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Chevrolet 12686302 Exhaust Manifold

2007-2020 Chevrolet

Customer Questions & Expert Answers (3)
12686302 GM Exhaust Manifold Illustration 1 of 1
  • Part Description
    Manifold, Engine Exhaust Manifold
  • Replaces
    12677663, 12612084, 12647717
  • Manufacturer
    General Motors
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  • Specifications
  • Fitment
  • Q&A
  • Product Specifications

    BrandGenuine Chevrolet
    Manufacturer Part Number12686302
    Part DescriptionExhaust Manifold; Manifold, Engine Exhaust Manifold
    Item Dimensions24.2 x 9.7 x 8.2 inches
    Item Weight13.50 Pounds
    ConditionNew
    Fitment TypeDirect Replacement
    Replaces12677663, 12612084, 12647717
    ManufacturerGeneral Motors
    SKU12686302
    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
    2008-2020 Chevrolet Express8 Cyl 6.0L, 8 Cyl 6.0L Flex1 TON CARGO EXPRESS, 1 TON COMMERCIAL/RV CUTAWAY, 1 TON PASSENGER, 3/4 TON CARGO EXPRESS, 3/4 TON PASSENGER EXPRESS
    2007-2019 Chevrolet Silverado8 Cyl 6.0L, 8 Cyl 6.0L Flex2500 CREW CAB STANDARD BOX, 2500 REGULAR (CAB ONLY), 2500 REGULAR CAB, 3500 CREW CAB LONG BOX, 3500 CREW CAB ONLY, 3500 CREW CAB STANDARD BOX, 3500 DOUBLE CAB LONG BOX, 3500 REGULAR (CAB ONLY), 3500 REGULAR CAB, CREW CAB 1 TON, CREW CAB 2500 LONG BOX, CREW CAB 6'6" BOX 3/4 TON, CREW CAB 8' BOX 3/4 TON, DOUBLE CAB 2500 LONG BOX, DOUBLE CAB 2500 STANDARD BOX, EXTENDED CAB 1 TON, EXTENDED CAB 6'6" BOX 3/4 TON, EXTENDED CAB 8' BOX 3/4 TON, EXTENDED CAB CHASSIS 1 TON 161.5, REGULAR CAB 1 TON, REGULAR CAB 3/4 TON, REGULAR CAB CHASSIS 1 TON 137.0, REGULAR CAB CHASSIS 1 TON 161.5
    2016-2019 Chevrolet Suburban8 Cyl 6.0L Flex3500 4 DOOR UTILITY
  • 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 12686302 fits your vehicle.
    Posted and answered by GM Parts Specialist Julian
    Q:
    What should be done with the exposed end of the Exhaust Manifold gasket for the 2010 Chevrolet Silverado? Posted by Sierra O.
    A:
    If required, bend the exposed end of the exhaust manifold gasket back against the cylinder head. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Xavier / Apr 25, 2024
    Q:
    What should be done with the spark plug wires in relation to the Exhaust Manifold for the 2009 Chevrolet Silverado? Posted by Mischa Z.
    A:
    Disconnect them and remove them from their retainers, laying them out of the way. You can Select Your Vehicle to see complete installation and repair tips.
    Answered by GM Parts Specialist Nicholas / Jan 03, 2026

Genuine GM Part 12686302, the Right Choice

To ensure reliability, purchase GM part # 12686302 Exhaust Manifold. It is sometimes referred to as Chevrolet 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 Chevrolet Express, Silverado, Suburban models.

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