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Hummer 12637204 Serpentine Belt

2003-2007 Hummer H2

Customer Questions & Expert Answers (3)
12637204 GM Serpentine Belt Product Photo 1 of 6
  • Part Description
    Belt, Drive
  • Replaces
    12557501, 12569348, 12576451
  • Manufacturer
    General Motors
Make sure this part fits
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Hummer
    Manufacturer Part Number12637204
    Part DescriptionSerpentine Belt; Belt, Drive
    Item Dimensions15.8 x 11.4 x 2.0 inches
    Item Weight0.90 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12557501, 12569348, 12576451
    ManufacturerGeneral Motors
    SKU12637204
    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
    2003-2007 Hummer H28 Cyl 6.0LH2 HUMMER, PICKUP, 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 12637204 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    How is the tension of the Drive Belt maintained for the 2007 GMC Sierra? Posted by Cassondra M.
    A:
    The tension of the belt is maintained by a spring-loaded tensioner assembly, which is not adjustable. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / Aug 09, 2025
    Q:
    Where is the Drive Belt located for the 2007 Chevrolet Silverado? Posted by Zello D.
    A:
    The serpentine belt is located at the front of the engine. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Raul / Jan 17, 2023

Genuine GM Part 12637204, the Right Choice

To ensure reliability, purchase GM part # 12637204 Serpentine Belt. It is sometimes referred to as Hummer Drive Belt. 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 H2 models.

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