Mishimoto BMW M52/M54/M56 Racing Thermostat


  • $48.00
  • Save $12

Product Introduction

  • Mishimoto has developed a racing thermostat engineered specifically for the 1999–2006 BMW E46 323i / 325i / 328i / 330i (fits all M52 / M54 / M56 engines).
  • Mishimoto racing thermostats will significantly lower high engine temperature produced by modified and upgraded M52 / M54 / M56 engines.
  • Once the engine is fully warmed up the Mishimoto Racing E46 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.
  • And improving long term reliability of your vehicle’s cooling components.

Features and Benefits Of This Product

  • Direct fit for All BMW E46 / any BMW vehicle with M52 / M54 / M56 sulev engine
  • Activates at earlier at 158°F / 70°C, to keep you engine's coolant at a lower temperature for aggressive street or track driving
  • Fits into stock thermostat housing
  • Mishimoto Lifetime Warranty

This Product Fits:

  • 1999–2006 BMW E46 323i / 325i / 328i / 330i
  • 2001–2006 BMW E53 X5 (6cyl engine only)
  • 2004–2006 BMW E83 X3
  • 1999–2002 BMW E36/7 Z3
  • 2003–2006 BMW E85/E86 Z4

Notes / Warnings

  • Vehicle must be equipped with stock plastic thermostat housing (Genuine BMW 11537509227) in order to install this thermostat.
  • The metal pin must be carefully removed from the Mishimoto thermostat with pliers before installed into plastic thermostat housing.

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