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Description
xEngine-ready replacement for the 3.6L GM family
Meet a precise replacement for your GM 3.6L engine cooling system. The MILIPARTS thermostat housing is designed to fit a range of models and to restore the reliable coolant flow you expect from OEM components. Built from durable aluminum and crafted to OEM dimensions, this part aims to deliver a seamless fit that helps keep your engine within its optimal temperature window.
Compatibility you can count on
- 2017-2019 Buick LaCrosse 3.6L
- 2017-2023 Cadillac XT5 3.6L
- 2020-2023 Cadillac XT6 3.6L
- 2017-2023 GMC Acadia 3.6L
- 2019-2023 Chevrolet Blazer 3.6L
- 2018-2020 Buick Regal Sportback 3.6L
What’s included
- Thermostat
- Tube
- Gasket
- Thermostat housing
Design, fit, and function
The aluminum thermostat assembly uses original equipment dimensions to support dependable fit and performance. The opening temperature is 203 F, helping regulate coolant flow to the radiator and support consistent engine operation.
Why choose MILIPARTS
If you have questions about fit for your model, our team can help verify compatibility. We encourage you to confirm the exact model in the listing images or message us for assistance.
Real-world use and benefits
Real-world scenarios include routine maintenance during cooling system service, winter readiness, and ongoing engine cooling reliability. Benefits are presented as possibilities based on design and fit rather than promises.
FAQ
Q: Which vehicles is the MILIPARTS 3.6L thermostat housing compatible with?
A: Compatible with Buick LaCrosse (2017-2019), Cadillac XT5 (2017-2023), XT6 (2020-2023), GMC Acadia (2017-2023), Chevrolet Blazer (2019-2023), and Buick Regal Sportback (2018-2020) 3.6L.
Q: What’s included in the kit and what is the opening temperature?
A: Includes thermostat, tube, gasket, and housing; thermostat opens at 203°F.
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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