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Hummer 12622316 Water Outlet

2006-2010 Hummer

Customer Questions & Expert Answers (2)
12622316 GM Water Outlet Product Photo 1 of 13
  • Part Description
    Housing, Engine Coolant Thermostat
  • Replaces
    12620113, 12579956
  • Manufacturer
    General Motors
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Hummer
    Manufacturer Part Number12622316
    Part DescriptionWater Outlet; Housing, Engine Coolant Thermostat
    Item Dimensions6.7 x 4.5 x 4.6 inches
    Item Weight1.00 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12620113, 12579956
    ManufacturerGeneral Motors
    SKU12622316
    WarrantyThis genuine GM part is guaranteed by GM's factory warranty.
    Shipping & ReturnShipping Policy Return Policy
    Warning: California's Proposition 65
  • Vehicle Fitment

    Year Make Model Engine Important vehicle option details
    2006-2010 Hummer H35 Cyl 3.5L, 5 Cyl 3.7LCREW CAB, SUV
    2009-2010 Hummer H3T5 Cyl 3.7LCREW CAB, SUV
  • Customer Questions & Expert Answers

    Q:
    I'm wondering if this is complete and correct part for my vehicle.
    A:
    You can Select Your Vehicle to check if 12622316 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How to diagnose and replace a Thermostat in the cooling system on GMC Canyon? Posted by Tsani B.
    A:
    Before assuming the thermostat is bad, check the coolant level, the drive belt tension, and the temperature gauge operation. Start disconnecting the cable from the negative terminal of the battery and draining the cooling system. Then, locate the thermostat housing by following the lower radiator hose to the engine. Remove the bolts and detach the thermostat housing, cleaning the mating surfaces on the engine and the housing. Install a new O-ring in the housing and reattach it to the engine, tightening the bolts to the proper torque specifications. Finally, refill the cooling system, check for leaks, and repeat the steps to ensure the repairs have resolved the previous problem(s).
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jose / Oct 17, 2022

Genuine GM Part 12622316, the Right Choice

To ensure reliability, purchase GM part # 12622316 Water Outlet. It is sometimes referred to as Hummer Thermostat, Hummer Thermostat Housing. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific Hummer H3, H3T models.

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