BMW N52, N54, N55 Engines Racing Thermostat

BMW N52, N54, N55 Engines Racing Thermostat
BMW N52, N54, N55 Engines Racing Thermostat

Regular Price: $78.00

Sale Price $62.95

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Installation Difficulty

  • Direct fit for BMW N52, N54, and N55 engines
  • Activates at lower temperature so coolant flows through system earlier
  • Allows for cooler engine temperatures
  • Mishimoto Lifetime Warranty

The Mishimoto BMW Racing Thermostat fits all N52, N54, and N55 engines. It will promote greater cooling efficiency throughout your engine. Mishimoto racing thermostats will significantly lower high engine temperature produced by modified and upgraded N52, N54 and N55 engines. Once the engine is fully warmed up the Mishimoto Racing Thermostat will open up at a lower temperature than the stock thermostat, allowing the coolant to flow through the engine sooner thus reducing and maintaining cooler engine temperatures.

Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.



Note Vehicle must be equipped with stock plastic thermostat housing in order to install this thermostat. If the car still has a metal thermostat housing, BMW 11537549476 or BMW 11537601158 must be purchased in order to install thermostat.
The metal pin must be carefully removed from the Mishimoto thermostat with pliers before installed into plastic thermostat housing.

Purchase Includes (1) Mishimoto Thermostat
(2) O-rings
Mishimoto Lifetime Warranty

Install Torque Specs 7 ft/lbs for the three T30 bolts which secure the plastic housing components

Engine Codes N52

Chassis Codes Click here to see specific chassis codes

Fits Click here to see specific model fitments.

Mishimoto Activation Temp (Fahrenheit) 165°F

Mishimoto Activation Temp (Celsius) 74°C


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