BMW Cooling System Parts & Accessories for BMW E36 (1992-1998) M3

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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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Turner Motorsport HD Aluminum Coolant Expansion Tank Kit - M50/M52/S5...
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T#:9998526
Part#: 008348LA01BKT
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Our Turner Motorsport's full aluminum expansion tank was designed and engineered in house to help with the weak point in your E36 cooling system. The coolant expansion tank goes through heat cycles over and over again from regular driving, it is important that your expansion tank is doing its job to retain coolant to keep your engine operating temperatures down and keep your engine bay clean. Not only is this a major upgrade but also a great maintenance item to replace. Our expansion tank was designed to fit the OEM hoses for an easy install and comes with all the upgraded items you will need for a clean install,

If your E36 needs a new expansion tank, make sure this is the last expansion tank you ever need to buy. Our coolant expansion tank has a full aluminum construction and wrinkle black powder coat for durability. Expansion tank kit comes with all the accessories you need to replace your expansion tank once, and never have to worry about it again.

Aluminum Coolant Expansion Tank Features:

- Maintains stock coolant capacity and expansion volume

- Designed to maintain OE coolant elevation, preventing air pockets

- Baffled tank ensures that air pockets cannot be introduced during aggressive driving and provides accurate coolant level reading

- Carefully designed bleed passage prevents the introduction of air as the engine cools

- Turner engraved internal fill level

- TIG welded 5052 aluminum construction

- All bungs are machined to fit factory hose ends

Kit contents:

Turner Aluminum Expansion Tank
Coolant level sensor
Expansion tank cap
Heavy duty bleeder screw
Flared coolant pressure release line
Hardware for installation

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Heavy Duty Transmission Crossmember - E36 Getrag 420G Swap
For six-speed swapped, Getrag 420G-equipped vehicles only.
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Turner Motorsport - Corporate Logo
T#:49508931
Part#: 057078LA01
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$ 142.49 USD
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$ 189.99

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$ 142.49 USD
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The 6-speed Getrag 420G transmission, found in the European E36 M3 Evolution and E46 M3, has become an increasingly popular swap amongst E36 owners. Its increased strength, longevity, and overdrive sixth gear make it a great choice for both track cars and daily drivers. Unfortunately, many of the components needed to complete this transplant have become hard to source. Despite increased demand from enthusiasts, BMW has blocked the sale of European E36 M3 parts into North America.

Recognizing this issue, we set out to develop a replacement for the unavailable, 420G-specific transmission crossbrace. Our initial investigation revealed that the factory cast aluminum construction was failure-prone, so durable 5GA 1018 steel was chosen to provide a lasting upgrade. The Turner Motorsport Heavy-Duty Transmission Crossmember is finished in a brilliant silver powder coat to resist corrosion and maximize appearance. Despite being much stronger than the factory crossmember, our design is dimensionally identical, ensuring a perfect fit with your six-speed swap.

Design:

Manufactured from durable 5GA 1018 steel - much stronger than OEM cast aluminum construction Finished in brilliant silver powder coating for maximum corrosion resistance Steel gussets are welded to the main bracket for added strength and power-holding capability Integrated locating dowels prevent bushing rotation and ensure proper alignment under load Dimensionally identical to the OEM part - fully compatible with OE-style bushings and factory hardware Features & Benefits:

Direct replacement for Genuine European BMW part number 23702227892 Finished in brilliant silver powder coating for maximum corrosion resistance Retains factory mounting points and driveline geometry for hassle-free installation Product Development:

Our Heavy Duty Transmission Crossmember was designed, engineered, tested, and quality inspected by our Research and Development team. We strive for nothing but the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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Complete Cooling System Overhaul Package - 1992-1999 E36 325i/328i/M3...
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Packaged by Turner - Corporate Logo
T#:338684
Part#: TMS2003
Ships in 1 Business Day
Sale - Save 9% $ 668.99

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

Starting at $ 611.56 USD
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This is a compete cooling system overhaul kit, which includes all of the common E36 cooling system parts bundled into a complete package. The basic overhaul includes: water pump, radiator, radiator hoses, and thermostat. We bundled these together with a package discount for your convenience and savings. Additional items are also available to better cover your cooling system repair. Contact us if you need any other E36 cooling system parts.

The original E36's primary cooling components were prone to failure within 60k miles (or less in many cases). With better materials over the years we've seen that interval increase and you can now count on your water pump and radiator lasting at least 100,000 miles. That doesn't mean you can set aside preventaive maintenance. 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.

Top Turner Tip!
The very earliest E36s had infamous cooling system failures. But those are a thing of the past! We've got the best combination of parts to ensure a bulletproof E36 cooling system and it doesn't have to cost an arm and a leg. Our basic cooling package (OEM radiator and OE BMW water pump with composite impeller) is much better quality than what was available 20 years ago. And we can upgrade the system with full aluminum radiators, silicone hoses, and a stronger water pump. There are no more excuses for a weak E36 cooling system.

Basic Kit Contents:
17111469179, radiator (OEM Behr)
11517527799, water pump (OE BMW)
11537511580, 88°C thermostat (OEM Behr/Hella)
11531708499, upper radiator hose (OEM Rein/CRP)
11531726344, lower radiator hose (OEM Rein/CRP)
17111742231, expansion tank cap (OEM Behr/Hella)

Cooling Kit Options:
E36 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.
E36 Radiators
(click to expand)
The stock radiator and fan combination has no downside in capacity. But where it lacks is in durability. The plastic tanks and hose necks are prone to cracking and then leaking. If you notice ANY greenish-white staining on the plastic then it's a sure sign of a crack. To avoid the plastic failures altogether, move up to a full aluminum radiator.

The MZ3 radiator has a thicker core and more capacity. Any time you can store the coolant away from the engine the better it will be. It will have less heat soak and lower overall temperatures.
The budget aluminum radiator is the same size as stock but obviously doesn't have the plastic.
The Fluidyne was designed with input from our own techs and race team. It's our go-to radiator for racing and track use.
E36 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!
E36 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:
1992-1999 E36 BMW 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
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Turner Electric Fan Conversion - E36 BMW (09/1995+)
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Packaged by Turner - Corporate Logo
T#:554687
Part#: EFANCON1KT
In Stock at Vendor
$ 368.99

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

$ 367.99 USD
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$ 367.99 USD
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Looking to free up horsepower and upgrade your cooling? Then this Electric Fan Conversion kit is the perfect choice! The fan and clutch that connect to the water pump add additional rotating mass to the drive line. By removing them and converting your system to an electric fan, the engine has to do less work, giving you that extra little bit of power. In this kit we include a lower temperature thermostat, coolant additive, and low temperature fan switch that engages the electric fan at a lower temperature, keeping your engine cool and lowering the drag and unneeded weight from the front end of your BMW.

Included in this kit:

  • 80 degree Celsius thermostat
  • 1 liter of Genuine BMW coolant
  • Water Wetter coolant additive
  • Low-temperature coolant temperature sensor/switch
  • 16 inch Electric fan 
  • Electric fan mounting kit
  • Fan controller kit with probe sensor 
  • Fan delete nut

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

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Performance Water Pump & Thermostat Kit - BMW M50 M52
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Packaged by Turner - Corporate Logo
T#:30397440
Part#: 11517527799KT2
In Stock
$ 357.99

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

$ 342.99 USD
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$ 342.99 USD
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BMW vehicles are known for their robust performance, but the water pump is a notorious weak spot, often needing replacement every 60,000 miles.

During this service, it's wise to also swap out the thermostat to maintain the efficiency of your vehicle's cooling system. Turner Motorsport simplifies this process with our expertly curated Water Pump & Thermostat Replacement Kit.

This premium kit centers around the renowned EMP Stewart high-performance water pump--a favorite among BMW enthusiasts for its exceptional design. Featuring a stainless steel impeller, this pump enhances coolant flow by 20%. Complementing this is a low-temperature 68°C (154.4°F) Mishimoto thermostat, an upgraded aluminum thermostat housing, and Redline Water Wetter coolant additive. Together, these components make for the ultimate cooling system upgrade for your E36, E39, or Z3!

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Coolant Expansion Tank - E36/E39/Z3 6 cylinder 1992-1998
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T#:338018
Part#: 17111723520
In Stock at Vendor
$ 97.99

This product was last offered at the strikethrough price on
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This high quality BEHR brand expansion tank is used on M50, M52, S50 and S52 engines, and is a common failure item on all E36 3 series with 6 cylinder engines (325/328/323 and M3) 1992-1999, Z3 with 2.8 liter, MZ3 Roadster/Coupe (S52), and E39 528i from 1997-1998. BEHR was the original equipment supplier to BMW, so you know the BEHR made expansion tank will be the highest quality available. Be leary of competitors selling this part for less -- is it a BEHR? Probably not. We only carry the BEHR brand expansion tank as it is the only one we use in our own BMWs.

If you are overhauling your coolant system, now is the time to consider preventative replacing this expansion tank. These are known to go bad, causing a leak which can leave you stranded. 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.

Need a new coolant level sensor too? If your coolant level sender is bad, your on board computer will constantly display a "low coolant" message (unless your coolant is actually low...). If you're replacing your expansion tank, now is a great time to replace this failure prone sensor. If you want a new coolant level sensor, simply choose from the option below. Because there are different sensors for different year/model BMWs, please be as specific as possible when you give us your car info during checkout (model, year, production date). Thanks!


This item fits the following BMWs:
1992-1998 E36 BMW 323ic 325i 325is 325ic 328i 328is 328ic M3
1997-1998 E39 BMW 528i
1997-1998 Z3 BMW Z3 2.8
1998-2000 Z3 BMW M Roadster M Coupe (S52)
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Basic Cooling System Service Kit - E36 S50/M50 (06/1995+), S52/M52 (0...
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Packaged by Turner - Corporate Logo
T#:557244
Part#: E36BCKT
In Stock
Sale - Save 16% $ 277.99

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

$ 234.12 USD
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Sale - Save 16%
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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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Basic Cooling System Service Kit - E36 S50/M50 (up to 06/1995), S52/M...
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Packaged by Turner - Corporate Logo
T#:557247
Part#: E36BCKT2
In Stock
Sale - Save 16% $ 274.99

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

$ 232.32 USD
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Sale - Save 16%
$ 274.99

This product was last offered at the strikethrough price on
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$ 232.32 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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Thermostat Replacement Kit - E36
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Packaged by Turner - Corporate Logo
T#:554081
Part#: 11537511580KT3
Ships on Jan 4, 2027
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$ 57.73 USD
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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:

  • 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) 

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Turner Basic Fan Delete Kit - E36 (up to 09/1995)
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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

$ 64.69 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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Turner Comprehensive Fan Delete Kit - E36 (up to 09/1995)
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Packaged by Turner - Corporate Logo
T#:554691
Part#: FD2PRE95KT
In Stock
Sale - Save 1% $ 121.99

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

$ 120.83 USD
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Sale - Save 1%
$ 121.99

This product was last offered at the strikethrough price on
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$ 120.83 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:
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 Basic Fan Delete Kit - E36 (09/1995+)
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Packaged by Turner - Corporate Logo
T#:554693
Part#: FD1AFT95KT
In Stock at Vendor
$ 104.26

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

$ 87.71 USD
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$ 87.71 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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