Also called a Heat Management Module by BMW, this electronic thermostat controls coolant flow based on engine temperatures
For Pre-LCI models with the earlier B46D engine
Brand:
ES#:
4179815
Mfg#:
11538642560
In Stock
9% off MSRP
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
$446.99
This product was last offered at the strikethrough price on 07-06-2026
Also called a Heat Management Module, this electronic thermostat controls coolant flow based on engine temperatures
10X Entries Into Our F80 M3 Sweepstakes For Pre-LCI models with the earlier B46D engine
Brand:
ES#:
5433734
Mfg#:
11538642560
In Stock
ON SALE!
SAVE 50%
$356.99
This product was last offered at the strikethrough price on 05-02-2026
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) For Pre-LCI models with the B48 Gen2 (B48D) engine only - Not compatible with later Gen3 engines
Brand:
ES#:
5425175
Mfg#:
G2XB48DOFHL2KT
Ships in 1 day
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) For Pre-LCI models with the B48 Gen2 (B48D) engine only - Not compatible with later Gen3 engines
Brand:
ES#:
5425168
Mfg#:
G2XB48DOFHL1KT
Ships in 6 Business Days
ON SALE!
SAVE 12%
$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 Pre-LCI models with a production date from 07/2021+ with Control DSC (S8WEA)
Brand:
ES#:
5425190
Mfg#:
G2XB48DOFHL3AKT
Ships in 6 Business Days
$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 Pre-LCI 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 in 6 Business Days
$2377.99
This product was last offered at the strikethrough price on 06-09-2026
$2257.99 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
