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Hummer 20842596 Antenna Mast

2005-2010 Hummer

Customer Questions & Expert Answers (2)
20842596 GM Antenna Mast Product Photo 1 of 2
  • Part Description
    Antenna, Power Radio Antenna
  • Replaces
    10335503, 25912948
  • Manufacturer
    General Motors
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Hummer
    Manufacturer Part Number20842596
    Part DescriptionAntenna Mast; Antenna, Power Radio Antenna
    Item Dimensions3.7 x 1.5 x 0.8 inches
    Item Weight0.30 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces10335503, 25912948
    ManufacturerGeneral Motors
    SKU20842596
    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
    2005-2009 Hummer H28 Cyl 6.0L, 8 Cyl 6.2L, 8 Cyl 6.2L FlexPICKUP, SUV
    2006-2010 Hummer H35 Cyl 3.5L, 5 Cyl 3.7L, 8 Cyl 5.3LCREW CAB, SUV
    2009-2010 Hummer H3T5 Cyl 3.7L, 8 Cyl 5.3LCREW CAB, SUV
  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you.
    A:
    You can Select Your Vehicle to check if 20842596 fits your vehicle.
    Posted and answered by GM Parts Specialist Henry
    Q:
    How to remove the Antenna mast on Chevrolet Colorado? Posted by Vitaly L.
    A:
    To remove the antenna mast, use a small open-end wrench to unscrew it. Take care to avoid scratching the body by surrounding the base with masking tape. If the antenna base/cable assembly needs to be replaced, remove the glove compartment, right door sill plate, right kick panel, and detach the lower rear portion of the inner fender liner. Disconnect the antenna mast cable from the radio cable and attach a fish wire to the end of the cable. Pass the cable and grommet through the hole in the cowl into the fender opening. Then remove the cowl cover and the antenna mast base mounting bolts.
    You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Julian / Oct 15, 2022

Genuine GM Part 20842596, the Right Choice

To ensure reliability, purchase GM part # 20842596 Antenna Mast. It is sometimes referred to as Hummer Antenna. 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, H3, H3T models.

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