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Mishimoto BMW M52/M54/M56 Racing Thermostat w/Housing - 70 Deg. C

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$135.95
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Mishimoto has developed a performance low-temp racing thermostat for the BMW M52, M54, and M56 engines. This Mishimoto racing thermostat is ideal for modified engines that demand more from their cooling systems. Our thermostat begins opening 48F (27C) earlier than the stock thermostat to allow coolant to flow into your radiator and begin shedding heat sooner. This thermostat comes pre-installed in a durable OEM-quality housing and fits many BMWs including E46, E39, and E85 chassis. Like all Mishimoto performance products, this BMW M52, M54, and M56 thermostat is backed by our Mishimoto Lifetime Warranty.

  • Begins opening 48F (27C) earlier than stock to let coolant flow through your radiator sooner
  • Thermostat pre-installed in OEM-style housing
  • Includes thermostat housing gasket

This Part Fits:

Year Make Model Submodel
2000 BMW 323Ci Base
1999-2000 BMW 323i Base
1999 BMW 323is Base
2001-2006 BMW 325Ci Base
2001-2005 BMW 325i Base
2001-2005 BMW 325xi Base
2000 BMW 328Ci Base
1999-2000 BMW 328i Base
1999 BMW 328is Base
2001-2006 BMW 330Ci Base
2001-2005 BMW 330i Base
2001-2005 BMW 330xi Base
2001-2005 BMW 525i Base
1999-2000 BMW 528i Base
2001-2005 BMW 530i Base
2004-2005 BMW X3 2.5i
2004-2006 BMW X3 3.0i
2001-2006 BMW X5 3.0i
2001-2006 BMW X5 4.4i
2002-2003 BMW X5 4.6is
2004-2006 BMW X5 4.8is
1999-2002 BMW Z3 Coupe
1999-2002 BMW Z3 M Coupe
1999-2002 BMW Z3 M Roadster
1999-2002 BMW Z3 Roadster
2003-2005 BMW Z4 2.5i
2003-2005 BMW Z4 3.0i
2006 BMW Z4 Coupe 3.0si
2006 BMW Z4 M Coupe
2006 BMW Z4 M Roadster
2006 BMW Z4 Roadster 3.0i
2006 BMW Z4 Roadster 3.0si
Mishimoto BMW M52/M54/M56 Racing Thermostat w/Housing - 70 Deg. C

$135.95

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    Portland, Oregon

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    Really pleased with the quality for the price. The product felt premium, worked perfectly out of the box, and was well packaged.

    Jamie Carter
    Manchester, England

Can I return a part after it has been installed?

Generally, installed or used performance parts cannot be returned. We strongly recommend verifying vehicle fitment and inspecting the product before installation.

Can I cancel my order after it has been placed?

We begin processing orders as quickly as possible. If you need to cancel, contact us immediately. Once an order has entered fulfillment, been submitted to a supplier, or shipped, cancellation may no longer be possible.

Will this part fit my vehicle?

Fitment varies by year, make, model, trim, engine, and drivetrain. Use our vehicle fitment information to confirm compatibility. If you're unsure, contact us with your VIN and we'll help verify fitment before you order.

How do I know if this is the right upgrade for my build?

Not every upgrade makes sense for every vehicle or build. Tell us your vehicle, current modifications, and performance goals, and we'll help determine whether this product is a good fit.

Are the products you sell authentic?

Yes. We source products through established manufacturers and authorized distribution channels. We do not sell counterfeit or imitation performance parts.

Is professional installation recommended?

For most performance components, yes. Proper installation is critical for fitment, reliability, and performance. Some products may also require specialized tools, programming, tuning, or additional supporting modifications.