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GMC 17803780 Transmission Assembly

2008 GMC Envoy

Customer Questions & Expert Answers (2)
17803780 GM Transmission Assembly Illustration 1 of 1
  • Part Description
    Transmission, Automatic
  • Replaces
    17803944
  • Manufacturer
    General Motors
Make sure this part fits
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number17803780
    Part DescriptionTransmission Assembly; Transmission, Automatic
    Item Dimensions45.8 x 22.3 x 25.3 inches
    Item Weight214.20 Pounds
    ConditionRemanufactured
    Fitment TypeDirect Replacement
    Replaces17803944
    ManufacturerGeneral Motors
    SKU17803780
    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
    2008 GMC Envoy6 Cyl 4.2L4 DOOR
  • 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 17803780 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What are the final steps after securing the Transmission Assembly for the 2008 Chevrolet Trailblazer? Posted by Taylor F.
    A:
    Install the transmission dipstick tube and seal, then install and securely tighten the transmission-to-engine bolts. Raise the rear of the transmission and install the cross member, then remove the jacks. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Dec 12, 2025

Genuine GM Part 17803780, the Right Choice

To ensure reliability, purchase GM part # 17803780 Transmission Assembly. It is sometimes referred to as GMC 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 GMC Envoy models.

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