BMW Thermostats for BMW G01 X3 xDrive30i B46 2.0L

Clear BMW chassis

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

Add to Wish List

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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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