Replace your water pump & add strength to your cooling system!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Includes ECS billet and silicone hoses and Redline Water Wetter
Brand:
ES#:
3604207
Mfg#:
11517632426KT10
In Stock
ON SALE!
SAVE 25%
$800.53
This product was last offered at the strikethrough price on 05-02-2026
The MSL thermostat ensures a cooler oil temperature which will result in more stable performance
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes everything you need to replace your water pump and thermostat. Featuring Pierburg Full Aluminum water pump and thermostat.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4020057
Mfg#:
11517632426KT11
In Stock
$743.99
This product was last offered at the strikethrough price on 04-01-2026
The MSL thermostat ensures a cooler oil temperature which will result in more stable performance
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Includes a 74c race thermostat
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Reuses factory thermostat housing
Brand:
ES#:
2804281
Mfg#:
11517632426KT5
In Stock
ON SALE!
SAVE 20%
$514.99
This product was last offered at the strikethrough price on 05-02-2026
Includes everything you need to replace your water pump and thermostat using Genuine BMW components
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Low-temp thermostat reduces stresses on engine components and improves performance
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
4760006
Mfg#:
11537601159-97C
In Stock
ON SALE!
SAVE 21%
$107.99
This product was last offered at the strikethrough price on 05-02-2026
Restore proper function to your cooling system
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Everything you need to replace your thermostat with a high quality aftermarket unit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3659768
Mfg#:
115376011591-1KT
In Stock at Vendor
$174.99
This product was last offered at the strikethrough price on 05-07-2026
Includes everything you need to replace your water pump and thermostat using OEM and Genuine BMW components
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand:
ES#:
3659496
Mfg#:
11517632426KT-2
Ships on Oct 16, 2026
$864.99
This product was last offered at the strikethrough price on 03-16-2026
Includes everything you need to replace your water pump and thermostat. Featuring OE water pump and thermostat.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! Featuring all German-made components - water pump, Wahler thermostat, Genuine BMW coolant
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.
Partial Replacement
