Free Shipping Qualifying Orders Over $199 *
Secure Checkout
Shop by your truck
2020-2023 6.6L L5P Duramax Thermostat Housing to Head Gasket GM 12643149

Thumbnail Filmstrip of 2020-2023 6.6L L5P Duramax Thermostat Housing to Head Gasket GM 12643149 Images

    Sealing the thermostat housing to head is critical for the longevity and performance of your 2017-2024 L5P Duramax engine. The GM 12643149 Thermostat Housing to Head Gasket is engineered to provide a precise seal, preventing coolant leaks that can lead to overheating and costly engine damage. By choosing this genuine GM part, you're investing in the proven quality and reliability that your Duramax deserves, ensuring optimal engine temperature regulation and peace of mind on every journey.

    • Precision Sealing: Specifically designed to seal the gap between your thermostat housing and engine head, preventing coolant leakage.
    • Engine Protection: Safeguards against overheating and potential engine damage by maintaining proper coolant levels and circulation.
    • Genuine GM Quality: Manufactured and rigorously tested to General Motors' exacting standards, guaranteeing a perfect fit and reliable performance.
    • L5P Duramax Compatibility: Engineered for a seamless fit with 2017-2024 L5P Duramax engines.

    Don't compromise on the health of your engine. The GM 12643149 Thermostat Housing to Head Gasket is a testament to genuine GM engineering, offering unparalleled fit, function, and durability. Protect your investment and maintain the peak performance of your L5P Duramax by choosing the part that was designed with your vehicle in mind.
    Purchase 2020-2023 6.6L L5P Duramax Thermostat Housing to Head Gasket GM 12643149

    Not Yet Rated!

    2020-2023 6.6L L5P Duramax Thermostat Housing to Head Gasket GM 12643149

    SKU: gmc12643149
    $7.70

    Qualifies for Free Shipping Over $199



    Fits: L5P Duramax 2020-2023
     
    Free shipping on orders over $199**Contiguous US only
    Most in-stock orders ship in 1–2 business days
    Diesel experts: 615-962-8291

    Sealing the thermostat housing to head is critical for the longevity and performance of your 2017-2024 L5P Duramax engine. The GM 12643149 Thermostat Housing to Head Gasket is engineered to provide a precise seal, preventing coolant leaks that can lead to overheating and costly engine damage. By choosing this genuine GM part, you're investing in the proven quality and reliability that your Duramax deserves, ensuring optimal engine temperature regulation and peace of mind on every journey.


    Precision Sealing: Specifically designed to seal the gap between your thermostat housing and engine head, preventing coolant leakage.
    Engine Protection: Safeguards against overheating and potential engine damage by maintaining proper coolant levels and circulation.
    Genuine GM Quality: Manufactured and rigorously tested to General Motors' exacting standards, guaranteeing a perfect fit and reliable performance.
    L5P Duramax Compatibility: Engineered for a seamless fit with 2017-2024 L5P Duramax engines.



    Don't compromise on the health of your engine. The GM 12643149 Thermostat Housing to Head Gasket is a testament to genuine GM engineering, offering unparalleled fit,[...]

    Sealing the thermostat housing to head is critical for the longevity and performance of your 2017-2024 L5P Duramax engine. The GM 12643149 Thermostat Housing to Head Gasket is engineered to provide a precise seal, preventing coolant leaks that can lead to overheating and costly engine damage. By choosing this genuine GM part, you're investing in the proven quality and reliability that your Duramax deserves, ensuring optimal engine temperature regulation and peace of mind on every journey.

    • Precision Sealing: Specifically designed to seal the gap between your thermostat housing and engine head, preventing coolant leakage.
    • Engine Protection: Safeguards against overheating and potential engine damage by maintaining proper coolant levels and circulation.
    • Genuine GM Quality: Manufactured and rigorously tested to General Motors' exacting standards, guaranteeing a perfect fit and reliable performance.
    • L5P Duramax Compatibility: Engineered for a seamless fit with 2017-2024 L5P Duramax engines.

    Don't compromise on the health of your engine. The GM 12643149 Thermostat Housing to Head Gasket is a testament to genuine GM engineering, offering unparalleled fit, function, and durability. Protect your investment and maintain the peak performance of your L5P Duramax by choosing the part that was designed with your vehicle in mind.
    No Questions asked yet!



    Review 2020-2023 6.6L L5P Duramax Thermostat Housing to Head Gasket GM 12643149
    No Reviews Yet!