BMW Thermostats for BMW G01 X3 xDrive30i B46 2.0L

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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.

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Water Pump & Thermostat Kit - Gen 1 B46 2.0L

For model years 2018-2019

10X Entries Into Our F80 M3 Sweepstakes

T#:35863149

Part#: 11518638026TKT

Ships in 1-2 days

Sale - Save 5% $ 740.99

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

$ 705.38 USD

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Sale - Save 5%

$ 740.99

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

$ 705.38 USD

Add to Wish List

BMW's cooling system has long been a known weak spot, with the water pump and thermostat being two of the most common trouble areas. This remains true even in the latest B-Series engines found in 2016 and newer BMW models. This kit includes a brand-new OEM Pierburg water pump, a Bremmen thermostat (now referred to as a Heat Management Module), and one gallon of BMW's G48 coolant concentrate (enough to make two gallons of 50/50 coolant). Avoid spending thousands at the dealership or over $600 on Genuine BMW parts! These components can be replaced with high-quality OEM parts in just an afternoon using basic hand tools.

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BMW B46 B48 Thermostat With Housing And Gasket

2X Entries Into Our F80 M3 Sweepstakes

T#:27372124

Part#: 11537644811

Back Ordered

$ 265.99 USD

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$ 265.99 USD

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BMW B46 B48 Thermostat With Housing And Gasket is an essential component for maintaining optimal engine performance and cooling efficiency. This high-quality thermostat comes complete with housing and gasket, ensuring a precise fit and reliable operation.

The thermostat plays a crucial role in regulating the flow of coolant based on engine temperature. By controlling this flow, it helps maintain the engine at its optimal operating temperature, preventing overheating and ensuring efficient performance.

Complete Assembly: Includes thermostat, housing, and gasket for easy installation.
Optimal Cooling: Regulates coolant flow to maintain proper engine temperature.
Enhanced Performance: Ensures your engine operates within its ideal temperature range.
Durable Construction: Made with high-quality materials for long-lasting reliability.

Ensure your BMW's cooling system is functioning correctly with this reliable thermostat assembly from Turner Motorsport.

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VEMO Coolant Thermostat Assembly - BMW G20 G22/23 G30 B48 2.0L ...

T#:49578587

Part#: V20-99-1310

Special Order: No Guaranteed ETA

$ 182.99 USD

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$ 182.99 USD

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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.

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BMW Thermostats for BMW G01 X3 xDrive30i B46 2.0L

Water Pump & Thermostat Kit - Gen 1 B46 2.0L

BMW B46 B48 Thermostat With Housing And Gasket

VEMO Coolant Thermostat Assembly - BMW G20 G22/23 G30 B48 2.0L ...

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