BMW Thermostats for BMW 4 Series G22 (2021+)

Clear BMW chassis

Please ensure your correct model is selected

BMW thermostats are known to fail, but luckily they typically fail wide open - meaning that your car can still cool. We offer thermostats from various OE suppliers we trust along with upgraded motorsport specific thermostats where applicable to make sure your BMW stays cool on track.
Sort By:

Genuine BMW Electronic Thermostat and Coolant Distribution Module - B...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:617366
Part#: 11538642559
In Stock
10% off MSRP $ 491.99

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

$ 443.99 USD
Free Shipping on orders $49 and up
10% off MSRP
$ 491.99

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

$ 443.99 USD
Free Shipping on orders $49 and up
Genuine BMW electronic thermostat that is controlled by the car's computer for optimal control over the engine and coolant's temperature.
Junction Heat Hose - 11538606278
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:36913362
Part#: 11538606278
In Stock
Sale - Save 21% $ 54.99

This product was last offered at the strikethrough price on
05-03-2026

$ 43.24 USD
Free Shipping on orders $49 and up
Sale - Save 21%
$ 54.99

This product was last offered at the strikethrough price on
05-03-2026

$ 43.24 USD
Free Shipping on orders $49 and up

This junction heat hose, made from rubber, is prone to cracking, dry rot, and brittleness over time, often leading to coolant leaks at the front of the engine. Such leaks pose a significant risk to your engine’s health, as rapid coolant loss can cause overheating and severe damage.

Replace your worn or leaking heat hose with this high-quality OE replacement from Bremmen Parts. Engineered for a precise fit and long-lasting performance, this hose ensures a reliable repair and helps protect your engine from potential overheating.

Show More Show Less
Genuine BMW Coolant Thermostat Module - BMW G20 G22/23 G30 B48 2.0L ...
For Pre-LCI models with the earlier B46D engine
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:617367
Part#: 11538642560
In Stock
6% off MSRP $ 446.99

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

$ 419.99 USD
Free Shipping on orders $49 and up
6% off MSRP
$ 446.99

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

$ 419.99 USD
Free Shipping on orders $49 and up
Modern BMW thermostats are electronically controlled, allowing the DME/ECU to directly regulate coolant flow throughout the engine and its components. This system enables the thermostat to operate based on a broader range of temperature inputs, such as coolant, cylinder head, engine block, and oil temperatures, for more refined control of engine warm-up and temperature across diverse conditions. Unlike traditional thermostats, which simply open or close to permit coolant flow, this system uses a rotary valve for more dynamic control. The rotary valve adjusts to various positions, allowing for partial or full coolant flow to designated passageways as needed. This precision control helps your BMW's engine reach optimal temperatures quickly and ensures efficient heat management under various driving conditions.
Show More Show Less

HOSE - JUNCTION-HEAT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:546143
Part#: 11538606278
Ships in 4 Business Days
6% off MSRP $ 84.99

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

$ 79.99 USD
Free Shipping
6% off MSRP
$ 84.99

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

$ 79.99 USD
Free Shipping
Hose coming off the small fitting on the thermostat. Replacement coolant hose for damaged or worn items. Dont forget to change all associated parts when doing a cooling service, or to fix a leak.

OEM INA Electronic Thermostat And Coolant Distribution Module - BMW B...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Ina - Corporate Logo
T#:36201645
Part#: 11538642559
In Stock at Vendor
$ 349.98 USD
Free Shipping on orders $49 and up
$ 349.98 USD
Free Shipping on orders $49 and up
Engineered specifically for BMW models, the electronic thermostat and coolant distribution module plays a vital role in the engine’s cooling system, adapting to changing temperatures for superior performance under all driving conditions. Whether on the track or the highway, this module ensures your BMW runs cooler, longer, and more efficiently.
Show More Show Less
Thermostat O-ring
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:526204
Part#: 11538658572
Ships in 1-3 days
$ 9.99

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

$ 8.99 USD
Free Shipping on orders $49 and up
$ 8.99 USD
Free Shipping on orders $49 and up
O ring that seals the thermostat to the coolant pump. New seals are a must when doing any repairs.

Electronic Thermostat And Coolant Distribution Module
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:50311455
Part#: 11538843406
In Stock
New Item
Sale - Save 10% $ 397.99

This product was last offered at the strikethrough price on
05-03-2026

$ 358.01 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 397.99

This product was last offered at the strikethrough price on
05-03-2026

$ 358.01 USD
Free Shipping on orders $49 and up
Genuine BMW Profile-Gasket - 11538658571
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:222845
Part#: 11538658571
Ships in 1-3 days
7% off MSRP $ 14.99

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

$ 13.99 USD
Free Shipping on orders $49 and up
7% off MSRP
$ 14.99

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

$ 13.99 USD
Free Shipping on orders $49 and up
Gasket that goes between the thermostat and radiator return pipe. Gaskets and seals are a wear item that should be replaced in conjunction with associated parts.

Genuine BMW Thermostat Module Preformed Seal - Small - BMW B58C B58D ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:624783
Part#: 11539494424
Ships in 1 day
13% off MSRP $ 14.99

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

$ 12.99 USD
Free Shipping on orders $49 and up
13% off MSRP
$ 14.99

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

$ 12.99 USD
Free Shipping on orders $49 and up
This preformed seal is an o-ring seal that seals the connection between the thermostat housing/heat management module and the engine block. This seal is the larger of two seals located on the side of the heat management module.
Show More Show Less

Genuine BMW Thermostat Module Preformed Seal - Large - BMW B58C B58D ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:624784
Part#: 11539494425
Ships in 1 day
13% off MSRP $ 14.99

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

$ 12.99 USD
Free Shipping on orders $49 and up
13% off MSRP
$ 14.99

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

$ 12.99 USD
Free Shipping on orders $49 and up
This preformed seal is an o-ring seal that seals the connection between the thermostat housing/heat management module and the engine block. This seal is the larger of two seals located on the side of the heat management module.
Show More Show Less
Genuine BMW Water Pump & Thermostat Kit - BMW B58C B58D (B58TU) ...
For vehicles with the B58D (Gen2) engine only - Will not fit the earlier B58A (Gen1) en...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For models without the 48V Mild Hybrid package
Genuine BMW - Corporate Logo
T#:29333997
Part#: 11518482251KT
Ships in 1 day
$ 715.99 USD
Free Shipping on orders $49 and up
$ 715.99 USD
Free Shipping on orders $49 and up
If your water pump or thermostat has failed, this kit includes all the basic components needed to replace and restore your cooling system! Included: Water Pump Thermostat Housing (aka Heat Management Module) Coolant Outlet Pipe (L-Pipe) Gaskets & Seals
Show More Show Less
Radiator Return Pipe - B58
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:545300
Part#: 11538630023
Ships in 1 day
7% off MSRP $ 329.99

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

$ 306.99 USD
Free Shipping
7% off MSRP
$ 329.99

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

$ 306.99 USD
Free Shipping
Coolant pipe that runs from the thermostat next to the engine block. Make sure your cooling system is working properly and leak free. When your in the tight spaces doing a service it makes sense to change all associated parts.
Show More Show Less


VEMO Electronic Thermostat And Coolant Distribution Module - BMW B58T...
For vehicles with the early B58C or B58D TU engine - Will not fit the B58N TU2 engine
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vemo - Corporate Logo
T#:52903296
Part#: V20-99-0005
Ships on Jul 16, 2026
New Item
$ 336.99 USD
$ 336.99 USD
An electronic thermostat that is controlled by the car's computer for optimal control over the engine and coolant temperature. Internal valves are opened and closed by the vehicle's DME/ECU to achieve specific temperature targets for optimal engine efficiency and performance.
Show More Show Less
VEMO Coolant Thermostat Assembly - BMW G20 G22/23 G30 B48 2.0L ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Vemo - Corporate Logo
T#:49578587
Part#: V20-99-1310
Special Order: No Guaranteed ETA
New Item
$ 182.99 USD
Free Shipping on orders $49 and up
Modern BMW thermostats are electronically controlled, allowing the DME/ECU to directly regulate coolant flow throughout the engine and its components. This system enables the thermostat to operate based on a broader range of temperature inputs, such as coolant, cylinder head, engine block, and oil temperatures, for more refined control of engine warm-up and temperature across diverse conditions. Unlike traditional thermostats, which simply open or close to permit coolant flow, this system uses a rotary valve for more dynamic control. The rotary valve adjusts to various positions, allowing for partial or full coolant flow to designated passageways as needed. This precision control helps your BMW's engine reach optimal temperatures quickly and ensures efficient heat management under various driving conditions.
Show More Show Less

Select Vehicle