Make sure this part fits

Chevrolet 12491877 Transmission Asm,Auto 4Svd (Goodwrench Remanufacture)

2004 Chevrolet Colorado

Customer Questions & Expert Answers (3)
12491877 GM Transmission Asm,Auto 4Svd (Goodwrench Remanufacture) Illustration 1 of 1
  • Part Description
    TRANSMISSION, Automatic
  • 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 Number12491877
    Part DescriptionTRANSMISSION, Automatic
    Other NamesTransmission
    Item Dimensions46.2 x 22.3 x 24.9 inches
    Item Weight125.70 Pounds
    ConditionRemanufactured
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12491877
    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 Colorado4 Cyl 2.8LCREW 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 12491877 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What components should be disconnected from the Transmission Assembly during removal for the 2004 Chevrolet Colorado? Posted by Melvin G.
    A:
    Disconnect the shift cable, remove the transmission heat shield, and disconnect the vent hose. On the left side of the transmission, disconnect electrical connectors and the fuel line support bracket. Remove the inspection plug and mark the relationship of the torque converter to the driveplate. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jose / Sep 24, 2022
    Q:
    What should be done if the Transmission Assembly will be disassembled for the 2004 GMC Canyon? Posted by Nelia T.
    A:
    Drain the lubricant from the transmission. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / Aug 31, 2025

Genuine GM Part 12491877, the Right Choice

To ensure reliability, purchase GM part # 12491877 Transmission Asm,Auto 4Svd (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.

GMPartsGiant.com is a leading supplier of genuine GM parts and accessories such as GM 12491877 Transmission Asm,Auto 4Svd (Goodwrench Remanufacture). You're certainly in the right place if you're searching for the great cost-effective OEM GM parts. Look no further than our vast inventory of genuine GM parts offered at unbeatable online prices, all of which are backed by the manufacturer's warranty. Not to forget, our hassle-free return policy and quick delivery service ensure a smooth shopping experience for you. For detailed Chevrolet parts information, click here.
Find low prices on genuine OE parts from GM dealerships with fast delivery and dedicated service at GMPartsGiant.com.