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BMW Thermostats

BMW thermostats are known to fail, but luckily they typically fail wide open - meaning that your car can still cool. We offer thermostats from various OE suppliers we trust along with upgraded motorsport specific thermostats where applicable to make sure your BMW stays cool on track.
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Water Pump And Thermostat Kit
10X Entries Into Our F80 M3 Sweepstakes
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
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Sale - Save 25%
$ 448.99

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

$ 337.56 USD
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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
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Thermostat Replacement Kit - E9X M3
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554084
Part#: 11537836155KT2
Ships in 2 Business Days
Sale - Save 14% $ 99.99

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

$ 86.04 USD
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Sale - Save 14%
$ 99.99

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

$ 86.04 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.
Thermostat Replacement Kit - E46 M3
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554082
Part#: 11531318274KT2
In Stock
$ 139.99

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

$ 87.99 USD
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$ 87.99 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
  • Thermostat O-Ring
  • 1.5 Liters of coolant

 

This item fits the following BMWs: 
2001-2006 E46 BMW M3 

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Ultimate Water Pump And Thermostat Kit - N54
10X Entries Into Our F80 M3 Sweepstakes
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
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Sale - Save 13%
$ 987.99

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

$ 855.23 USD
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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!)
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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

$ 81.42 USD
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Sale - Save 24%
$ 106.99

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

$ 81.42 USD
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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

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Thermostat Replacement Kit - E39 M5
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554086
Part#: 11537835558KT7
Ships in 2 Business Days
$ 170.99

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

$ 158.99 USD
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$ 158.99 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:

  • Behr thermostat with gasket
  • Thermostat mounting hardware
  • 1 Gal Genuine BMW coolant

 

This thermostat fits the following BMWs: 
1998-2004 E39 BMW M5 

 

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Packaged by Turner - Corporate Logo
T#:340365
Part#: TMS16432
Ships on Jan 13, 2027
Starting at $ 857.54 USD
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Starting at $ 857.54 USD
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This packages covers the major components you would install along with a new water pump or thermostat. On the N54 cars (135i, 335i, 535i) the water pump and theremostat are mounted together. In fact, to get to the thermostat, BMW expects you to remove the water pump. This package covers the whole job. With the electric water pump now an integral part of the efficiency and performance of the engine, staying on top of its maintenance and replacement is the smart thing to do.

Our water pump/thermostat overhaul includes:

  • OEM VDO electric water pump, p/n 11517588885 or 11517632426
  • OEM mounting screws for water pump (set of 3), p/n 11517602123
  • OEM Behr thermostat, p/n 11537549476
  • Original BMW connecting hose from thermostat to water pump, p/n 11537545665
  • Original BMW hose clamps for hose (x 2)
  • BUY AS A PACKAGE AND SAVE $$!

    The water pump on the N54 engine has more cooling responsibilities than ever before. Not only must it provide cooling for the engine, but it's also pumping fluid used to cool the turbocharger oil and automatic transmission oil. The good news is that the pump only works when, and only as much, as it needs to. The engine computer dictates how much fluid needs to be pumped through the system depending on the load. That means the system can actually stop the pump when warmer temperatures are needed. No longer is the pump spinning all the time from an engine-driven belt. The bad news is that it's now an electrical part, so a failure is usually immediate and with no warning. And if the electronics are at fault, there is no way to rebuild or repair it. Fortunately, the engine computer will force a shut down or reduce power if a problem occurs, preventing catastrophic engine damage.

    How to avoid a water pump failure in the future? Replacing the water pump as part of a regular interval schedule will ensure you always have a functioning pump in place. Since this technology is relatively new for BMW, therefore the lifecycle of the pump isn't yet known, we have been recommending replacement every 80-100k miles. This package of OE/OEM parts covers everything with Original BMW coolant offered to finish off the job. A proper bleeding procedure must be followed with the new electric pump.

    This water pump package fits the following BMWs with the N54 engine:
    2007-2010 E60 BMW 535i 535xi 535i xDrive
    2008-2010 E82 BMW 135i
    2011-2012 E82 BMW 1M Coupe
    2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
    2007-2010 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
    2007-2010 E93 BMW 335i - Convertible
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Packaged by Turner - Corporate Logo
T#:554073
Part#: 11537509227KT3
Ships on Feb 24, 2027
$ 103.99 USD
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$ 103.99 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:

  • Mahle-Behr thermostat with gasket
  • Thermostat mounting hardware
  • 1 liter of coolant

Applications:
1999-2003 E39 528i, 525i, 530i sedan, touring wagon (M52TU engine, M54 engine)
1999-2005 E46 323, 328, 325, 330 sedan, coupe, cabrio, touring wagon (M52TU engine, M54 engine)
2004-2005 E60 525i, 530i sedan, touring wagon (M54 engine)
2001-2006 E53 X5 3.0 (M54 engine)
2004-2006 E83 X3 2.5i X3 3.0i (M54 engine)
1999-2002 Z3 2.3. Z3 2.5i, 2.8 Z3 3.0i (M54 engine)
2003-2005 Z4 2.5i, Z4 3.0 (M54 engine)

 

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Thermostat Replacement Kit - E36
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554081
Part#: 11537511580KT3
Ships on Feb 24, 2027
Sale - Save 14% $ 62.99

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

$ 54.14 USD
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Sale - Save 14%
$ 62.99

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

$ 54.14 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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Thermostat Replacement Kit - E39 540i 1999-2003
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:554085
Part#: 11531436386KT3
In Stock
Sale - Save 24% $ 119.99

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

$ 91.11 USD
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Sale - Save 24%
$ 119.99

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

$ 91.11 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:

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

 

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

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

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

$ 186.20 USD
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Sale - Save 2%
$ 189.99

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

$ 186.20 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:

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

 

This item fits the following BMWs: 

1997-1998  E39 BMW  540i

 

 

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

Kit includes:

  • Behr thermostat with O-ring
  • Thermostat mounting hardware
  • 1 Gallon BMW coolant
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Thermostat With Housing - 90C
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:598978
Part#: 11531436386
In Stock
Sale - Save 20% $ 93.99

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

$ 75.06 USD
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Sale - Save 20%
$ 93.99

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

$ 75.06 USD
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A thermostat that opens sooner promotes better cooling in your vehicle. Running a lower temperature thermostat will keep everything much cooler. Keeping the engine cooler will help reduce and improve the life of the seals in your engine, saving you time and money, while also help increase engine performance. A tune might be required to gain the most from this modification, as well as to get your car's ECU accustomed to seeing lower temperatures.
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Mahle-Behr - Corporate Logo
T#:341203
Part#: 11537549476
In Stock
$ 135.99

This product was last offered at the strikethrough price on
07-31-2026

$ 108.99 USD
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$ 108.99 USD
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Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands from the engine. And cooling components are working harder than ever. Engine performance is also dependent on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively. This replacement thermostat fits many of the N51 N52 N53 N54 6 cylinder engines and is an OEM Behr part. 

The thermostat is located along with the water pump on the side of the engine. To gain access for removal you may need to remove the water pump as well. If the water pump is removed you MUST replace its mounting bolts. You can add them from the options below. We also have a bundled package that includes the water pump, mounting screws, connecting hose, and clamps if you want to replace everything together (recommended). 

This thermostat fits the following BMWs:
2008+  E82  BMW 128i 135i
2007+  E9X  BMW 325i 325xi 328i 328xi 330i 335i 335xi
2006+  E60  BMW 525i 525xi 528i 528xi 530i 530xi 535i 535xi
2006+  X3  BMW X3 3.0i X3 3.0si
2006+  Z4  BMW Z4 3.0i Z4 3.0si
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Wahler - Corporate Logo
T#:360524
Part#: 11531318274
In Stock
$ 105.99

This product was last offered at the strikethrough price on
06-25-2026

$ 70.99 USD
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$ 70.99 USD
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Replacement 80* Celcius thermostat for E46 M3, Z3M w S54 engine, Z4M. The thermostat can be replaced on the E46 M3 without removing the water pump. This can save you money if the pump still has life left on it but the thermostat needs to be done now. Symptoms of a bad thermostat include an erratic temp gauge and a fault code. When replacing the thermostat, there are three o-rings that will likely need to be replaced between the thermostat and the water pump housing, and two on the coolant tube going to the head. We also recommend new hoses, clamps, and BMW coolant. Replacement should take about one hour.
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Genuine BMW - Corporate Logo
T#:36100
Part#: 11537598865
In Stock
16% off MSRP $ 194.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 163.95 USD
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16% off MSRP
$ 194.95

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 163.95 USD
Free Shipping
Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands of the engine. And cooling components are working harder than ever. Engine performance is also dependant on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
2014+ F22 BMW M235i M235i xDrive
2014+ F23 BMW M235i
2012+ F30 BMW 335i 335i xDrive - Sedan
2013+ F32 BMW 435i 435i xDrive - Coupe
2013+ F33 BMW 435i Convertible 435i xDrive Convertible- Convertible
2014+ F34 BMW 335i xDrive GT - Gran Tourismo
2014+ F36 BMW 435i Gran Coupe 435i xDrive Gran Coupe
2014+ F15 BMW X5 sDrive35i X5 xDrive35i
2015+ F16 BMW X6 sDrive35i X6 xDrive35i
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Genuine BMW - Corporate Logo
T#:13004
Part#: 11531721966
Ships in 4 Business Days
3% off MSRP $ 115.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 111.99 USD
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3% off MSRP
$ 115.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 111.99 USD
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Genuine BMW Connection Flange -
This item fits the following BMW Chassis:
E30,E36

Fits BMW Engines including:
M42


Genuine BMW - Corporate Logo
T#:360689
Part#: 11537509227
In Stock
Sale - Save 8% $ 169.69

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 156.96 USD
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Sale - Save 8%
$ 169.69

This product was last offered at the strikethrough price on
08-26-2026

$ 156.96 USD
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Wahler - Corporate Logo
T#:360363
Part#: 11537549476
In Stock
Sale - Save 7% $ 97.91

This product was last offered at the strikethrough price on
03-25-2026

$ 91.43 USD
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Sale - Save 7%
$ 97.91

This product was last offered at the strikethrough price on
03-25-2026

$ 91.43 USD
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If your vehicle is experiencing cooling issues, chances are the thermostat is the cause. Common symptoms include a 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.
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BMW N55 3.0L Thermostat Assembly
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:637725
Part#: 11537598865
In Stock
$ 83.42 USD
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$ 83.42 USD
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BMW N55 3.0L Thermostat Assembly is an essential component for maintaining optimal engine temperature in your BMW, ensuring reliable performance and longevity. A common source of cracks and leaks, the thermostat assembly plays a critical role in regulating coolant flow. This high-quality replacement from Turner Motorsport is designed to meet or exceed OEM standards, providing a dependable solution to prevent overheating and maintain your engine's efficiency.

  • Reliable Temperature Regulation: Ensures optimal engine temperature for peak performance.
  • High-Quality Replacement: Meets or exceeds OEM standards, reducing the risk of cracks and leaks.
  • Enhanced Durability: Designed to withstand the demands of the N55 3.0L engine.
  • Prevents Overheating: Critical for maintaining engine efficiency and longevity.
  • Perfect Fit: Engineered for easy installation and compatibility with your BMW N55 3.0L engine.
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Genuine BMW - Corporate Logo
T#:12502
Part#: 11531318274
In Stock
16% off MSRP $ 147.44

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 123.15 USD
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16% off MSRP
$ 147.44

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 123.15 USD
Free Shipping
GENUINE BMW THERMOSTAT - E46 M3, MZ3 (S54), MZ4. This is just the thermostat itself and does not include the housing o-ring or any others that are advised for replacement. See thermostat kit or our water pump kit for a complete package.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
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Wahler - Corporate Logo
T#:14602
Part#: 11537601158
In Stock
$ 121.98

This product was last offered at the strikethrough price on
07-27-2026

$ 109.52 USD
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$ 109.52 USD
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Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands from the engine. And cooling components are working harder than ever. Engine performance is also dependent on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively. This replacement thermostat fits many of the N55 6 cylinder engines and is an Wahler part. The thermostat is located along with the water pump on the side of the engine. To gain access for removal you may need to remove the water pump as well. If the water pump is removed you MUST replace its mounting bolts. You can add them from the options below. We also have a bundled package that includes the water pump, mounting screws, connecting hose, and clamps if you want to replace everything together (recommended).

Manufacturing OE-grade replacement cooling parts is Wahler’s specialty. When you need to replace a component in your vehicle’s water system, high grade, and long-lasting parts from Wahler ensure the job is done properly the first time.

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
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Mahle-Behr - Corporate Logo
T#:341098
Part#: 11537509227
Ships in 1 Business Day
$ 104.39

This product was last offered at the strikethrough price on
08-14-2026

$ 104.28 USD
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$ 104.28 USD
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Replacement stock MAP thermostat with plastic housing and gasket for E46, E39, E60, X5, Z4 - M54 engine, M52TU engine. Your car may still operate fine according the instrument display but the electrically-operated thermostat may be going bad. This new thermostat includes the thermostat gasket, ready to install in your BMW.

Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.

Applications:
1999-2003 E39 528i, 525i, 530i sedan, touring wagon (M52TU engine, M54 engine)
1999-2005 E46 323, 328, 325, 330 sedan, coupe, cabrio, touring wagon (M52TU engine, M54 engine)
2004-2005 E60 525i, 530i sedan, touring wagon (M54 engine)
2001-2006 E53 X5 3.0 (M54 engine)
2004-2006 E83 X3 2.5i X3 3.0i (M54 engine)
1999-2002 Z3 2.3. Z3 2.5i, 2.8 Z3 3.0i (M54 engine)
2003-2005 Z4 2.5i, Z4 3.0 (M54 engine)

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Mahle-Behr - Corporate Logo
T#:341080
Part#: 11531436386
In Stock
$ 173.99 USD
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$ 173.99 USD
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Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel). This thermostat fits BMW E39 540i 99-03 E38 740i 99-01 X5 4.4i 4.6is 99-2003 with M62 engine.

Hailing from Stuttgart, Mahle-Behr specializes in automotive cooling systems. From air conditioning to engine cooling M-B has you covered with OE-quality replacement parts.

This item fits the following BMWs:
1999-2001  E38 BMW  740i 740il
1999-2003  E39 BMW  540i
1999-2003  E53 BMW  X5 4.4i X5 4.6is
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Genuine BMW - Corporate Logo
T#:2255
Part#: 11537586885
In Stock
8% off MSRP $ 135.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 124.99 USD
Free Shipping
8% off MSRP
$ 135.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 124.99 USD
Free Shipping
Don't take chances! Proper maintenance is required to keep your car performing at peak levels. The thermostat basically controls when your car will overheat. Don't let it fail on you.


Bremmen Parts - Corporate Logo
T#:588457
Part#: 115375345211KT
In Stock
Sale - Save 18% $ 64.99

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

$ 53.59 USD
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Sale - Save 18%
$ 64.99

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

$ 53.59 USD
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MINI R5X R6X Thermostat Housing W/ Thermostat Kit

Upgrade your MINI's cooling system with the MINI R5X R6X Thermostat Housing W/ Thermostat Kit. Commonly known as the thermostat neck or housing, this crucial part is responsible for regulating coolant flow to the pressure tank from the highest point on the head. Symptoms of a worn-out thermostat housing include cracking around the gasket seal, leading to leaks.

This comprehensive kit includes:

  • Profile gasket
  • Temp sensor
  • Two O-rings
  • Clip and bleeder screw

Additionally, this kit comes with a generous 3-year warranty, providing peace of mind for your MINI's cooling system.

Ensure optimal cooling system performance and prevent leaks with the MINI R5X R6X Thermostat Housing W/ Thermostat Kit.

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Genuine BMW - Corporate Logo
T#:36175
Part#: 11537838480
Ships in 2 Business Days
6% off MSRP $ 243.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 228.99 USD
Free Shipping
6% off MSRP
$ 243.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 228.99 USD
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Genuine BMW Thermostat Housing -
This item fits the following BMW Chassis:
E90,E92,E93

Fits BMW Engines including:
S65

Genuine BMW - Thermostat with housing and gasket - 11537644811 ...
For vehicles with the Gen1 B48/B46 only - not compatible with the later Gen2 B48 (TU) engines
Genuine BMW - Corporate Logo
T#:539226
Part#: 11537644811
In Stock
8% off MSRP $ 602.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 552.00 USD
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8% off MSRP
$ 602.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 552.00 USD
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11537644811 - Thermostat with housing and gasket. The thermostat controls the flow of coolant based on temperatures in the engine. This is a crucial component to your cooling system and making sure your car is operating properly.
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Mahle-Behr - Corporate Logo
T#:363991
Part#: 11537633476
In Stock at Vendor
$ 107.89 USD
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$ 107.89 USD
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No heat? Overheating? Time for a cooling system service.

Genuine BMW - Corporate Logo
T#:393605
Part#: 11538671516
Ships in 2 Business Days
8% off MSRP $ 194.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 178.99 USD
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8% off MSRP
$ 194.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 178.99 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.
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Genuine BMW - Corporate Logo
T#:222844
Part#: 11537642854
Ships in 2 Business Days
8% off MSRP $ 603.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 552.99 USD
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8% off MSRP
$ 603.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 552.99 USD
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Genuine Bmw Heat Management Module - 11537642854

Genuine BMW - Corporate Logo
T#:2303
Part#: 11531318274-K
In Stock
$ 149.25 USD
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$ 149.25 USD
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Replacement stock thermostat for E46 M3, Z3M w S54 engine, Z4M.The thermostat can be replaced on the E46 M3 without removing the water pump. This can save you money if the pump still has life left on it but the thermostat needs to be done now. Symptoms of a bad thermostat include an erratic temp gauge and a fault code. When replacing the thermostat, there are three o-rings that will likely need to be replaced between the thermostat and the water pump housing, and two on the coolant tube going to the head. We also recommend new hoses, clamps, and BMW coolant. Replacement should take about one hour.

Note: even though this can be done without replacing the water pump, the job involves removing the same items to access this area. And opening the thermostat housing will spill a lot of coolant. In other words, if you don't replace the water pump at the same time, you're going to repeat this process when the pump needs replacing. We offer a complete water pump overhaul package that covers everything you need if you want to it all at once. You can the thermostat to that package and get everything without any duplicate parts. Click here for the E46 M3 water pump kit.

On S54 engines (E46 M3, MZ3, Z4 M) there is a flanged head bolt going into the cylinder head, behind the thermostat cover. This holds the left side timing chain guide rail in place and if it's loose or falls out you could have a very serious engine failure to deal with. Make sure to check this bolt while you have the thermostat cover off. You only need to make sure it's tight. But if it's come loose you may want to replace the seal ring and use a small touch of oil-resistant thread sealer.

This item fits the following BMWs:
2000-2001 E46 3 Series M3 M3 Convertible 2000-2006
2001-2002 Z3 Roadster / Coupe Z3 M Roadster Z3 M Coupe w S54 Engine
2006-2008 E86 E86 Z4 Z4 M Roadster Z4 M Coupe
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Genuine BMW - Corporate Logo
T#:3923
Part#: 11531315537
Back Ordered
3% off MSRP $ 619.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 599.99 USD
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3% off MSRP
$ 619.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 599.99 USD
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Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. High-revving, spirited driven cars like the E30 M3 require the tip-top condition to perform well. The cooling system of the S14 one of those critical systems. This thermostat fits all 1987, 1988, 1989, 1990, and 1991 M3 (E30 chassis with S14 engine). Genuine BMW.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
1987-1991 E30 BMW M3
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Genuine BMW - Corporate Logo
T#:546143
Part#: 11538606278
Ships in 2 Business Days
8% off MSRP $ 84.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 77.99 USD
Free Shipping
8% off MSRP
$ 84.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 77.99 USD
Free Shipping
Hose coming off the small fitting on the thermostat. Replacement coolant hose for damaged or worn items. Dont forget to change all associated parts when doing a cooling service, or to fix a leak.

Wahler - Corporate Logo
T#:374361
Part#: N524TSTKT1
In Stock
$ 112.99

This product was last offered at the strikethrough price on
03-26-2026

$ 111.99 USD
Free Shipping
$ 111.99 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:12638
Part#: 11531730470
In Stock
3% off MSRP $ 151.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 146.99 USD
Free Shipping
3% off MSRP
$ 151.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 146.99 USD
Free Shipping

This is the stock aluminum thermostat housing for cars with the M20 6 cylinder engine - 325e, 325i, 528e, 525i. This is the side of the housing that mounts to the cylinder head and has openings for the various coolant / engine temperature sensors. There are 4 ports for sensors so check your existing housing for the sensor layout.

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.
 

This item fits the following BMWs:
1984-1991 E30 BMW 325e 325es 325i 325ic 325is 325ix
5/1982-1988 E28 BMW 528e
1989-1990 E34 BMW 525i

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Genuine BMW - Corporate Logo
T#:348485
Part#: 17111437362
Ships in 2 Business Days
4% off MSRP $ 134.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 130.00 USD
Free Shipping
4% off MSRP
$ 134.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 130.00 USD
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Ensure optimal performance and temperature regulation in your BMW's automatic transmission with the Turner Motorsport Genuine Automatic Transmission Thermostat, part number 17111437362. This thermostat serves as a crucial component of the heat exchanger system, maintaining proper fluid temperatures for smooth transmission operation. Typically replaced during expansion tank maintenance, this Genuine BMW part guarantees reliability and compatibility with your vehicle.

Key Benefits:

  • Genuine BMW quality assurance
  • Maintains proper transmission fluid temperatures
  • Ensures smooth transmission operation
  • Direct replacement for OEM thermostat
  • Compatible with expansion tank replacement
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Genuine BMW - Corporate Logo
T#:377551
Part#: 11537836155KT
Ships in 2 Business Days
$ 176.99 USD
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$ 176.99 USD
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This kit includes all of the Genuine BMW components you need to replace your thermostat.
Genuine BMW - Corporate Logo
T#:348481
Part#: 11537836155
Ships in 2 Business Days
15% off MSRP $ 150.84

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 127.99 USD
Free Shipping
15% off MSRP
$ 150.84

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 127.99 USD
Free Shipping
Replacement stock thermostat for E90, E92, E93 M3 - S65 engine- E60 M5 E63 M6 with S85 engine. Your car may still operate fine according to the instrument display but the electrically-operated thermostat may be going bad.
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Genuine BMW - Corporate Logo
T#:360697
Part#: 11537835558
In Stock
3% off MSRP $ 147.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 142.99 USD
Free Shipping
3% off MSRP
$ 147.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 142.99 USD
Free Shipping

Genuine BMW - Corporate Logo
T#:360668
Part#: 11531436386
In Stock
3% off MSRP $ 200.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 193.99 USD
Free Shipping
3% off MSRP
$ 200.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 193.99 USD
Free Shipping

Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. The sensor on the housing is also used by the engine computer to set the fuel mapping on the engine. A faulty sensor or thermostat will lead to the engine running rich (too much fuel). This thermostat fits BMW E39 540i 99-03 E38 740i 99-01 X5 4.4i 4.6is 99-2003 with M62 engine. 

This item fits the following BMWs: 
1999-2001  E38 BMW  740i 740il 
1999-2003  E39 BMW  540i 
1999-2003  E53 BMW  X5 4.4i X5 4.6is

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Wahler - Corporate Logo
T#:1211191
Part#: 11518601366
In Stock
$ 65.99 USD
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$ 65.99 USD
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Genuine BMW - Corporate Logo
T#:367096
Part#: 11538635689
Ships in 2 Business Days
8% off MSRP $ 177.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 162.99 USD
Free Shipping
8% off MSRP
$ 177.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 162.99 USD
Free Shipping

N20 thermostats are prone to failure - replace yours today with a Genuine BMW replacement.

Turner Motorsport is proud to be your source for Genuine BMW parts.

 


Genuine BMW - Corporate Logo
T#:578628
Part#: 11531730470K1KT
In Stock
$ 224.99 USD
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$ 224.99 USD
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Genuine BMW - Corporate Logo
T#:366923
Part#: 11517805811
Ships in 2 Business Days
8% off MSRP $ 120.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 110.99 USD
Free Shipping
8% off MSRP
$ 120.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 110.99 USD
Free Shipping
Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. This thermostat fits BMW E90 335d and E70 X5 xDrive35d with the diesel engine. 

Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self evident in the quality and vast amount of applications they service. With more than 34,000 repair solutions for cars and commercial vehicles you can be sure Febi has you covered. 
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Thermostat Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:591532
Part#: 11538674895KT1KT
In Stock
Sale - Save 14% $ 70.99

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

$ 61.32 USD
Free Shipping
Sale - Save 14%
$ 70.99

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

$ 61.32 USD
Free Shipping

Genuine BMW - Corporate Logo
T#:360694
Part#: 11537549476
In Stock
16% off MSRP $ 316.79

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 265.77 USD
Free Shipping
16% off MSRP
$ 316.79

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 265.77 USD
Free Shipping

Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands from the engine. And cooling components are working harder than ever. Engine performance is also dependent on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively. This replacement thermostat fits many of the N51 N52 N53 N54 6 cylinder engines and is an OEM Behr part.  

The thermostat is located along with the water pump on the side of the engine. To gain access for removal you may need to remove the water pump as well. If the water pump is removed you MUST replace its mounting bolts. You can add them from the options below. We also have a bundled package that includes the water pump, mounting screws, connecting hose, and clamps if you want to replace everything together (recommended).  

For the following BMW engines:
N54 N52

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Genuine MINI - Corporate Logo
T#:393397
Part#: 11538674895
In Stock
19% off MSRP $ 212.67

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 171.99 USD
Free Shipping
19% off MSRP
$ 212.67

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 171.99 USD
Free Shipping

This Genuine MINI part is typically referred to as the thermostat neck / housing, this part mounts on the highest point on the head and controls the flow back to the pressure tank. Cracking, which usually occurs around the gasket seal and leaks, are symptoms that it’s worn out. Up to 7/2012 production will need adapter   12518611289  .   Production  7/2012 - 2/2013 will need adapter  12518614952 .  2/2013 + need no adapter. 

This is usually found by a blue coolant pooling on top of the transmission housing leaking from the thermostat itself. You will need to replace this asap as you can overheat and cook the engine. 

This kit includes:

  • Profile gasket
  • O-ring
  • Vent screw
  • Two seals and a bleeder screw
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Genuine BMW - Corporate Logo
T#:360690
Part#: 11537511083
Ships in 2 Business Days
3% off MSRP $ 107.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 104.99 USD
Free Shipping
3% off MSRP
$ 107.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 104.99 USD
Free Shipping


Genuine MINI - Corporate Logo
T#:546869
Part#: 11538699290
In Stock
15% off MSRP $ 243.36

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 205.96 USD
Free Shipping
15% off MSRP
$ 243.36

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 205.96 USD
Free Shipping
Genuine BMW - Corporate Logo
T#:360235
Part#: 11537601158
In Stock
9% off MSRP $ 325.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 297.99 USD
Free Shipping
9% off MSRP
$ 325.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 297.99 USD
Free Shipping
Engine running a little hot or is the temp gauge not telling you anything? The thermostat might be the likely problem. Many cooling issues start with the thermostat. This is electronically controlled by the engine computer based on the cooling demands from the engine. And cooling components are working harder than ever. Engine performance is also dependent on temperature - as temperatures rise and pass a certain threshold the engine computer will begin reducing power. Stay on top of your cooling maintenance by replacing critical components preventatively. This replacement thermostat fits many of the N55 6 cylinder engines and is an Wahler part. The thermostat is located along with the water pump on the side of the engine. To gain access for removal you may need to remove the water pump as well. If the water pump is removed you MUST replace its mounting bolts. You can add them from the options below. We also have a bundled package that includes the water pump, mounting screws, connecting hose, and clamps if you want to replace everything together (recommended).

When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

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
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