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Upgrade your BMW's cooling system with the Mishimoto BMW N52/N54/N55 Racing Thermostat, designed to enhance engine temperature regulation for models equipped with these engines. This high-performance thermostat is engineered to open at a lower temperature than the stock unit, allowing coolant to circulate earlier in the warm-up cycle and maintain cooler operating temperatures during high-performance driving or modified engine setups. Proper temperature management is critical for engine longevity and optimal performance, and Mishimoto's racing thermostat ensures your vehicle stays within ideal temperature ranges under demanding conditions. Constructed with precision and quality, it offers reliable operation and durability for extended use.
The Mishimoto BMW Racing Thermostat is compatible with a broad range of BMW models, including 2004-2008 3 Series, 2005-2008 3 Series, and 2007-2008 5 Series, among others, ensuring a seamless fit for your specific vehicle. Its installation process is straightforward, and it is designed to activate at a lower temperature to facilitate early coolant flow, effectively reducing the risk of overheating during aggressive driving or after modifications. This product is backed by Mishimoto’s lifetime warranty, reflecting their confidence in its quality and performance. Whether you are upgrading for racing purposes or simply seeking improved cooling efficiency, this thermostat is an essential component for maintaining the health and performance of your BMW’s engine.
Made with high-quality materials, this thermostat is built to withstand the rigors of high-performance driving and harsh conditions. Its precise engineering ensures consistent operation, and its compatibility with multiple BMW models makes it a versatile choice for enthusiasts and professional mechanics alike. Trust Mishimoto's expertise and commitment to quality to keep your engine running cooler and more efficiently under demanding circumstances, extending the lifespan of your engine components and enhancing your driving experience.
Features:
Fitment:
2004 BMW 325i Base
2004 BMW 325xi Base
2004 BMW 525i Base
2005 BMW 325i Base
2005 BMW 325xi Base
2005 BMW 330i Base
2005 BMW 330xi Base
2005 BMW 525i Base
2005 BMW 530i Base
2005 BMW Z4 3.0i
2006 BMW 325i Base
2006 BMW 325xi Base
2006 BMW 330i Base
2006 BMW 330xi Base
2006 BMW 525i Base
2006 BMW 525xi Base
2006 BMW 530i Base
2006 BMW 530xi Base
2006 BMW X3 3.0i
2006 BMW Z4 Coupe 3.0si
2007 BMW 328i Base
2007 BMW 328xi Base
2007 BMW 335i Base
2007 BMW 335xi Base
2007 BMW 525i Base
2007 BMW 525xi Base
2007 BMW 530i Base
2007 BMW 530xi Base
2007 BMW X3 3.0si
2007 BMW Z4 Coupe 3.0si
2008 BMW 128i Base
2008 BMW 135i Base
2008 BMW 328i Base
2008 BMW 328xi Base
2008 BMW 335i Base
2008 BMW 335xi Base
2008 BMW 528i Base
2008 BMW 528xi Base
2008 BMW X3 3.0si
2008 BMW Z4 Coupe 3.0si
2009 BMW 128i Base
2009 BMW 135i Base
2009 BMW 328i Base
2009 BMW 335i Base
2009 BMW 528i Base
2009 BMW Z4 sDrive30i
2009 BMW Z4 sDrive35i
2010 BMW 128i Base
2010 BMW 135i Base
2010 BMW 328i Base
2010 BMW 335i Base
2010 BMW 528i Base
2010 BMW Z4 sDrive30i
2010 BMW Z4 sDrive35i
2011 BMW 1 Series M Base
2011 BMW 128i Base
2011 BMW 135i Base
2011 BMW 328i Base
2011 BMW 335i Base
2011 BMW 335is Base
2011 BMW X5 xDrive35i
2011 BMW X6 xDrive35i
2011 BMW Z4 sDrive30i
2011 BMW Z4 sDrive35i
2011 BMW Z4 sDrive35is
2012 BMW 128i Base
2012 BMW 135i Base
2012 BMW 328i Base
2012 BMW 335i Base
2012 BMW 335is Base
2012 BMW X5 xDrive35i
2012 BMW X6 xDrive35i
2012 BMW Z4 sDrive35i
2012 BMW Z4 sDrive35is
2013 BMW 128i Base
2013 BMW 135i Base
2013 BMW 328i Base
2013 BMW 335i Base
2013 BMW 335is Base
2013 BMW X1 xDrive35i
2013 BMW X5 xDrive35i
2013 BMW X6 xDrive35i
2013 BMW Z4 sDrive35i
2013 BMW Z4 sDrive35is
2014 BMW X1 xDrive35i
2014 BMW Z4 sDrive35i
2014 BMW Z4 sDrive35is
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
