Mishimoto Racing Thermostat for BMW N52, N54, and N55 Engines

Upgrade your BMW’s cooling system with the Mishimoto Racing Thermostat, engineered specifically for N52, N54, and N55 engines. This direct-fit thermostat is designed to activate at a lower temperature than the OEM unit, opening at 165°F (74°C) compared to the factory 206.5°F (97°C). This allows coolant to circulate through your engine sooner, promoting greater cooling efficiency and helping to maintain lower engine temperatures—especially important for modified or upgraded engines.

• Direct fit for BMW N52, N54, and N55 engines
• Opens at 165°F (74°C) for earlier coolant flow
• OEM thermostat activates at 206.5°F (97°C)
• Promotes cooler, more consistent engine temperatures
• Ideal for high-performance and track-driven vehicles
• Backed by the Mishimoto Lifetime Warranty