 743.03

This product was last offered at the strikethrough price on
03-31-2026

$ 645.99 USD
Free Shipping

The water pumps in BMW N54 models are known for failure near 80,000 miles. This is a very common issue that often times leaves the owner stranded. This kit provides a single stop for the water pump and thermostat replacement to save the search and get you back on the road.

Included in this kit:

Thermostat
Water pump
Genuine BMW coolant
Mounting hardware required for both the thermostat and water pump

Show More Show Less
Packaged by Turner - Corporate Logo
T#:554065
Part#: 11517548263KT3
Ships Today
Sale - Save 31% $ 336.99

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

$ 232.63 USD
Free Shipping
Sale - Save 31%
$ 336.99

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

$ 232.63 USD
Free Shipping

The water pumps in BMW's should be serviced near 80,000 miles and may become an 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:

  • Thermostat
  • Water pump
  • Coolant

 

This item fits the following BMW Engines: 
N63,N63N,S63,N62N 

Show More Show Less
Packaged by Turner - Corporate Logo
T#:557233
Part#: E39540BCKT2
Ships on Aug 19, 2026
Sale - Save 13% $ 389.99

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

$ 340.78 USD
Free Shipping
Sale - Save 13%
$ 389.99

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

$ 340.78 USD
Free Shipping

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.

Show More Show Less


Packaged by Turner - Corporate Logo
T#:340196
Part#: E46COOLINGPACK
In Stock at Vendor
Starting at $ 611.46 USD
Free Shipping
Starting at $ 611.46 USD
Free Shipping
This is a compete cooling system overhaul kit, which includes all the common E46 cooling system failure parts bundled into a complete package. This cooling system package is for all of the non-M E46 3 series -- those made in 1999-2005 as well as 2006 coupes and convertibles.

The E46 cooling system is much like that of the previous generation 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. Our kit includes one OEM Behr radiator, an Original BMW water pump (with updated composite impeller), thermostat (complete with housing), radiator cap, and new hoses (as pictured).

Optional items (which can be added below):
- Original BMW antifreeze
- Upgrade the water pump to a Stewart EMP High Performance pump
- Add a new coolant expansion tank (known for cracking)
- Add a new coolant level sensor (known for failing / throwing "check coolant" messages)

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
2001-2005 E46 3 Series Sedan/Wagon - 325i, 325xi, 330i, 330xi
2001-2006 E46 3 Series Coupe/Convertible - 325Ci, 330Ci
Show More Show Less
Packaged by Turner - Corporate Logo
T#:338252
Part#: 11531309667KIT
Ships in 4 Business Days
Sale - Save 3% $ 212.99

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

Starting at $ 206.38 USD
Free Shipping
Sale - Save 3%
$ 212.99

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

Starting at $ 206.38 USD
Free Shipping
This pacakge of six rubber cooling hoses for the E30 M3 includes most of the commonly replaced coolant lines on the S14. Set includes -
  • upper radiator hose from the large metal coolant pipe, #23 in the diagram
  • top thermostat hose to the large metal coolant pipe, #15 in the diagram
  • middle thermostat hose (T-shaped) to the small metal coolant pipe and to the water pump, #13 in the diagram
  • lower thermostat hose to the bottom of radiator, #22 in the diagram
  • lower radiator hose to coolant pipe, #24 in the diagram
  • expansion tank hose to the small metal coolant pipe, #17 in the diagram
    We use a mix if OE BMW and aftermarket hoses that we trust. This is the original E30 M3 Cooling Hose kit that we have been selling for 20 years. Looking for hose clamps too? We have OEM-style clamps for these too, select this in the options list below.

    This item fits the following BMWs:
    1988-1991 E30 BMW M3
  • Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:339100
    Part#: TMS224320
    In Stock at Vendor
    Starting at $ 514.24 USD
    Free Shipping
    Starting at $ 514.24 USD
    Free Shipping
    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:
    2003-2005 E85 BMW Z4 2.5i Z4 3.0i

    Please put a check in the boxes next to the items you wish to order.
  • Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:340246
    Part#: TMS214376
    In Stock
    Sale - Save 24% $ 426.99

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

    Starting at $ 322.55 USD
    Free Shipping
    Sale - Save 24%
    $ 426.99

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

    Starting at $ 322.55 USD
    Free Shipping
    This cooling overhaul will cover just about everything you could replace on the 325/330'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 325/330. 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 325/330 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.
    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 325/330 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 325/330 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 E90 325/330 - 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 N52 engine and a manual transmission:
    2006-2006 E90 BMW 325i 325xi 330i 330xi - Sedan
    2006-2006 E91 BMW 325xi - Wagon


    Click on the options for your kit below and then click "update price" for your kit total.
    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:557224
    Part#: E9X328MBCKT
    In Stock
    Sale - Save 5% $ 674.60

    This product was last offered at the strikethrough price on
    04-17-2026

    $ 639.87 USD
    Free Shipping
    Sale - Save 5%
    $ 674.60

    This product was last offered at the strikethrough price on
    04-17-2026

    $ 639.87 USD
    Free Shipping

    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.

    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:5416786
    Part#: 11531436408TMSKT
    Ships on Aug 19, 2026
    Sale - Save 6% $ 307.99

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

    $ 288.59 USD
    Free Shipping
    Sale - Save 6%
    $ 307.99

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

    $ 288.59 USD
    Free Shipping
    The cooling hoses on your BMW are exposed to vast temperature changes, as well as exposure the elements. Over time, they will fail and can cause you to be stranded, or a worse failure. Turner Motorsport has created a kit that includes all of the necessary cooling system hoses as well as a gallon of coolant to correctly service your cooling system. Kit includes: Genuine BMW Antifreeze - 1 Gallon 2 Heater hoses Expansion tank hose Water pipe to expansion tank hose Heater inlet pipe Water pipe Upper radiator hose Lower radiator hose
    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:638920
    Part#: 11531436408KT3
    Ships on Aug 19, 2026
    Sale - Save 19% $ 399.99

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

    $ 325.16 USD
    Free Shipping
    Sale - Save 19%
    $ 399.99

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

    $ 325.16 USD
    Free Shipping
    The cooling hoses on your BMW are exposed to vast temperature changes, as well as exposure the elements. Over time, they will fail and can cause you to be stranded, or a worse failure. We have created a kit that includes ECS Tuning silicone radiators hoses and all other necessary cooling system hoses as well as a gallon of coolant to correctly service your cooling system.
    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:557236
    Part#: E46M5XBCKT
    In Stock
    Sale - Save 8% $ 438.99

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

    $ 403.26 USD
    Free Shipping
    Sale - Save 8%
    $ 438.99

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

    $ 403.26 USD
    Free Shipping

    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.

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:340245
    Part#: TMS214380
    In Stock
    Sale - Save 24% $ 426.99

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

    Starting at $ 322.55 USD
    Free Shipping
    Sale - Save 24%
    $ 426.99

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

    Starting at $ 322.55 USD
    Free Shipping
    This cooling overhaul will cover just about everything you could replace on the 325/330'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 325/330i. 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 325/330 cooling hoses, and the BMW antifreeze. This package fits 325i/330i/xi 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 325/330 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 325/330 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 E90 325/330 - 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 N52 engine and an auto transmission:
    2006-2006 E90 BMW 325i 325xi 330i 330xi - Sedan
    2006-2006 E91 BMW 325xi - Wagon


    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.
    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:5498481
    Part#: E46M5X2KT
    In Stock
    Sale - Save 4% $ 474.99

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

    $ 456.76 USD
    Free Shipping
    Sale - Save 4%
    $ 474.99

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

    $ 456.76 USD
    Free Shipping
    Prevent cooling issues and take service of your cooling system one step further with a Turner Motorsport Level 2 Cooling System Maintenance Kit. The experts at Turner have identified all of the common parts that fail on a BMW and included them all in this convenient kit. 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. If the coolant reaches this critical temperature, it is common for thousands of dollars in damage to occur. 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
    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:557232
    Part#: E39M5XBCKT
    In Stock
    Sale - Save 8% $ 352.99

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

    $ 324.07 USD
    Free Shipping
    Sale - Save 8%
    $ 352.99

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

    $ 324.07 USD
    Free Shipping

    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.

    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:338020
    Part#: 17117573781
    In Stock at Vendor
    Sale - Save 2% $ 140.99

    This product was last offered at the strikethrough price on
    04-01-2026

    Starting at $ 137.98 USD
    Free Shipping
    Sale - Save 2%
    $ 140.99

    This product was last offered at the strikethrough price on
    04-01-2026

    Starting at $ 137.98 USD
    Free Shipping
    This coolant reservoir is for the non-M E46 3-series models from 1999-2006 (M3 takes a different expansion tank). We have found that the expansion tanks should be replaced based on age as well as condition. Expansion tanks seem to have a lifespan of less than six years before they show signs of fatigue and wear. Pre-emptively replacing the expansion tank as part of an overall maintenance plan can prevent you from getting stranded from a sudden failure later on. This is the most recent expansion tank design from Hella-Behr, the OEM supplier to BMW. It replaces the original BMW part number 17137787039.

    Other items to consider replacing at the same time are the radiator cap, coolant level sensor, lower radiator hose, coolant temp sensor in the lower hose, and the hose clamps. If your car has an automatic transmission you should also replace the oil cooler thermostat in the radiator frame, which is a common source for leaks.

    This coolant expansion tank fits:

    1999-2006 E46 3 series - 323i, 323Ci, 325i, 325Ci, 325xi, 328i, 328Ci, 330i, 330Ci & 330xi (**no M)
    2004-2008 X3 SAV - X3 2.5, X3 3.0, X3 3.0si
    2000-2005 X5 SAV - X5 3.0
    Show More Show Less


    Packaged by Turner - Corporate Logo
    T#:557311
    Part#: E46NONMPCKT3
    Ships in 3 Business Days
    Sale - Save 2% $ 1,458.99

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

    $ 1,432.16 USD
    Free Shipping
    Sale - Save 2%
    $ 1,458.99

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

    $ 1,432.16 USD
    Free Shipping

    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
    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:557221
    Part#: E39528BCKT
    Ships in 1 Business Day
    Sale - Save 13% $ 259.99

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

    $ 225.86 USD
    Free Shipping
    Sale - Save 13%
    $ 259.99

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

    $ 225.86 USD
    Free Shipping

    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.

    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:338705
    Part#: TMS16592
    Ships in 2 Business Days
    Starting at $ 171.33 USD
    Free Shipping
    Starting at $ 171.33 USD
    Free Shipping
    The oil cooler/heat exchanger for the automatic transmission is one of the most overlooked sections of the 540i and 740i cooling system. The cooler (heat exchanger) is a part of the overall cooling system and uses coolant circulated from the regular cooling system to cool the transmission oil running through this small cooling block. Some of the hoses are shared with the rest of the cooling system as well. The E38/E39 heat exchanger is located along the driver's side frame rail and is accessed from the wheel well. We recommend servicing or cleaning the heat exchanger along with any cooling system overhaul. Or if you're having transmission faults (especially for temperature) you may want to clean the transmission cooler anyway and these hoses will be a nice finishing touch.

    Replacing or cleaning the heat exchanger components could lead to better shifting of the automatic as the cooler itself can become clogged. If you're experiencing harder or hesitating shifts, and the internal transmission temperature is rising without being regulated, the components in this system are the likely cause. Staying on top of the cooling needs of the transmission will help prevent a very costly transmission repair in the future. These hoses are easily replaced and you can clean the heat exchanger easily with brake cleaner and some brushes.

    Included in this handy package are:
  • 11531711381 - transmission cooling hose from water pump to radiator (with t-connector)
  • 11531711385 - transmission cooling hose from radiator to cooler
  • 11531711384 - transmission cooling hose from cooler to water pump
  • 11537511207 - transmission cooling hose from cooler to chassis
  • hose clamp
  • o-ring


    This hose set fits the following BMWs:
    1999-2003 E39 BMW 540i
    1999-2001 E38 BMW 740i 740il
  • Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:557927
    Part#: E46M3BCKT1
    In Stock at Vendor
    Sale - Save 11% $ 675.99

    This product was last offered at the strikethrough price on
    07-15-2026

    $ 599.92 USD
    Free Shipping
    Sale - Save 11%
    $ 675.99

    This product was last offered at the strikethrough price on
    07-15-2026

    $ 599.92 USD
    Free Shipping

    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.

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:339091
    Part#: TMS16426
    Ships in 2 Business Days
    Sale - Save 14% $ 628.99

    This product was last offered at the strikethrough price on
    06-15-2026

    Starting at $ 539.49 USD
    Free Shipping
    Sale - Save 14%
    $ 628.99

    This product was last offered at the strikethrough price on
    06-15-2026

    Starting at $ 539.49 USD
    Free Shipping
    This is a compete cooling system overhaul kit, which includes all of the common Z3 M52 cooling system failure parts bundled into a complete package. This cooling system package is for the 1997-1998 Z3 2.8 Roadster and 1998-2000 MZ3 M Roadster or M Coupe.

    The Z3 cooling system's 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 waterpump (with updated composite impeller and O-ring), thermostat (complete with O-ring), aluminum thermostat housing, profile gasket, radiator cap and new hoses (as pictured).

    Optional items (which can be added below):
    - Upgrade the waterpump to a Stewart/EMP High Performance pump
    - Original BMW antifreeze
    - Add a new coolant expansion tank (known for cracking)

    Buy as a package and save!!

    This cooling system overhaul kit fits the following BMWs:
    1997-1998 Z3 2.8 M52 Roadster
    1998-2000 Z3 M Roadster, M Coupe
    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:557215
    Part#: E36M44BCKT
    Ships on Sep 29, 2026
    Sale - Save 3% $ 252.99

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

    $ 246.54 USD
    Free Shipping
    Sale - Save 3%
    $ 252.99

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

    $ 246.54 USD
    Free Shipping

    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.

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:557231
    Part#: E34525BCKT
    Ships in 10 Business Days
    Sale - Save 13% $ 264.99

    This product was last offered at the strikethrough price on
    02-27-2026

    $ 229.70 USD
    Free Shipping
    Sale - Save 13%
    $ 264.99

    This product was last offered at the strikethrough price on
    02-27-2026

    $ 229.70 USD
    Free Shipping

    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.

    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:557204
    Part#: E36M42BCKT
    Ships on Sep 29, 2026
    Sale - Save 1% $ 211.99

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

    $ 209.01 USD
    Free Shipping
    Sale - Save 1%
    $ 211.99

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

    $ 209.01 USD
    Free Shipping

    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.

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:557244
    Part#: E36BCKT
    In Stock
    Sale - Save 19% $ 277.99

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

    $ 223.95 USD
    Free Shipping
    Sale - Save 19%
    $ 277.99

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

    $ 223.95 USD
    Free Shipping

    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.

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:557247
    Part#: E36BCKT2
    In Stock
    Sale - Save 19% $ 274.99

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

    $ 222.15 USD
    Free Shipping
    Sale - Save 19%
    $ 274.99

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

    $ 222.15 USD
    Free Shipping

    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.

    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:557276
    Part#: N55WTKT2
    Ships on Nov 30, 2026
    Sale - Save 4% $ 865.99

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

    $ 829.18 USD
    Free Shipping
    Sale - Save 4%
    $ 865.99

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

    $ 829.18 USD
    Free Shipping

    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. This kit provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road.

    Kit includes:

    • Genuine BMW Thermostat
    • OEM VDO Electric Water Pump
    • Genuine BMW Auxiliary Water Pump
    • Genuine BMW Antifreeze/Coolant
    • OEM Mounting hardware required for both the thermostat and water pump
    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:557261
    Part#: N55WTKT
    Ships on Nov 30, 2026
    Sale - Save 10% $ 531.99

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

    $ 476.66 USD
    Free Shipping
    Sale - Save 10%
    $ 531.99

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

    $ 476.66 USD
    Free Shipping

    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. This kit provides a single stop for water pump and thermostat replacement needs to save the search and get you back on the road.

    Kit includes:

    • Genuine BMW Thermostat
    • OEM Pierburg Electric Water Pump
    • Genuine BMW Antifreeze/Coolant
    • OEM Mounting hardware required for both the thermostat and water pump
    Show More Show Less


    Packaged by Turner - Corporate Logo
    T#:557246
    Part#: E46M3BCKT
    In Stock
    Sale - Save 8% $ 664.99

    This product was last offered at the strikethrough price on
    07-16-2026

    $ 612.06 USD
    Free Shipping
    Sale - Save 8%
    $ 664.99

    This product was last offered at the strikethrough price on
    07-16-2026

    $ 612.06 USD
    Free Shipping

    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.

    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:554081
    Part#: 11537511580KT3
    Ships on Jan 13, 2027
    Sale - Save 8% $ 62.99

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

    $ 57.81 USD
    Free Shipping
    Sale - Save 8%
    $ 62.99

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

    $ 57.81 USD
    Free Shipping

    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:

    • Thermostat with gasket
    • Thermostat mounting hardware
    • 1 liter of coolant

    This waterpump fits the following BMWs: 
    1992-1999 E36 3 series - 323is, 323ic, 325i, 325is, 325ic, 328i, 328ic, M3 3.0 (S50/US), M3 3.2 (S52) 

    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:338740
    Part#: TMS338740
    Ships on Sep 9, 2026
    Sale - Save 5% $ 1,009.99

    This product was last offered at the strikethrough price on
    07-16-2026

    Starting at $ 957.58 USD
    Free Shipping
    Sale - Save 5%
    $ 1,009.99

    This product was last offered at the strikethrough price on
    07-16-2026

    Starting at $ 957.58 USD
    Free Shipping

    As the E46 M3 gets on in years and mileage, the cooling system will be one of the areas that needs the most attention. We have packaged all of the major cooling components into one overhaul kit:

    • radiator
    • water pump
    • thermostat
    • radiator hoses and clamps
    • gaskets and o-rings

    We have found that the E46 M3 can develop inconvenient cooling issues, even on daily driven street cars. While the infamous radiator and water pump failures of the E36 are a thing of the past, the E46 M3 still has its own complications. The best approach to avoid bigger problems is preventative maintenance. We recommend replacing the water pump before 80,000 miles and the radiator before 100,000 miles. By addressing these problem areas before a failure, you will save yourself a larger repair bill in the future.

    In addition to the standard cooling package items above, there are several other cooling-related components that may make sense to do at the same time:

    • Original BMW coolant
    • fan clutch
    • main serpentine belt and A/C belt
    • Turner Power Pulley Kit (because now is the perfect time!)

    This cooling overhaul package fits:
    2001-2006 E46 BMW M3
     

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:554691
    Part#: FD2PRE95KT
    In Stock
    Sale - Save 17% $ 121.99

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

    $ 101.67 USD
    Free Shipping
    Sale - Save 17%
    $ 121.99

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

    $ 101.67 USD
    Free Shipping

    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.**

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:557319
    Part#: E36PCKT
    In Stock at Vendor
    Sale - Save 7% $ 1,354.99

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

    $ 1,262.69 USD
    Free Shipping
    Sale - Save 7%
    $ 1,354.99

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

    $ 1,262.69 USD
    Free Shipping

    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
    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:554694
    Part#: FD2AFT95KT
    In Stock at Vendor
    Sale - Save 14% $ 141.88

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

    $ 122.04 USD
    Free Shipping
    Sale - Save 14%
    $ 141.88

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

    $ 122.04 USD
    Free Shipping

    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.**

    Show More Show Less

    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

    $ 64.80 USD
    Free Shipping
    Sale - Save 20%
    $ 80.99

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

    $ 64.80 USD
    Free Shipping

    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.**

    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:554692
    Part#: FD3PRE95KT
    In Stock
    Sale - Save 8% $ 250.99

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

    $ 231.01 USD
    Free Shipping
    Sale - Save 8%
    $ 250.99

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

    $ 231.01 USD
    Free Shipping

    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.**

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:557220
    Part#: E6XN52BCKT
    Back Ordered
    Sale - Save 2% $ 685.99

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

    $ 674.53 USD
    Free Shipping
    Sale - Save 2%
    $ 685.99

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

    $ 674.53 USD
    Free Shipping

    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.

    Show More Show Less

    Packaged by Turner - Corporate Logo
    T#:554696
    Part#: FD3AFT95KT
    In Stock at Vendor
    Sale - Save 7% $ 271.22

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

    $ 251.38 USD
    Free Shipping
    Sale - Save 7%
    $ 271.22

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

    $ 251.38 USD
    Free Shipping

    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.**

    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:557315
    Part#: E46MPCKT
    Back Ordered
    Sale - Save 1% $ 2,185.99

    This product was last offered at the strikethrough price on
    07-21-2026

    $ 2,153.33 USD
    Free Shipping
    Sale - Save 1%
    $ 2,185.99

    This product was last offered at the strikethrough price on
    07-21-2026

    $ 2,153.33 USD
    Free Shipping

    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, and a Genuine BMW Motorsport 55*C thermostat, for lower temperature operation and increased cooling of the engine. 

    Additional items included in this kit:

    • ECS Tuning Silicone Replacement Coolant Hoses - For increased reliability over stock rubber hoses
    • ECS Tuning Heavy Duty Aluminum Bleeder Screw
    • 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
    Show More Show Less
    Packaged by Turner - Corporate Logo
    T#:557190
    Part#: E53X5M54BCKT
    Back Ordered
    Sale - Save 5% $ 402.99

    This product was last offered at the strikethrough price on
    02-27-2026

    $ 380.92 USD
    Free Shipping
    Sale - Save 5%
    $ 402.99

    This product was last offered at the strikethrough price on
    02-27-2026

    $ 380.92 USD
    Free Shipping

    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.

    Show More Show Less


    Packaged by Turner - Corporate Logo
    T#:554672
    Part#: E366CYLLITETMSKT
    In Stock
    Sale - Save 9% $ 180.99

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

    $ 164.79 USD
    Free Shipping
    Sale - Save 9%
    $ 180.99

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

    $ 164.79 USD
    Free Shipping

    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

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

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

    $ 1,370.50 USD
    Free Shipping
    Sale - Save 3%
    $ 1,406.99

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

    $ 1,370.50 USD
    Free Shipping
    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.
    Show More Show Less