Mishimoto Racing Thermostat for BMW M52/M54/M56 Engines

Upgrade your BMW's cooling system with the Mishimoto MMTS-E46-99V2 Racing Thermostat, engineered for high-performance applications. Designed specifically for BMW M52, M54, and M56 engines, this low-temperature thermostat begins opening 48°F (27°C) sooner than the stock unit, allowing coolant to circulate through your radiator earlier and maintain optimal operating temperatures. Ideal for modified engines pushing higher power outputs, this thermostat ensures consistent performance and reduced risk of overheating.

This kit includes a pre-installed thermostat in an OEM-style housing, along with a matching gasket for a seamless installation. Backed by Mishimoto’s Lifetime Warranty, you can trust in its durability and precision engineering. Engineered for direct fitment, this thermostat is the perfect choice for enthusiasts seeking improved thermal management in their high-performance BMW.