Upgrade from your all-in-one plastic thermostat assembly to a stout and reliable billet mechanical thermostat setup!
10X Entries Into Our F80 M3 Sweepstakes
Includes a Water Pump & Bolts, Thermostat Assembly, Thermostat Hose w/ Aluminum Flange, Water Pump Hose, Lower Radiator Hose, and Water Pump to Thermostat Hose
2X Entries Into Our F80 M3 Sweepstakes
Includes a 74c race thermostat, Pierburg water pump, and ECS silicone hoses
10X Entries Into Our F80 M3 Sweepstakes For vehicles with plastic thermostat housing
Brand:
ES#:
4172080
Mfg#:
11517586925KT15
In Stock
ON SALE!
SAVE 16%
$892.99
This product was last offered at the strikethrough price on 09-09-2026
Over time, heat cycles degrade the plastic components, internal electronics fail, and you're left stranded with a yellow (or worse, red) coolant warning light on your dash.
10X Entries Into Our F80 M3 Sweepstakes
Brand:
ES#:
5481358
Mfg#:
11517604027KT2
In Stock
ON SALE!
$494.99
This product was last offered at the strikethrough price on 09-10-2026
Includes a new water pump, heat management module, coolant outlet pipe, and all new o-ring seals
For models without the 48V Mild Hybrid package For vehicles with the B58D (Gen2) engine only - Will not fit the earlier B58A (Gen1) engine
Includes a 74c race thermostat, water pump, and ECS silicone hoses
10X Entries Into Our F80 M3 Sweepstakes For vehicles with plastic thermostat housing
Brand:
ES#:
4172081
Mfg#:
11517586925KT16
Ships in 1 day
ON SALE!
$1128.99
This product was last offered at the strikethrough price on 10-05-2026
Featuring a high-quality Geba water pump & MAHLE OEM thermostat!
10X Entries Into Our F80 M3 Sweepstakes For vehicles with production date up to 09/1987
Brand:
ES#:
4818336
Mfg#:
11531730470KT
In Stock
ON SALE!
$173.99
This product was last offered at the strikethrough price on 07-02-2026
Includes everything you need to replace your water pump and thermostat. Featuring high-quality, German-made water pump and thermostat.
10X Entries Into Our F80 M3 Sweepstakes For vehicles with adaptive drive or auto climate control with 4 zone control
Partial Replacement
