• Features(For detailed and accurate compatibility information, please refer to the image content)
  • Premium Quality: The thermostat assembly is made of reinforced material to allow for long-term use, which has high sealing performance and high temperature resistance. And it has undergone durability testing according to strict manufacturing standards and undergoes extensive testing before leaving the factory for reliable performance.excellent performance throughout usage
  •  
  • Coolant Thermostat for GMC Yukon Cadillac Escalade Chevy Silverado Suburban

    Features(For detailed and accurate compatibility information, please refer to the image content)

    Premium Quality: The thermostat assembly is made of reinforced material to allow for long-term use, which has high sealing performance and high temperature resistance. And it has undergone durability testing according to strict manufacturing standards and undergoes extensive testing before leaving the factory for reliable performance.excellent performance throughout usage

     

    Stable performance: The thermostat assembly can regulate the flow of coolant to the radiator and adjust the heat dissipation capacity to ensure that the engine operates within the appropriate temperature range, ensuring effective cooling and preventing any overheating issues, thereby promoting the overall health and service life of the engine.

     

    Directly Replace: The thermostat assembly is designed to match the function, which can directly replace original part and work like the original one

     

    EASE OF INSTALLATION: Save time and effort with pre-assembled components designed as direct replacements for the original equipment, ensuring precise fit and eliminating the need for modifications. has been rigorously tested before leaving the factory to ensure that there are no quality problems

     

    PROFESSIONAL SERVICE: Your 100% satisfaction is always the No.1 priority to us. Feel free to contact us directly if you have any questions. We aim to provide you the best product and service.

     

    [Benefits]: We use quality materials and superb technology to ensure that the coolant thermostat housing assembly has high performance when it starts to work. With the featuring of corrosion resistance, durability, stability and long lifespan.we recommend seeking professional installation at a specialized facility,Good insulation effect in cold winter: keep closed at low temperatures to avoid low water temperature and warm air not heating up

     

    Optimized for Engine Efficiency:The lightweight material contributes to overall vehicle weight reduction and provides excellent thermal insulation, supporting rapid engine warm-up for improved fuel efficiency

     

     

    Practical Functions: This engine coolant thermostat housing assembly can regulate engine temperature and maintain it at an optimal level by controlling the flow of coolant through the radiator, thereby resolving issues such as engine malfunction indicator lamp illumination, unstable operation, or engine overheating or undercooling

     

    Why Choose Our Product: Each unit undergoes thorough pressure and fitment checks to ensure structural integrity and dimensional accuracy. Experience the peace of mind that comes with lifetime  warranty.

     

     

    What Are the Signs of a Failing Thermostat?

    Overheating (or overcooling)

    Coolant leaking

    Erratic temperature changes

    Strange sounds

    Heater problems

     

    How to Replace a Thermostat in a Car

    Part 1 Removing the Old Thermostat

    1. Wait for the engine to cool down if you drove recently.

    2. Take the cap off of your radiator.

    3. Put a drip pan underneath your radiator’s drain plug.

    4. Drain half of the coolant out from your radiator’s drain valve.

    5. Unbolt the thermostat housing from the engine block with a ratchet.

    6. Pull the old thermostat out with a pair of pliers.

     

    Part 2 Installing the New Thermostat

    1. Get a replacement thermostat and gasket with the same heat rating.

    2. Remove any residue from the housing and engine flanges with a scraper.

    3. Put the thermostat in the engine flange so the valve points up.

    4. Line the new thermostat gasket up on the flange.

    5. Bolt the housing back onto the engine.

     

    Part 3 Refilling the Coolant

    • Pour coolant into the reservoir up to the fill line.
    • Screw on the radiator cap to seal it.
    • Start your vehicle’s engine to run coolant through the system.
    • Top off your coolant once your engine cools down again.

     

    Fitment:

     

    For 2015-2020 Cadillac Escalade
    For 2014-2019 Chevrolet Silverado
    For 2015-2020 Chevrolet Suburban
    For 2015-2020 Chevrolet Tahoe
    For 2014-2019 GMC Sierra
    For 2015-2020 GMC Yukon

     

    PART NUMBERS: 

     

    12674639 ; 12650534 ; 12650536 ; 12657137 ; 12666569 ; 12671393

     

    Package Include:

     

    1x Water Pump Outlet + Thermostat


    Item Specifics
    Brand SPARKWHIZ
    Type Thermostat 12674639
    Lifetime Over 50000 hours
    Manufacturer Part Number 12674639 GM12671393 12666569 12650534 12671393 12650536
    OE/OEM Part Number 12674639 GM12671393 12666569 12650534 12671393 12650536
    About after-sales Money back or replacement(Buyer's choice)
    Material Plastic
    Manufacturer Warranty Lifetime
    Features Easy Installation
    Interchange Part Number 12674639
    Superseded Part Number 12674639 GM12671393 12666569 12650534 12671393 12650536
    Opening Temperature 98°C / 208.4°F
    Features 2 Durability Tested
    Note No instructions included, Professional installation recommended
    Universal Fitment No
    Fitment Type Direct Replacement
    Performance Part No
    Items Included Temperature Sensor
    Funtion save fuel costs
    Funtion 1 Improve fuel efficiency
    Fitment1 For 2015-2020 Cadillac Escalade
    Fitment2 For 2014-2019 Chevrolet Silverado
    Fitment3 For 2015-2020 Chevrolet Suburban
    Fitment4 For 2015-2020 Chevrolet Tahoe
    Fitment5 For 2014-2019 GMC Sierra
    Fitment6 For 2015-2020 GMC Yukon
    color Black
    Features 6 100% Leak Tested
    Replaces part number 15-11125 ‎12674639 12666569 12657137
    Item Length 5.12"
    Item Width 3.62"
    Item Height 1.34"
    Grade Type Regular
    Gasket Type O-Ring
    Vintage Part No
    Number Of Outlet Ports 2
    Item Weight 0.34 kg / 0.75 lb
    Number of Bolt Holes 3
    Number of Seals 1
    Mounting Hardware Included No

    Payment

    We accept Payoneer/Paypal/Google Pay/Visa/Master Card/Amex/Discover for Payment

    Payment must be received within 7 business days of auction closing.

    We ship to ebay's address only. Please make sure your address in EBAY is matched with your shipping address before you pay.

    TOTAL AMOUNT DUE includes the final auction price plus S&H (Shipping and Handling).

    S&H will be determined based upon the ship to address.

    Shipping

    Order will be handled within 1 working days( Excluding Weekends and Public Holidays) after your payment clear.

    We ship to Order Detail confirmed address ONLY. Transit times are provided by the carrier, exclude weekends and holidays, and may vary with package origin and destination, particularly during peak periods.

    Please obtain the RMA number & returned address for any return items.

    Return items MUST have all ORIGINAL packaging and accessories.

    We will replace items which are malfunctioning, for 60 days from the date you received.Items which have physical abuse are not covered by the warranty. 

    Returns
    How to send a return request:
     

    1.Attention: Please contact us first before starting a return request.

     

    2. Select a reason: please choose"It's the wrong size or doesn't fit".

    Contact Us

    If you return an item purchased from us, it must be back in Factory Condition. This includes packaging, inserts, manuals etc. Please allow up to 5 Working Days for us to process your returned item.Thanks!

     

    Coolant Thermostat for GMC Yukon Cadillac Escalade Chevy Silverado Suburban


    We accept Payoneer/Paypal/Google Pay/Visa/Master Card/Amex/Discover for Payment

    Payment must be received within 7 business days of auction closing.

    We ship to ebay's address only. Please make sure your address in EBAY is matched with your shipping address before you pay.

    TOTAL AMOUNT DUE includes the final auction price plus S&H (Shipping and Handling).

    S&H will be determined based upon the ship to address.

    Order will be handled within 1 working days( Excluding Weekends and Public Holidays) after your payment clear.

    We ship to Order Detail confirmed address ONLY. Transit times are provided by the carrier, exclude weekends and holidays, and may vary with package origin and destination, particularly during peak periods.

    Please obtain the RMA number & returned address for any return items.

    Return items MUST have all ORIGINAL packaging and accessories.

    We will replace items which are malfunctioning, for 60 days from the date you received.Items which have physical abuse are not covered by the warranty. 

    How to send a return request:
     

    1.Attention: Please contact us first before starting a return request.

     

    2. Select a reason: please choose"It's the wrong size or doesn't fit".

    If you return an item purchased from us, it must be back in Factory Condition. This includes packaging, inserts, manuals etc. Please allow up to 5 Working Days for us to process your returned item.Thanks!

     


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    On Jul 8, 2026 at 00:21:18 PDT, seller added the following information:

    Datacaciques