Wahler for BMW 3 Series E46 (1999-2005)

OEM Wahler Thermostat With Housing - E46 E53 E60 E83 M54

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

$ 105.99

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

$ 68.99 USD

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$ 68.99 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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