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GMC 20830781 Control Arm

2010-2017 GMC Terrain

Customer Questions & Expert Answers (3)
20830781 GM Control Arm Illustration 1 of 1
  • Part Description
    Arm, Rear Axle Control Arm
  • Position
    Rear Lower
  • Manufacturer
    General Motors
Make sure this part fits
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number20830781
    Part DescriptionControl Arm; Arm, Rear Axle Control Arm
    Item Dimensions5.6 x 20.2 x 10.9 inches
    Item Weight12.10 Pounds
    PositionRear Lower
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU20830781
    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
    2010-2017 GMC Terrain4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.6LSLE1 SUV, SLE2 SUV, SLT SUV
  • Customer Questions & Expert Answers

    Q:
    I would like to confirm if this is the correct part number for my vehicle. Please advise. Thank you.
    A:
    You can Select Your Vehicle to check if 20830781 fits your vehicle.
    Posted and answered by GM Parts Specialist Henry
    Q:
    What should you do if the front pivot bushing on the Control Arm needs replacement for the 2016 GMC Terrain? Posted by Levente M.
    A:
    If the front pivot bushing needs replacement, have the old bushing pressed out and the new bushing pressed in. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Jeremy / Feb 26, 2025
    Q:
    How do you remove the toe link and Trailing Arm for the 2015 GMC Terrain? Posted by Ladaysha Y.
    A:
    To remove the toe link, start by loosening the rear wheel lug nuts and raising the rear of the vehicle on jackstands. Remove the rear wheel and mark the positions of the inner bolt heads or cam adjusters to the subframe. Then, remove the inner and outer pivot bolts and the toe link. For installation, reverse the removal steps and make sure to align the bolt heads or adjuster cams with the marks made. Before tightening the mounting bolts, raise the outer end of the lower control arm with a floor jack to simulate normal ride height. Tighten the bolts to the specified torque and consider having the wheel alignment checked and adjusted if necessary. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Henry / Jul 04, 2025

Genuine GM Part 20830781, the Right Choice

To ensure reliability, purchase GM part # 20830781 Control Arm. It is sometimes referred to as GMC Control Arm, GMC Trailing Arm. 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 Terrain models.

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