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BMW G20 330i B46 2.0L

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BMW G20 330i B46 2.0L Engine Thermostat Parts

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Coolant Thermostat Assembly

ES#4179815 - 11538642560 - Coolant Thermostat Assembly - Also called a Heat Management Module by BMW, this electronic thermostat controls coolant flow based on engine temperatures - Genuine BMW - BMW

Also called a Heat Management Module by BMW, this electronic thermostat controls coolant flow based on engine temperatures affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later models that feature the B48N/B48P engine

Brand:
Genuine BMW - Corporate Logo
ES#:
4179815
Mfg#:
11538642560
In Stock
6% 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
06-10-2026

$419.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Oil Filter Housing & Heat Management Module Kit - Level 2

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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)

Brand:
Assembled By ECS - Corporate Logo
ES#:
5425175
Mfg#:
G2XB48DOFHL2KT
Ships in 7 Business Days
$1733.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Thermostat Module Coolant Pipe W/ Wire Bracket

ES#4179822 - 11538651265 - Thermostat Module Coolant Pipe W/ Wire Bracket - Connects to the thermostat module and supports the electrical wiring harness - Genuine BMW - BMW

Connects to the thermostat module and supports the electrical wiring harness affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later models that feature the B48N/B48P engine

Brand:
Genuine BMW - Corporate Logo
ES#:
4179822
Mfg#:
11538651265
In Stock
1% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$78.99

This product was last offered at the strikethrough price on
03-04-2026

$77.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Hose - Water Pump to Thermostat Module

ES#4179818 - 11538650981 - Coolant Hose - Water Pump to Thermostat Module - Feeds coolant from the water pump to the thermostat module - Genuine BMW - BMW

Feeds coolant from the water pump to the thermostat module affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later models that feature the B48N/B48P engine

Brand:
Genuine BMW - Corporate Logo
ES#:
4179818
Mfg#:
11538650981
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.

$109.99

This product was last offered at the strikethrough price on
06-10-2026

$98.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Thermostat Assembly

Also called a Heat Management Module, this electronic thermostat controls coolant flow based on engine temperatures affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For models with the earlier B48D, B46D, or B46X engines - Not compatible with the later models that feature the B48N/B48P engine

Brand:
Bremmen Parts - Corporate Logo
ES#:
5433734
Mfg#:
11538642560
In Stock
ON SALE!
$356.99

This product was last offered at the strikethrough price on
05-02-2026

$339.14 USD
Free Shipping
on orders $49 and up

Coolant Bleeder Screw - Priced Each

ES#25157 - 11537793373 - Coolant Bleeder Screw - Priced Each - Comes with O-Ring - Genuine BMW - BMW MINI

Comes with O-Ring affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
25157
Mfg#:
11537793373
Ships in 1-3 days
6% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$17.99

This product was last offered at the strikethrough price on
06-10-2026

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Coolant Thermostat Assembly

ES#5424879 - V20-99-1310 - Coolant Thermostat Assembly - Also called a Heat Management Module by BMW, this electronic thermostat controls coolant flow based on engine temperatures - Vemo - BMW

Also called a Heat Management Module by BMW, this electronic thermostat controls coolant flow based on engine temperatures affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Vemo - Corporate Logo
ES#:
5424879
Mfg#:
V20-99-1310
Special Order: No Guaranteed ETA
$182.99 USD
Free Shipping
on orders $49 and up

Oil Filter Housing & Heat Management Module Kit - Level 1

ES#5425168 - g2xb48dofhl1KT - Oil Filter Housing & Heat Management Module Kit - Level 1 - 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 - Assembled By ECS - BMW

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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)

Brand:
Assembled By ECS - Corporate Logo
ES#:
5425168
Mfg#:
G2XB48DOFHL1KT
Ships in 9 Business Days
Auto Notify
$1093.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Oil Filter Housing & Heat Management Module Kit - Level 3

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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For vehicles without Energy Recovery System (S1CEA)
For models with a production date from 07/2021+ with Control DSC (S8WEA)

Brand:
Assembled By ECS - Corporate Logo
ES#:
5425190
Mfg#:
G2XB48DOFHL3AKT
Ships in 9 Business Days
Auto Notify
$2377.99

This product was last offered at the strikethrough price on
06-09-2026

$2359.99 USD
This product is lifetime replacement eligible Partial Replacement

Oil Filter Housing & Heat Management Module Kit - Level 3

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! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary 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:
Assembled By ECS - Corporate Logo
ES#:
5425185
Mfg#:
G2XB48DOFHL3KT
Ships in 9 Business Days
Auto Notify
$2377.99

This product was last offered at the strikethrough price on
06-09-2026

$2359.99 USD
This product is lifetime replacement eligible 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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