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Mishimoto 15-19 BMW M3/M4 Racing Thermostat - 100C

  • Fitment verified for YOUR exact year/model/trim
  • Not sure? Ask a Tech (takes 5 min, we confirm before you order)
  • Damage replacement + 30-day returns
Mishimoto  |  SKU: MISMMTS-F80-15
Shipping

Most orders ship in 3-5 days

$139.95 $154.00
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One Year WarrantyOne Year Warranty
Final cost may change with address, discounts, or cart changes.
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The Mishimoto racing thermostat for the BMW M3/M4 2015+ F8X and G8X is designed to help your cooling system operate at peak efficiency, whether you're cruising to your local car meet or tearing up the track. Our thermostat begins to open 9°F (5°C) earlier than the stock thermostat at 212°F (100°C). That allows precious coolant to flow into the radiator and start shedding heat sooner. Couple this thermostat with a Mishimoto performance aluminum radiator and you have the recipe for an engine that runs cool no matter the situation. This thermostat includes an OEM-quality housing and like all of our thermostats, this BMW M3/M4 2015+ F8X and G8X thermostat is backed by our Mishimoto Lifetime Warranty.

This Part Fits:

Year Make Model Submodel
2017 BMW 530i Base
2017 BMW 540i Base
2004-2005 BMW 545i Base
2006-2016 BMW 550i Base
2010-2015 BMW 550i GT Base
2010-2017 BMW 550i GT xDrive Base
2011-2016 BMW 550i xDrive Base
2004-2005 BMW 645Ci Base
2006-2010,2012-2018 BMW 650i Base
2013-2019 BMW 650i Gran Coupe Base
2012-2018 BMW 650i xDrive Base
2013-2019 BMW 650i xDrive Gran Coupe Base
2002-2005 BMW 745i Base
2002-2005 BMW 745Li Base
2011-2012 BMW 750i ActiveHybrid
2006-2015 BMW 750i Base
2010-2015 BMW 750i xDrive Base
2011-2012 BMW 750Li ActiveHybrid
2006-2015 BMW 750Li Base
2010-2015 BMW 750Li xDrive Base
2004-2006 BMW 760i Base
2023-2024 BMW 760i xDrive Base
2003-2008,2010-2015 BMW 760Li Base
2015-2019 BMW Alpina B6 xDrive Gran Coupe Base
2007-2008,2011-2015 BMW Alpina B7 Base
2011-2015 BMW Alpina B7 xDrive Base
2011-2015 BMW Alpina B7L Base
2011-2015 BMW Alpina B7L xDrive Base
2023 BMW Alpina XB7 Base
2016-2018,2023 BMW M2 Base
2019-2021 BMW M2 Competition
2020 BMW M2 CS
2015-2018,2021-2024 BMW M3 Base
2021-2024 BMW M3 Competition
2022-2024 BMW M3 Competition xDrive
2024 BMW M3 CS
2015-2024 BMW M4 Base
2021-2024 BMW M4 Competition
2021-2024 BMW M4 Competition xDrive
2019-2020 BMW M4 CS
2023 BMW M4 CSL
2016 BMW M4 GTS
2013-2016,2018-2023 BMW M5 Base
2019-2021 BMW M5 Competition
2022 BMW M5 CS
2020 BMW M5 Edition 35 Years
2012-2018 BMW M6 Base
2014-2019 BMW M6 Gran Coupe Base
2017-2022 BMW M760i xDrive Base
2020 BMW M8 Base
2020,2022-2024 BMW M8 Competition
2020-2021 BMW M8 Gran Coupe Base
2020-2024 BMW M8 Gran Coupe Competition
2020-2024 BMW X3 M
2020-2022 BMW X3 M Competition
2020-2024 BMW X3 M40i
2020-2024 BMW X4 M
2020-2022 BMW X4 M Competition
2020-2024 BMW X4 M40i
2007-2008 BMW X5 3.0si
2004-2006 BMW X5 4.4i
2007-2008 BMW X5 4.8i
2004-2006 BMW X5 4.8is
2010-2013,2015-2018,2020-2023 BMW X5 M
2020,2024 BMW X5 M Competition
2020-2023 BMW X5 M50i
2024 BMW X5 M60i
2009 BMW X5 xDrive30i
2009-2010 BMW X5 xDrive48i
2011-2020 BMW X5 xDrive50i
2010-2011 BMW X6 ActiveHybrid
2010-2023 BMW X6 M
2020-2021,2024 BMW X6 M Competition
2020-2023 BMW X6 M50i
2024 BMW X6 M60i
2008-2019 BMW X6 xDrive50i
2023-2024 BMW X7 M60i
2023-2024 BMW XM Base
2024 BMW XM Label

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Warranty Assurance:

At K2 Industries, your satisfaction is our priority, and we stand behind the quality of our products. Here's a brief overview of our warranty:

Defect Coverage:
If you find a defect after receiving your order, get in touch with us. We're committed to resolving the issue, whether it involves a replacement, repair, or refund.

Installation Note:
Please inspect your purchase before installation. Unfortunately, damages post-installation are not covered, so ensure everything looks good beforehand.

Claims Made Simple:
Need to make a claim? Reach out to us at support@k2-industries.com. We're here to assist you. Just keep your original packaging and documentation handy.

Your Satisfaction Matters:
Your trust in K2 Industries is appreciated. We're dedicated to ensuring your satisfaction with our quality automotive parts.

Shipping Information:

At K2 Industries, we strive to provide a seamless and efficient shopping experience for automotive enthusiasts like you. Our commitment is to deliver high-quality parts to your doorstep with the utmost care.

Fast and Reliable Shipping:
Many of our products are stocked in our local warehouse, ensuring swift processing and delivery. Orders placed for these items typically ship within 2-5 business days, allowing you to get your parts in no time.

Extended Selection, Global Reach:
To offer you a broader range of automotive parts, some items are sourced from trusted suppliers around the world. While these products might have a slightly longer processing time, we assure you that the wait is worth it for the exceptional quality and value they bring.

Shipping Transparency:
For products shipped internationally, we provide estimated delivery times on the product page. Rest assured, we are continually working to optimize our supply chain and minimize any potential delays.

Combined Shipments:
To streamline your shopping experience, if your order includes items from both our local warehouse and international suppliers, they may be shipped separately. You will receive separate tracking information for each shipment.

Questions or Concerns?
If you have any questions about shipping or would like assistance tracking your order, our dedicated customer support team is here to help. Feel free to reach out to us at support@k2-industries.com.

You can also track your order here

Thank you for choosing K2 Industries for your automotive needs. We appreciate your trust in us.

  • One-stop shop for mods across brands/platforms
  • Highest quality, from trusted manufacturers
  • Fitment help from real enthusiasts

What You Get With Every Order

Products Selected to Meet Quality & Fitment Standards we Stand Behind.
Products Selected to Meet Quality & Fitment Standards we Stand Behind.
Get Help From People Who Actually Understand Builds & Fitment.
Get Help From People Who Actually Understand Builds & Fitment.
Designed to Resist UV Exposure, Wear, and Everyday Use.
Designed to Resist UV Exposure, Wear, and Everyday Use.
Join Thousands of Builders Who
Trust K2
Join Thousands of Builders Who Trust K2

Built By Someone Who's Been There

Max, the Owner, started in his garage making E36 M3 tail lights in his own oven.

  • • Started modifying cars before he could legally drive them
  • • Spent years hunting down parts that actually fit and don't suck
  • • Made the same fitment mistakes you're afraid of
Founder photo

What Sets K2 Industries Apart?

We don’t just sell parts. We actually give a damn.
Pre-Order Fitment Verification
Damage Replacement
Real Experts Answer the Phone
Post-Purchase Installation Support
Curated Quality
30-Day Returns
K2 Industries
Other Brands
K2 Industries
Other Brands
Pre-Order Fitment Verification
Damage Replacement
Real Experts Answer the Phone
Post-Purchase Installation Support
Curated Quality
30-Day Returns
Add to Cart
GuaranteePerfect fit guaranteed

See Why Customers Love K2 Industries

Frequently Asked Questions

Why Buy from K2 Industries

What makes K2 Industries more than just a parts supplier?

We’re a team of USA-based car enthusiasts committed to helping you get your build right the first time. With our deep product knowledge and close relationships with trusted manufacturers, we ensure you receive high-quality parts that perform. We’re here to support you before, during, and after your purchase, providing personalized advice, part compatibility checks, and responsive customer service. When you buy from us, you’re joining a community that cares as much about your car as you do.

How do I know which parts are best for my car and goals?

Answer: Our team can provide personalized mod plans to match your performance and style goals. Whether you’re building for speed, aesthetics, or both, we’ll help you select the right parts for your vision. Contact us to discuss your project!

Do You Have Financing Options?

Answer: Yes, we offer flexible financing options to make it easier for you to upgrade your vehicle without paying the full amount upfront. Choose our financing option at checkout to split your purchase into manageable payments, so you can start your build now and pay over time.

Visit our FULL FAQ Page

Shipping

Do you ship overseas?

Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.

How long will it take to receive my order?

It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.

Other

Any question?

You can contact us through our contact page! We will be happy to assist you.