Also called a Heat Management Module, this electronic thermostat controls coolant flow based on engine temperatures
10X Entries Into Our F80 M3 Sweepstakes
Includes the components needed to replace the two biggest B48 cooling issues, plus most of the "while you are in there" parts we highly recommend replacing - featuring an Aluminum Oil Filter Housing, Coolant Thermostat Module, and coolant pump assembly!
10X Entries Into Our F80 M3 Sweepstakes For vehicles without Energy Recovery System (S1CEA)
Brand:
ES#:
5425175
Mfg#:
G2XB48DOFHL2KT
Ships in 2 Business Days
ON SALE!
$1733.99
This product was last offered at the strikethrough price on 06-15-2026
Includes the main components needed to replace the two biggest B48 cooling issues - featuring an upgraded Aluminum Oil Filter Housing and new Coolant Thermostat Module
10X Entries Into Our F80 M3 Sweepstakes For vehicles without Energy Recovery System (S1CEA)
Brand:
ES#:
5425168
Mfg#:
G2XB48DOFHL1KT
Ships on Oct 22, 2026
ON SALE!
SAVE 13%
$1106.99
This product was last offered at the strikethrough price on 06-15-2026
Our most comprehensive kit yet, including the majority of components that should be replaced when repalcing your oil filter housing and thermostat module - featuring an Aluminum Oil Filter Housing, Coolant Thermostat Module, and coolant pump assembly!
10X Entries Into Our F80 M3 Sweepstakes For vehicles without Energy Recovery System (S1CEA) For models with a production date from 07/2021+ with Control DSC (S8WEA)
Brand:
ES#:
5425190
Mfg#:
G2XB48DOFHL3AKT
Ships on Oct 22, 2026
$2377.99
This product was last offered at the strikethrough price on 06-09-2026
Our most comprehensive kit yet, including the majority of components that should be replaced when repalcing your oil filter housing and thermostat module - featuring an Aluminum Oil Filter Housing, Coolant Thermostat Module, and coolant pump assembly!
10X Entries Into Our F80 M3 Sweepstakes For vehicles without Energy Recovery System (S1CEA) For models with a production date up to 07/2021 or a production date from 07/2021+ without Crontrol DSC (S8WEA)
Brand:
ES#:
5425185
Mfg#:
G2XB48DOFHL3KT
Ships on Oct 22, 2026
$2377.99
This product was last offered at the strikethrough price on 06-09-2026
$2249.99 USD
Partial Replacement
More About Engine Thermostat Parts
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
