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BMW Thermostats for BMW Z Series E85/6 (2003-2008)

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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 - BMW N52 3.0L

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:17073598

Part#: 11537549476KT

In Stock

Sale - Save 25% $ 424.99

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

$ 318.83 USD

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Sale - Save 25%

$ 424.99

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

$ 318.83 USD

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Includes everything you may need to replace your water pump and thermostat.

Water Pump And Thermostat Kit

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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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Qty

Sale - Save 25%

$ 448.99

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

$ 337.56 USD

Add to Wish List

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 - E39 E46 E60 E53 Z3 Z4 With M54, M52TU En...

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T#:554073

Part#: 11537509227KT3

Ships on Jan 4, 2027

$ 101.99 USD

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$ 101.99 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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OEM Wahler Thermostat With Housing - E46 E53 E60 E83 M54

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T#:341054

Part#: 11537509227

In Stock

$ 69.99 USD

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$ 69.99 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

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T#:360524

Part#: 11531318274

In Stock at Vendor

$ 105.59

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

$ 80.99 USD

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$ 80.99 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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OEM Wahler Thermostat Assembly - E60/61 E82/88 E9X Z4 N51/N52 ...

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T#:360363

Part#: 11537549476

In Stock

$ 97.91

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

$ 96.99 USD

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$ 96.99 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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Thermostat Replacement Kit

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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 O-Ring - E46, Z3, Z4

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T#:362366

Part#: 11531318402

Ships in 4 Business Days

$ 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

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