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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Aluminum Thermostat Housing - E34, E36, Z3
Aluminum Thermostat Housing - E34, E36, Z3
Up to production date 09/1998
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:579865
Part#: 54402
In Stock
Sale - Save 22% $ 25.99

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

$ 20.39 USD
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Sale - Save 22%
$ 25.99

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

$ 20.39 USD
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The plastic thermostat cover in your BMW is a known point of failure. Throughout the years of repeated contact with hot coolant, the plastic can crack and cause massive coolant leaks and potential overheating.
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OEM Wahler Thermostat With Housing - E46 E53 E60 E83 M54
OEM Wahler Thermostat With Housing - E46 E53 E60 E83 M54
For vehicles with production date from 09/1998
Wahler - Corporate Logo
T#:341054
Part#: 11537509227
In Stock
$ 82.50

This product was last offered at the strikethrough price on
10-01-2026

$ 71.99 USD
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$ 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
OEM Wahler 80 Degree Thermostat - E46 M3, MZ3 S54, Z4 M
Wahler - Corporate Logo
T#:360524
Part#: 11531318274
In Stock
$ 105.99

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

$ 93.99 USD
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$ 93.99 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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Thermostat With Housing
Thermostat With Housing
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:26494584
Part#: 11537509227
In Stock
Sale - Save 25% $ 60.99

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

$ 45.99 USD
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Sale - Save 25%
$ 60.99

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

$ 45.99 USD
Free Shipping on orders $49 and up
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Febi Thermostat Housing - E34, E36, Z3
Febi Thermostat Housing - E34, E36, Z3
Up to production date 09/1998
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:381790
Part#: 11531722531
In Stock
$ 53.42

This product was last offered at the strikethrough price on
09-04-2026

$ 32.99 USD
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$ 32.99 USD
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Replacement plastic thermostat housing
Wahler Thermostat - 88�C - E30, E34, E36, Z3
Wahler Thermostat - 88�C - E30, E34, E36, Z3
Wahler - Corporate Logo
T#:369466
Part#: 11537511580
Ships in 4 Business Days
$ 53.99

This product was last offered at the strikethrough price on
09-30-2026

$ 44.99 USD
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$ 44.99 USD
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Common point of failure in the cooling system.
Wahler Performance Thermostat - 75*C - M42, M50, M52, S50, S52
Wahler Performance Thermostat - 75*C - M42, M50, M52, S50, S52 ...
Wahler - Corporate Logo
T#:54388511
Part#: 11537511580
Ships in 2 Business Days
New Item
$ 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
Febi Thermostat - 88°C - E30, E34, E36, Z3
Febi Thermostat - 88°C - E30, E34, E36, Z3
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:382407
Part#: 11537511580
Ships on Jan 12, 2027
$ 32.99 USD
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$ 32.99 USD
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Includes sealing O-ring gasket
Wahler Thermostat O-Ring - E46, Z3, Z4
Wahler Thermostat O-Ring - E46, Z3, Z4
Wahler - Corporate Logo
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
Thermostat - 80°C
Thermostat - 80°C
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:57507417
Part#: 11531318274
Ships on Jan 11, 2027
New Item
Sale - Save 10% $ 59.99

This product was last offered at the strikethrough price on
10-08-2026

$ 53.99 USD
Free Shipping on orders $49 and up
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Sale - Save 10%
$ 59.99

This product was last offered at the strikethrough price on
10-08-2026

$ 53.99 USD
Free Shipping on orders $49 and up
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