Includes the water pump (with support housing), gaskets, hoses, and the thermostat also known as the "heat management module"
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Replaces failed thermostat or as preventative maintenance for your cooling system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Comes with aluminum housing, o-ring & sensor
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with production date up to 09/1998
Thermostat controlled by the ECU for precise temperature control.
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For vehicles with the later B58C or B58D engine - Will not fit the B58A early engine
Brand:
ES#:
4179814
Mfg#:
11538642559
In Stock
10% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$491.99
This product was last offered at the strikethrough price on 06-04-2026
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
Restore proper function to your cooling system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms For G-Chassis models with an N63TU3 engine only
Brand:
ES#:
4179825
Mfg#:
11538685978
Ships in 1 day
9% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$212.99
This product was last offered at the strikethrough price on 06-04-2026
Includes a 74c race thermostat, water pump, and ECS silicone hoses
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes! For vehicles with plastic thermostat housing
Brand:
ES#:
4172081
Mfg#:
11517586925KT16
Ships in 1 day
ON SALE!
$1126.99
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
