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GM 17803777 Transmission

2007-2008 GM

Customer Questions & Expert Answers (3)
17803777 GM Transmission Illustration 1 of 1
  • Part Description
    Transmission, Automatic
  • Replaces
    12491534
  • Manufacturer
    General Motors
Make sure this part fits
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GM
    Manufacturer Part Number17803777
    Part DescriptionTransmission; Transmission, Automatic
    Item Dimensions47.6 x 22.8 x 24.6 inches
    Item Weight200.40 Pounds
    ConditionRemanufactured
    Fitment TypeDirect Replacement
    Replaces12491534
    ManufacturerGeneral Motors
    SKU17803777
    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
    2007 Chevrolet Avalanche1/2 TON
    2008 Chevrolet Express6 Cyl 4.3L1/2 TON CARGO EXPRESS, 1/2 TON PASSENGER EXPRESS
    2007-2008 Chevrolet Silverado6 Cyl 4.3LCREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
    2007 Chevrolet Suburban1/2 TON
    2007 Chevrolet Tahoe4 DOOR 1/2 TON
    2008 GMC Savana6 Cyl 4.3L1/2 TON CARGO EXPRESS, 1/2 TON CARGO SAVANA, 1/2 TON PASSENGER EXPRESS, 1/2 TON PASSENGER SAVANA
    2007-2008 GMC Sierra6 Cyl 4.3LCREW CAB 1/2 TON, EXTENDED CAB 5'8" BOX 1/2 TON, EXTENDED CAB 6'6" BOX 1/2 TON, EXTENDED CAB 8' BOX 1/2 TON, REGULAR CAB 6'6" BOX 1/2 TON, REGULAR CAB 8' BOX 1/2 TON
    2007 GMC Yukon1/2 TON, YUKON/DENALI/ESCALADE
  • 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 17803777 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What should be done before removing the faulty Transmission Assembly for the 2008 Chevrolet Express? Posted by Lacy S.
    A:
    A faulty transmission should not be removed until the vehicle has been evaluated by a knowledgeable technician equipped with the proper tools. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Feb 04, 2025
    Q:
    What are the initial steps to remove the Transmission Assembly for the 2007 Chevrolet Silverado? Posted by Jamarcus T.
    A:
    Disconnect the battery cable and raise the vehicle on jackstands. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Fernando / Apr 27, 2025

Genuine GM Part 17803777, the Right Choice

To ensure reliability, purchase GM part # 17803777 Transmission. It is sometimes referred to as GM Transmission Assembly. 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 Chevrolet Express, Silverado, Tahoe models. It fits GMC Savana, Sierra, Yukon.

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