Aluminum design - Located on the front right of the engine block
2X Entries Into Our F80 M3 Sweepstakes 2X Entries For Our Spin To Win Sweepstakes! We Price Match - Give Us A Call or Chat! Aluminum housing used on the B5 S4 - Commonly used as a factory upgrade for the OE plastic piece
Keep your cooling system efficient with a new thermostat and housing
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes! Aluminum housing used on the B5 S4 - Commonly used as a factory upgrade for the OE plastic piece
Brand:
ES#:
3659374
Mfg#:
07812112JKT4
Ships in 2 Business Days
ON SALE!
$191.99
This product was last offered at the strikethrough price on 11-07-2026
Does not include sealing O-Ring
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes! Lower temperature thermostat, stock is 87°C
Brand:
ES#:
4952533
Mfg#:
075121113D
In Stock
ON SALE!
SAVE 30%
$14.99
This product was last offered at the strikethrough price on 11-07-2026
Maintain proper operating temperature with a new thermostat, housing and hardware
10X Entries Into Our F80 M3 Sweepstakes 10X Entries For Our Spin To Win Sweepstakes!
Brand:
ES#:
2771457
Mfg#:
078121121KKT
Ships on Mar 11, 2027
ON SALE!
SAVE 14%
$107.99
This product was last offered at the strikethrough price on 08-24-2026
Your thermostat helps regulate engine temperatures by allowing the coolant to circulate through the radiator once it opens. If it fails, this might mean it never closes, but worst case, it could mean your coolant doesn't get to the radiator. Stay ahead of cooling issues by replacing your thermostat regularly with an OEM thermostat or quality aftermarket thermostat from our selection.
Lifetime Replacement
