WMPHE Engine Coolant Thermostat Housing Assembly Replacement for GM Trucks and SUVs (2014-2020) | 15-11125 12674639
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Description
xPremium replacement for stable engine cooling
The WMPHE Engine Coolant Thermostat Housing Assembly is engineered to match OE specifications, delivering a direct-fit replacement that integrates with existing plumbing and sensors as if it were the original part. It features an open temperature of 208°F (98°C), a value that supports steady engine heat under a wide range of driving conditions without abrupt temperature fluctuations.
With thoughtful design and quality materials, this assembly aims to restore reliable cooling system operation while keeping the installation process straightforward for qualified DIY enthusiasts and professional technicians alike.
Key benefits
- Direct OE-fit geometry and sealing, minimizing fitment issues and hose misalignment
- Quality construction that stands up to typical road conditions and daily driving stress
- Open temperature of 208°F / 98°C helps the engine reach and maintain a stable operating range
- Designed to respond to thermostat valve movement, potentially reducing the risk of coolant warnings and overheating
- OE part numbers 15-11125 and 12674639 reference for compatibility across listed models
Fitment and compatibility
- Fits Chevrolet Silverado 1500 (2014–2018), Silverado 1500 LD (2019), Silverado 2500 (2014–2018)
- Fits Suburban (2015–2020), Tahoe (2014–2020), Corvette (2014), Cheyenne (2014–2018)
- GMC Sierra 1500 Limited (2019), Sierra 1500 (2014–2018), Sierra (2014–2018), Yukon XL (2015–2020)
- Yukon (2014–2020), Cadillac Escalade ESV (2015–2020), Escalade (2015–2020)
Note: Please verify that this accessory matches your vehicle’s year and model. Proper installation is best performed with professional guidance to ensure secure connections and correct valve operation.
What to expect during installation
While the replacement is designed to align with factory specifications, the process requires familiarity with cooling system components. If you’re not a trained technician, consider scheduling service with a qualified professional to help ensure a clean, leak-free install and proper sensor seating.
In everyday use, drivers may notice improved consistency in temperature management, especially after replacing a thermostat housing that showed signs of sticking or minor leaks. This part supports a straightforward maintenance path toward preserving engine health and predictable cooling behavior.
FAQ
Q: What is included with the WMPHE Engine Coolant Thermostat Housing Assembly Replacement?
A: A direct replacement thermostat housing, designed to OE specs (15-11125, 12674639), for 2014–2020 GM trucks and SUVs.
Q: Is professional installation recommended?
A: Yes. This part requires specialized knowledge; consult a professional technician to ensure proper fit and secure connections.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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