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BMW Thermostats for BMW Z3 (1996-2002)

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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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OEM Wahler Thermostat With Housing - E46 E53 E60 E83 M54

For vehicles with production date from 09/1998

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

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

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

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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Genuine BMW Thermostat - 88ºC

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

T#:360691

Part#: 11537511580

In Stock

3% off MSRP $ 59.99

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

$ 57.99 USD

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Qty

3% off MSRP

$ 59.99

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

$ 57.99 USD

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Genuine BMW Thermostat With Housing - M52 M54

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

T#:360689

Part#: 11537509227

In Stock

3% off MSRP $ 174.45

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

$ 169.69 USD

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Qty

3% off MSRP

$ 174.45

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

$ 169.69 USD

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Genuine BMW Thermostat - 80*C - E46 M3, MZ3 S54, Z4 M

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

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

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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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Genuine BMW Thermostat Housing

Up to production date 09/1998

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

T#:360679

Part#: 11531722531

Ships in 2 Business Days

4% off MSRP $ 76.99

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

$ 73.99 USD

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Qty

4% off MSRP

$ 76.99

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

$ 73.99 USD

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

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

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.

Genuine BMW Thermostat - 92ºC

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

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

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Qty

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

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Thermostat Housing Gasket - M50, M52, S50, S52

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

T#:407610

Part#: 11531740437

In Stock

12% off MSRP $ 13.55

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

$ 11.90 USD

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12% off MSRP

$ 13.55

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

$ 11.90 USD

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Needs to be replaced once removed

Wahler Thermostat O-Ring - E46, Z3, Z4

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

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

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

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

T#:54388511

Part#: 11537511580

In Stock at Vendor

$ 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 Housing Gasket

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

T#:367704

Part#: 11537509357

Ships in 2 Business Days

14% off MSRP $ 9.74

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

$ 8.33 USD

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Qty

14% off MSRP

$ 9.74

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

$ 8.33 USD

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Needs to be replaced once removed

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