Life time Warranty
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  • Direct fit for BMW M52, M54, and M56 engines
  • Opens at stock temperature to restore cooling system performance
  • Thermostat pre-installed in OEM-style housing
  • Includes thermostat housing gasket
  • Mishimoto Lifetime Warranty


Mishimoto has developed a direct-fit replacement thermostat for the BMW M52, M54, and M56 engines. This Mishimoto thermostat is the ideal replacement for your failed stock thermostat. Our thermostat comes pre-installed in a durable OEM-quality housing and fits many BMWs including E46, E39, and E85 chassis. Like all Mishimoto cooling products, this BMW M52, M54, and M56 thermostat is backed by our Mishimoto Lifetime Warranty.

Purchase Includes

(1) Mishimoto Thermostat w/ Housing and Sensor--(1) Thermostat Housing Gasket--Mishimoto Lifetime Warranty
More Information
Applications1999-2000 BMW 323i (all body types)--2000 BMW 323Ci (all body types)--2001-2006 BMW 325Ci (all body types)--2001-2005 BMW 325i (all body types)--2001-2005 BMW 325xi (all body types)--1999-2000 BMW 328i (all body types)--2000 BMW 328Ci (all body types)--2001-2005 BMW 330i (all body types)--2001-2005 BMW 330xi (all body types)----2001-2005 BMW 525i (all body types)--1999-2000 BMW 528i (all body types)--2001-2005 BMW 530i (all body / chassis types)----2001-2006 BMW X5 (6cyl engine only)--2004-2006 BMW X3----1998-2002 BMW Z3 (from 9/1998)--2003-2005 BMW Z4
Engine CodesM52--M52TUB25--M52TUB28--M54--M54B25--M54B30--M56
Chassis CodesE46--E39--E60--E53--E83--E85--E86--E36 (Z3 models only)
Mishimoto Activation Temperature (F)206
OEM Activation Temperature (F)206

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.