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GMC 12588987 Exhaust Manifold

2007-2017 GMC Acadia

Customer Questions & Expert Answers (3)
12588987 GM Exhaust Manifold Illustration 1 of 1
  • Part Description
    Manifold, Engine Exhaust Manifold
  • Manufacturer
    General Motors
Make sure this part fits
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine GMC
    Manufacturer Part Number12588987
    Part DescriptionExhaust Manifold; Manifold, Engine Exhaust Manifold
    Item Dimensions15.9 x 9.5 x 5.7 inches
    Item Weight7.20 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    ManufacturerGeneral Motors
    SKU12588987
    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
    2007-2017 GMC Acadia6 Cyl 3.6LSPORT UTILITY VEHICLE 2WD, SPORT UTILITY VEHICLE 4WD, SPORT UTILITY VEHICLE AWD
  • 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 12588987 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What should be done if any of the Exhaust Manifold bolts are broken for the 2011 Chevrolet Traverse? Posted by Elijah D.
    A:
    If any of the manifold bolts are broken, it indicates a warped manifold. Have the manifold machined at a cylinder head reconditioning shop before reinstalling it on the vehicle. This is important for a proper seal, and it helps prevent new manifold bolts from breaking. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Bob / Feb 22, 2026
    Q:
    What additional step should be taken when working on the left (front) Exhaust Manifold for the 2017 GMC Acadia? Posted by Jeromey W.
    A:
    If you're working on the left (front) manifold, remove the oil dipstick tube. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Xavier / Feb 11, 2024

Genuine GM Part 12588987, the Right Choice

To ensure reliability, purchase GM part # 12588987 Exhaust Manifold. It is sometimes referred to as GMC Exhaust Manifold. 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 models.

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