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GMC 19421221 Valve Body

2013-2019 GMC

Customer Questions & Expert Answers (2)
19421221 GM Valve Body Product Photo 1 of 2
  • Part Description
    Body, Transmission Main Control Valve Body
  • Replaces
    24257450, 19421220, 24278012
  • Manufacturer
    General Motors
Make sure this part fits
$431.42 MSRP: $640.47
You Save: $209.05 (33%)
Core Charge: $100.00
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  • Related Parts
  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number19421221
    Part DescriptionValve Body; Body, Transmission Main Control Valve Body
    ConditionNew
    Replaces24257450, 19421220, 24278012
    ManufacturerGeneral Motors
    SKU19421221
    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
    2013-2019 GMC Acadia6 Cyl 3.6LDENALI SUV, SLE SUV, SLE2 & ALL TERRAIN SUV, SLE2 SUV, SLT & ALL TERRAIN SUV, SLT SUV, SLT2 SUV, SPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE 4WD
    2013-2017 GMC Terrain4 Cyl 2.4L, 6 Cyl 3.6LSLE2 SUV, SLT SUV
  • 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 19421221 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What should be done after disconnecting the electrical connectors for the Valve Body in the 2015 Chevrolet Malibu? Posted by Josiel S.
    A:
    Remove the transaxle cover bolts and the cover, adjusting the transaxle position as necessary. Then, disconnect the input, output, and shift position electrical connectors, and remove the control valve solenoid body and TCM assembly bolts, noting their locations for reinstallation. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Jul 02, 2025

Genuine GM Part 19421221, the Right Choice

To ensure reliability, purchase GM part # 19421221 Valve Body. It is sometimes referred to as GMC Valve Body. 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 Acadia, Terrain models.

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