Clip and o-ring sold separately
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This product was last offered at the strikethrough price on
09-03-2026
Clip and o-ring sold separately
We Price Match - Give Us A Call or Chat!
This product was last offered at the strikethrough price on
09-03-2026
Common point of failure or leaking for the cooling system
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
05-02-2026
Includes thermostat, housing gasket, and Water Pump Union
O-Ring between thermostat housing and cylinder head
Left side of engine, facing front of car
Located on the front side of the cylinder head
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ACC Engine code only
This product was last offered at the strikethrough price on
09-03-2026
Used with coolant flange and thrust ring to create a leak free seal
Located on the driver side of the cylinder head
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For model years 1985 - 1988 only
Located on the front side of the cylinder head
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ACC Engine code only
Stop annoying VR6 coolant leaks. Replace your brittle, warped thermostat housing and matching cover with this direct-fit OEM refresh kit!
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
08-28-2026
Located on the driver side of the cylinder head
Includes sealing o-ring.
AAZ engine code only.
2X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
This product was last offered at the strikethrough price on
08-31-2026
Common source of coolant leaks around your thermostat
Ensure a proper seal when installing your new thermostat. 50x4
For vehicles with CBEA or CJAA engine code only, gasket seals both sides of the thermostat housing together
Located on the driver side of the cylinder head, this pipe contains the coolant tempature sensor
For vehicles with 4-speed automatic or manual transmission from production date 09/01/2000 only