BMW E46 M3 S54 (1999-2005)

Clear BMW chassis

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HJS - Corporate Logo
T#:556847
Part#: 18201401797
Ships in 2 Business Days
$ 45.99 USD
Free Shipping on orders $49 and up
Rear muffler hanger
Wahler - Corporate Logo
T#:360524
Part#: 11531318274
In Stock
$ 105.99

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

$ 68.99 USD
Free Shipping
$ 68.99 USD
Free Shipping
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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HJS - Corporate Logo
T#:388461
Part#: 18111723379
In Stock
$ 10.99 USD
Free Shipping on orders $49 and up
Seals the mid-pipe to the muffler

HJS - Corporate Logo
T#:594771
Part#: 11627830668
Ships in 7 Business Days
$ 9.99 USD
Free Shipping on orders $49 and up
Wahler - Corporate Logo
T#:362366
Part#: 11531318402
In Stock
$ 6.17 USD
Free Shipping on orders $49 and up
BMW does not include a o-ring with their new thermostats

HJS - Corporate Logo
T#:385215
Part#: 18207832991
In Stock
$ 16.99 USD
Free Shipping on orders $49 and up
Located over the center exhaust support