O-Ring between thermostat housing and cylinder head
O-Ring between thermostat housing and cylinder head
Clip and o-ring sold separately
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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
O-Ring between thermostat housing and cylinder head
Ensure a proper seal when installing your new thermostat
2X Entries Into Our F80 M3 Sweepstakes