Make sure this part fits

Chevrolet 12491880 Transmission Asm,Auto 4Tpd (Goodwrench Remanufacture)

2004 Chevrolet Colorado

Customer Questions & Expert Answers (3)
12491880 GM Transmission Asm,Auto 4Tpd (Goodwrench Remanufacture) Illustration 1 of 1
  • Part Description
    TRANSMISSION, Manual(5 Speed)
  • Manufacturer
    General Motors
  • Manufacturer's Notes
    This part is discontinued.
Make sure this part fits
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Chevrolet
    Manufacturer Part Number12491880
    Part DescriptionTRANSMISSION, Manual(5 Speed)
    Other NamesTransmission
    Item Dimensions46.2 x 23.2 x 24.9 inches
    Item Weight120.00 Pounds
    ConditionRemanufactured
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12491880
    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
    2004 Chevrolet Colorado5 Cyl 3.5LCREW CAB, EXTENDED CAB, EXTENDED LENGTH, PICKUP
  • 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 12491880 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What are the initial steps to prepare for the removal of the Transmission Assembly for the 2004 Chevrolet Colorado? Posted by Willington V.
    A:
    Start by disconnecting the cable from the negative terminal of the battery. Then, raise the vehicle and support it securely on jackstands. If necessary, remove the skid plate and skid plate crossmember. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Oct 13, 2025
    Q:
    Can a do-it-yourselfer handle the removal and installation of a Transmission Assembly for the 2004 GMC Canyon? Posted by Denis N.
    A:
    Yes, a competent do-it-yourselfer can remove and install the transmission if problems arise, but the overhaul is best left to a transmission repair shop. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jose / Jun 02, 2022

Genuine GM Part 12491880, the Right Choice

To ensure reliability, purchase GM part # 12491880 Transmission Asm,Auto 4Tpd (Goodwrench Remanufacture). It is sometimes referred to as Chevrolet 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 Colorado models.

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