Includes the thermostat, union, and gaskets
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Everything you need to replace your thermostat/water pump
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
5481085
Mfg#:
06L121111JKT
In Stock
$399.99
This product was last offered at the strikethrough price on 06-18-2026
Includes new thermostat, j-plug, o-ring, and hardware
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
2574945
Mfg#:
06B121111KKT
In Stock
ON SALE!
SAVE 24%
$116.99
This product was last offered at the strikethrough price on 05-02-2026
Includes necessary parts to replace the thermostat. Includes upgraded Hamburg Technic water pump/thermostat.
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
5386432
Mfg#:
06L121111HPKT2
In Stock
ON SALE!
$312.99
This product was last offered at the strikethrough price on 05-02-2026
Includes necessary parts to replace the thermostat. Includes revised genuine water pump/thermostat.
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
5386442
Mfg#:
06L121111HPKT3
In Stock
$834.99
This product was last offered at the strikethrough price on 08-14-2026
Install new hardware with your new parts. M7x28
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Secures thermostat housing to engine block - 2 needed total
Brand:
ES#:
261191
Mfg#:
N90735604
In Stock
2% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$4.18
This product was last offered at the strikethrough price on 10-28-2026
Includes the thermostat, temp sensor, union, and gaskets
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Brand:
ES#:
3536895
Mfg#:
06H121026DD
In Stock
$323.99
This product was last offered at the strikethrough price on 05-02-2026
Engineered to be the last worry in your coolant system
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
2763232
Mfg#:
005224ECS01A
In Stock
ON SALE!
SAVE 25%
$66.99
This product was last offered at the strikethrough price on 06-13-2026
Install new hardware with your new parts. M6x18
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Used to secure the thermostat housing to the water pump
Install new hardware with your new parts. M6x28
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Secures the thermostat assembly to the engine
Prevent overheating and premature engine wear
Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply Up to VIN 8D-X-315000, split is in the 1999 model year
Complete water pump housing module, includes thermostat, temp sensor, belt and gasket - Featuring a full aluminum housing!
2X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply We Price Match - Give Us A Call or Chat!
Brand:
ES#:
4362074
Mfg#:
06H121026DD
Back Ordered
$477.99
This product was last offered at the strikethrough price on 10-22-2026
$301.99 USD
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Lifetime Replacement
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Includes thermostat with housing, o-ring and mounting hardware
10X Entries Into Our F80 M3 Sweepstakes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Brand:
ES#:
2586519
Mfg#:
06D121111G2KT
In Stock
ON SALE!
SAVE 30%
$56.99
This product was last offered at the strikethrough price on 05-02-2026
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
