BMW Thermostats

OEM Wahler Thermostat With Housing - E46 E53 E60 E83 M54

T#:341054

Part#: 11537509227

In Stock

$ 71.99 USD

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Stop leaks before they start with this new Thermostat With Housing from Wahler. Despite the fact that most BMW models are brilliant, most have common issues that can plague you during your ownership of the car. This part is one of those issues, as they are known to crack over time. This replacement part is perfect stop a crack and possibly a leak before it starts.

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OEM Wahler 80 Degree Thermostat - E46 M3, MZ3 S54, Z4 M

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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Mahle-Behr Thermostat - 79Âº C - E34, E39, E52

T#:341209

Part#: 11537835558

Ships in 1 Business Day

$ 74.00

This product was last offered at the strikethrough price on
06-05-2026

$ 61.49 USD

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$ 61.49 USD

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Includes sealing o-ring

Wahler Thermostat Assembly - BMW N55 3.0L

T#:39261790

Part#: 11537598865

In Stock

$ 147.93 USD

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$ 147.93 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.

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Thermostat - 80C

T#:594831

Part#: 11531713040

In Stock

$ 49.61

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

$ 36.99 USD

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$ 36.99 USD

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OEM Wahler Thermostat Assembly - E60/61 E82/88 E9X Z4 N51/N52 ...

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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$ 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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OEM Wahler Thermostat - E82 E9X E84 E70 E71 with N55 engines ...

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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Wahler Thermostat - 105C

T#:369356

Part#: 11537586885

In Stock

$ 133.99

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

$ 72.99 USD

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$ 72.99 USD

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Includes housing and sealing o-ring

Thermostat Replacement Kit

T#:374361

Part#: N524TSTKT1

In Stock

$ 112.99

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

$ 111.99 USD

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$ 111.99 USD

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Wahler Thermostat - 88ï¿½C - E30, E34, E36, Z3

T#:369466

Part#: 11537511580

In Stock

$ 52.99

This product was last offered at the strikethrough price on
06-19-2026

$ 51.99 USD

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$ 51.99 USD

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Common point of failure in the cooling system.

Thermostat

T#:1211191

Part#: 11518601366

In Stock

$ 65.99 USD

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$ 65.99 USD

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Rein Thermostat - 88ï¿½C - E30, E34, E36, Z3

2X Entries Into Our F80 M3 Sweepstakes

T#:591800

Part#: 11537511580

In Stock at Vendor

Sale - Save 5% $ 37.99

This product was last offered at the strikethrough price on
08-31-2026

$ 36.09 USD

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$ 37.99

This product was last offered at the strikethrough price on
08-31-2026

$ 36.09 USD

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Common point of failure in the cooling system.

Thermostat Housing W/ Thermostat Kit

2X Entries Into Our F80 M3 Sweepstakes
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:599063

Part#: 11538674895

In Stock

Sale - Save 5% $ 109.99

This product was last offered at the strikethrough price on
08-31-2026

$ 104.49 USD

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$ 109.99

This product was last offered at the strikethrough price on
08-31-2026

$ 104.49 USD

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Thermostat Housing W/ Thermostat Kit

T#:567822

Part#: 11538674895

Ships in 1 Business Day

$ 181.30 USD

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$ 181.30 USD

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Wahler Performance Thermostat - 75*C - M42, M50, M52, S50, S52 ...

T#:54388511

Part#: 11537511580

Ships in 1 Business Day

$ 59.99 USD

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$ 59.99 USD

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75°C variant is specifically calibrated for track racing, forced-induction builds, or hot-climate competitive environments

Thermostat With Housing

2X Entries Into Our F80 M3 Sweepstakes

T#:582356

Part#: 11537509227

Ships in 3 Business Days

Sale - Save 5% $ 89.99

This product was last offered at the strikethrough price on
08-31-2026

$ 85.49 USD

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Sale - Save 5%

$ 89.99

This product was last offered at the strikethrough price on
08-31-2026

$ 85.49 USD

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Stop leaks before they start with this new Thermostat With Housing from Rein.

Thermostat With Housing

T#:594781

Part#: 11537605431

Ships in 2 Business Days

$ 128.36 USD

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$ 128.36 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.

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Rein Thermostat With Housing 88C - E70, E90

2X Entries Into Our F80 M3 Sweepstakes

T#:555019

Part#: 11517805811

In Stock at Vendor

Sale - Save 6% $ 63.99

This product was last offered at the strikethrough price on
08-31-2026

$ 59.95 USD

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Sale - Save 6%

$ 63.99

This product was last offered at the strikethrough price on
08-31-2026

$ 59.95 USD

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Rein Thermostat With Housing 88C is designed to maintain precise engine temperature control in your vehicle's cooling system. This premium thermostat, featuring an 88°C temperature rating, ensures optimal cooling performance by regulating coolant flow, preventing overheating, and enhancing overall engine efficiency. Built with a durable housing, this thermostat is an ideal replacement for your factory part, offering reliable fitment and long-lasting performance.

Available at Turner Motorsport, the Rein Thermostat With Housing 88C is engineered to withstand extreme conditions, ensuring consistent operation even under heavy loads. This OE-quality component is a must-have for maintaining your car’s peak performance and fuel efficiency.

88°C thermostat for precise engine temperature regulation
Integrated housing for easy installation and superior durability
Prevents engine overheating and improves cooling system efficiency
Designed for a direct fit and easy replacement
Available at Turner Motorsport, your trusted source for automotive parts

Upgrade your vehicle’s cooling system with the Rein Thermostat With Housing 88C and enjoy enhanced engine performance and longevity.

In German, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the world’s finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust.

Includes gasket and O-rings

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Wahler Thermostat - E70, E71

T#:362194

Part#: 11537550172

Ships in 1 Business Day

$ 110.65 USD

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$ 110.65 USD

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Replaces failed thermostat or as preventative maintenance for your cooling system

Thermostat With Housing

T#:594783

Part#: 11537550172

Ships in 2 Business Days

$ 135.68

This product was last offered at the strikethrough price on
09-01-2026

$ 135.00 USD

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$ 135.00 USD

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Overheating your N52 or N54 engine can be detrimental to the longevity of your engine.

Thermostat - MINI Cooper S R52 R53

T#:2257

Part#: 11531485847

In Stock

52% off MSRP $ 43.68

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

$ 20.99 USD

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52% off MSRP

$ 43.68

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

$ 20.99 USD

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Don't take chances! Proper maintenance is required to keep your MINI performing at peak levels. The thermostat basically controls when your car will overheat. This thermostat fits MINI Cooper S R52 R53 with supercharged engine.

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:
2002-2006 R53 MINI MINI Cooper S
2003-2007 E52 MINI MINI Cooper S Convertible

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Mahle-Behr Thermostat - 92C - E34, E36, E39

T#:12476

Part#: 11537511083

Ships in 8 Business Days

$ 29.99

This product was last offered at the strikethrough price on
05-22-2026

$ 27.65 USD

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$ 27.65 USD

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OEM BMW THERMOSTAT:115040

Thermostat - 80°C

T#:594727

Part#: 11531713040

Ships on Sep 18, 2026

$ 35.99 USD

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$ 35.99 USD

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The thermostat on your vehicle controls the flow of coolant based on temperature. When you just start your engine, the thermostat remains closed to accelerate the warm up process. After a few minutes, it opens up to allow the warm fluid to flow. If your vehicle is overheating but not blowing warm air from the heater, the problem is more than likely your thermostat.

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Automatic Transmission Thermostat

2X Entries Into Our F80 M3 Sweepstakes

T#:13661147

Part#: 17111437362

In Stock

Sale - Save 37% $ 43.99

This product was last offered at the strikethrough price on
07-14-2026

$ 27.54 USD

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Qty

Sale - Save 37%

$ 43.99

This product was last offered at the strikethrough price on
07-14-2026

$ 27.54 USD

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This unit controls the temperature of your automatic transmission fluid

Thermostat - 80°C

T#:375224

Part#: 11531466174

Ships on Sep 25, 2026

$ 30.99 USD

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$ 30.99 USD

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Wahler Thermostat - E31, E32

T#:579650

Part#: 4516.85

Back Ordered

$ 34.99 USD

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$ 34.99 USD

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Stop your overheating problem.

Thermostat - 80°C

T#:594737

Part#: 11531254065

Back Ordered

$ 22.99

This product was last offered at the strikethrough price on
05-07-2026

$ 21.99 USD

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$ 21.99 USD

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The thermostat on your vehicle controls the flow of coolant based on temperature. When you just start your engine, the thermostat remains closed to accelerate the warm up process. After a few minutes, it opens up to allow the warm fluid to flow. If your vehicle is overheating but not blowing warm air from the heater, the problem is more than likely your thermostat.

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Wahler Auxiliary Thermostat - E34, E36

T#:375968

Part#: 13541730682

Back Ordered

$ 66.99 USD

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$ 66.99 USD

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Thermostat that controls water flow temperature to the throttle body

Rein Thermostat O-Ring (60 X 3.5 mm) - E28 E30 E32 E34 E36 E39 Z3 E23...

2X Entries Into Our F80 M3 Sweepstakes

T#:591144

Part#: 11531265084

In Stock at Vendor

Sale - Save 5% $ 2.05

This product was last offered at the strikethrough price on
08-31-2026

$ 1.95 USD

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Qty

Sale - Save 5%

$ 2.05

This product was last offered at the strikethrough price on
08-31-2026

$ 1.95 USD

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This O-ring seals the thermostat to the cylinder head.

Rein Thermostat - 92C

2X Entries Into Our F80 M3 Sweepstakes

T#:34114254

Part#: 11537511083

In Stock

Sale - Save 5% $ 11.99

This product was last offered at the strikethrough price on
08-31-2026

$ 11.39 USD

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Qty

Sale - Save 5%

$ 11.99

This product was last offered at the strikethrough price on
08-31-2026

$ 11.39 USD

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Rein Thermostat 92C is an essential component designed to regulate the temperature in BMW engines, ensuring the vehicle runs at optimal performance while preventing overheating. Engineered to open at 92°C, this high-quality thermostat allows for precise coolant flow, keeping the engine at the correct temperature for maximum efficiency. Available at Turner Motorsport, the Rein Thermostat 92C is designed specifically for BMW vehicles, offering a direct-fit replacement that ensures easy installation and reliable operation.

Opens at 92°C for precise temperature regulation
Designed specifically for BMW engines for perfect fit and compatibility
Prevents engine overheating and helps protect critical engine components
Enhances overall engine efficiency and performance
Manufactured from durable materials for long-lasting reliability
Direct-fit replacement for easy installation

The Rein Thermostat 92C is the ideal solution for BMW owners who want to ensure their vehicle’s engine operates efficiently and reliably, providing optimal temperature control and enhanced performance.

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Wahler Thermostat O-Ring - E46, Z3, Z4

T#:362366

Part#: 11531318402

In Stock

$ 6.17 USD

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$ 6.17 USD

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BMW does not include a o-ring with their new thermostats

Rein Thermostat Assembly - F Chassis, G-Chassis - B48

2X Entries Into Our F80 M3 Sweepstakes

T#:53891628

Part#: 11537644811

Ships in 3 Business Days

Sale - Save 15% $ 322.99

This product was last offered at the strikethrough price on
06-10-2026

$ 274.43 USD

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Sale - Save 15%

$ 322.99

This product was last offered at the strikethrough price on
06-10-2026

$ 274.43 USD

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Whether you're managing a fleet of "spirited" daily drivers or prepping a chassis for the circuit, the Rein CTA0079 offers the peace of mind that comes with OE-quality engineering.

Rein Thermostat - E70, E71

2X Entries Into Our F80 M3 Sweepstakes

T#:403980

Part#: 11537550172

Ships in 1 Business Day

Sale - Save 5% $ 67.99

This product was last offered at the strikethrough price on
08-31-2026

$ 64.59 USD

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Sale - Save 5%

$ 67.99

This product was last offered at the strikethrough price on
08-31-2026

$ 64.59 USD

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Replaces failed thermostat or as preventative maintenance for your cooling system

Rein - Thermostat Assembly 82C - X5 M62, X5 N62

2X Entries Into Our F80 M3 Sweepstakes

T#:34080721

Part#: 17107559966

Ships in 3 Business Days

Sale - Save 12% $ 51.99

This product was last offered at the strikethrough price on
04-28-2026

$ 45.92 USD

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Sale - Save 12%

$ 51.99

This product was last offered at the strikethrough price on
04-28-2026

$ 45.92 USD

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Thermostat Assembly 82C is a high-quality, precision-engineered component designed to regulate the engine's cooling system effectively. Manufactured to meet or exceed OEM specifications, this thermostat helps ensure optimal engine performance by maintaining the ideal operating temperature. Available from Turner Motorsport, this part offers superior durability and reliability for a wide range of vehicle models.

Designed for precise temperature control
Maintains engine at the optimal 82°C (180°F) temperature
Helps prevent overheating and improves fuel efficiency
Direct fit replacement for hassle-free installation
Manufactured from high-quality materials for long-lasting performance

Upgrade your vehicle's cooling system with this essential Thermostat Assembly 82C, ensuring smooth engine operation under various driving conditions.

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Rein Water Hose - Water Hose To Thermostat Inlet

2X Entries Into Our F80 M3 Sweepstakes

T#:17738370

Part#: 11537589949

Ships in 3 Business Days

Sale - Save 5% $ 45.99

This product was last offered at the strikethrough price on
08-31-2026

$ 43.69 USD

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$ 45.99

This product was last offered at the strikethrough price on
08-31-2026

$ 43.69 USD

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Prevents leaks and comebacks from reusing old quick connects and o-rings.

Rein Thermostat Assembly E38 740iL

2X Entries Into Our F80 M3 Sweepstakes

T#:34114233

Part#: 11531437526

Ships in 1 Business Day

Sale - Save 5% $ 68.99

This product was last offered at the strikethrough price on
08-31-2026

$ 65.54 USD

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$ 68.99

This product was last offered at the strikethrough price on
08-31-2026

$ 65.54 USD

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Regulates Engine coolant temperature. Comes with aluminum housing, O-ring, and sensor.

Rein Thermostat Assembly - F22 F87 F23 F30 F34 F32 F33 F36 F15 F16 - ...

2X Entries Into Our F80 M3 Sweepstakes

T#:55965849

Part#: 11537598865

Ships in 3 Business Days

Sale - Save 5% $ 79.99

This product was last offered at the strikethrough price on
08-31-2026

$ 75.99 USD

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Sale - Save 5%

$ 79.99

This product was last offered at the strikethrough price on
08-31-2026

$ 75.99 USD

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A malfunctioning or lazy thermostat can lead to poor fuel trim efficiency, sluggish performance, and destructive overheating. This Rein thermostat assembly is engineered as a robust direct replacement for your worn factory unit, ensuring proper coolant regulation through the radiator under heavy loads.

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Engine Coolant Thermostat - F25 F26 - N55

2X Entries Into Our F80 M3 Sweepstakes

T#:55965845

Part#: 11537586784

Ships in 3 Business Days

Sale - Save 5% $ 85.99

This product was last offered at the strikethrough price on
08-31-2026

$ 81.69 USD

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$ 85.99

This product was last offered at the strikethrough price on
08-31-2026

$ 81.69 USD

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Maintain exact control over your N55’s operating temperatures under demanding street and track conditions with this Rein replacement thermostat unit. Engineered to match factory standards, this complete housing and thermostat assembly ensures your cooling system handles thermal loads flawlessly to prevent heat soak or dangerous overheating.

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Gasket, Water Pump (Cooling System)

2X Entries Into Our F80 M3 Sweepstakes

T#:54852013

Part#: B47.470

Ships in 7 Business Days

$ 11.99 USD

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$ 11.99 USD

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Upgrade your worn components with this high-quality piece and drive with the confidence that your engine is sealed tight and performing at its absolute best.

Thermostat Housing W/ Thermostat Kit - Priced As Kit CTA0018 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:38621399

Part#: 11537534521

Ships in 6 Business Days

Sale - Save 5% $ 112.99

This product was last offered at the strikethrough price on
08-31-2026

$ 107.34 USD

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$ 112.99

This product was last offered at the strikethrough price on
08-31-2026

$ 107.34 USD

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Thermostat Housing

T#:47850791

Part#: 11537586784

Ships on Sep 25, 2026

$ 142.99 USD

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Qty

$ 142.99 USD

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Elring Thermostat O-Ring - BMW S54 3.2L

2X Entries Into Our F80 M3 Sweepstakes

T#:45278657

Part#: 293.300

Special Order: No Guaranteed ETA

$ 3.99 USD

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Qty

$ 3.99 USD

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Seals the thermostat and thermostat housing to the water pump Replaces BMW # 11531318402

Elring Thermostat Gasket - BMW M44 1.9L

2X Entries Into Our F80 M3 Sweepstakes

T#:45244504

Part#: 743.390

Special Order: No Guaranteed ETA

$ 7.99 USD

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$ 7.99 USD

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This gasket prevents the coolant from leaking between the thermostat housing and the engine connection. If your gasket is cracked, replace it with this Elring gasket to prevent further coolant leaks.

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Elring Thermostat Gasket - BMW M60 M62 M70 S70

2X Entries Into Our F80 M3 Sweepstakes

T#:45005599

Part#: 818.437

Special Order: No Guaranteed ETA

$ 2.99 USD

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$ 2.99 USD

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This rubber gasket seals the junction between the thermostat and water pump Measurements: 4.0x76.5mm

Mahle Thermostat - 80ï¿½C - E12, E23, E24, E28

T#:591826

Part#: 11539055588

Back Ordered

$ 28.99 USD

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$ 28.99 USD

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Stop your overheating problem.

Rein Thermostat 80C - E30 325e, E28 535i, E24 633CSi

2X Entries Into Our F80 M3 Sweepstakes

T#:34114243

Part#: 11531710953

In Stock

Sale - Save 5% $ 19.99

This product was last offered at the strikethrough price on
08-31-2026

$ 18.99 USD

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Qty

Sale - Save 5%

$ 19.99

This product was last offered at the strikethrough price on
08-31-2026

$ 18.99 USD

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Thermostat 80C is a crucial component for controlling the temperature in BMW engines, ensuring optimal performance and protection. Designed to open at 80°C, this thermostat helps your engine reach its ideal operating temperature quickly while preventing overheating. Engineered specifically for BMW vehicles, the Thermostat 80C ensures precise temperature regulation, enhancing both engine efficiency and longevity. Available at Turner Motorsport, this direct-fit replacement offers easy installation and reliable performance.

Designed for BMW engines for a perfect fit
Opens at 80°C to regulate coolant flow and maintain optimal temperature
Prevents overheating and improves engine efficiency
Manufactured from high-quality, durable materials for long-lasting use
Direct-fit replacement ensures hassle-free installation
Enhances overall engine performance and longevity

The Thermostat 80C from Turner Motorsport is the perfect choice for BMW owners looking to maintain optimal engine temperature, ensuring smooth operation and extending the life of their vehicle.

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BMW Thermostat Gasket

2X Entries Into Our F80 M3 Sweepstakes

T#:15048409

Part#: 11531250357

Back Ordered

$ 4.99

This product was last offered at the strikethrough price on
05-08-2026

$ 3.99 USD

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Qty

$ 3.99 USD

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Whether you are just doing general maintenance or noticing some symptoms of a failing gasket, it's always a good idea to replace your gaskets anytime your engine components are removed. Get your replacement gasket here today!

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