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Replacement and OEM Parts for 2012 GMC Sierra 3500 HD Exhaust Manifold

2012 GMC Sierra 3500 HD Exhaust Manifold

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2012 GMC Sierra 3500 HD
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Exhaust Manifolds, Pipes & Mufflers
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  • OEM 2012 GMC Sierra 3500 HD Engine Exhaust Manifold Diagram - 12616285
    View Related Parts

    OEM (Genuine) 2012 GMC Sierra 3500 HD Engine Exhaust Manifold

    PartNumber: 12616285
    OEM 2012 GMC Sierra 3500 HD Engine Exhaust Manifold - 12616285
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l; Left
    • Location: Driver Side
    • Other Names: Exhaust Manifold, Manifold
    • Item Dimensions: 10.1 x 8.1 x 25.4 inches
    • Item Weight: 10.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12564155, 12602037, 12571678, 12562235
    • Part Description: 2012 GMC Sierra 3500 HD Engine Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2012 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $93.15 MSRP: $167.37
    You Save: $74.22 (45%)
  • Dorman Cast Iron Natural Exhaust Manifold for 2012 GMC Sierra 3500 HD - 674-736

    Dorman® Cast Iron Natural Exhaust Manifold for 2012 GMC Sierra 3500 HD

    PartNumber: 674-736
    Product Specifications
    • Finish: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 3
    • Gasket or Seal Included: Yes
    • Header Material: Cast Iron
    • Heat Shield Included: Yes
    • Inlet Port Shape: Square
    • Installation Hardware Included: Yes
    • Item Grade: Regular
    • Manifold Bolt Hole Quantity: 8
    • OE Part Number: 12624683, 97224586
    • Package Quantity: 1
    • Position: Passenger Side
    • UPC: 019495212911
    • Part Description: 2012 GMC Sierra 3500 HD Cast Iron Natural Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2012 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.6L
    $185.78
  • OEM 2012 GMC Sierra 3500 HD Exhaust Manifold Diagram - 12637647
    View Related Parts

    OEM (Genuine) 2012 GMC Sierra 3500 HD Exhaust Manifold

    PartNumber: 12637647
    OEM 2012 GMC Sierra 3500 HD Exhaust Manifold - 12637647
    Product Specifications
    • Notes: Silverado, Sierra; 6.6l; Left; 6.6 Liter Diesel
    • Location: Driver Side
    • Other Names: Exhaust Manifold
    • Item Dimensions: 19.3 x 5.3 x 4.9 inches
    • Item Weight: 9.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2012 GMC Sierra 3500 HD Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2012 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
    $289.63 MSRP: $459.86
    You Save: $170.23 (38%)
  • Dorman Cast Iron Natural Exhaust Manifold for 2012 GMC Sierra 3500 HD - 674-732

    Dorman® Cast Iron Natural Exhaust Manifold for 2012 GMC Sierra 3500 HD

    PartNumber: 674-732
    Product Specifications
    • Finish: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 3
    • Gasket or Seal Included: Yes
    • Header Material: Cast Iron
    • Heat Shield Included: Yes
    • Inlet Port Shape: Round
    • Installation Hardware Included: Yes
    • Item Grade: Regular
    • Manifold Bolt Hole Quantity: 6
    • OE Part Number: 12569416, 12569530, 12578341, 12602038, 12616286, 12648339, 12677665
    • Package Quantity: 1
    • Position: Passenger Side
    • UPC: 019495212904
    • Part Description: 2012 GMC Sierra 3500 HD Cast Iron Natural Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2012 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $137.52
  • OEM 2012 GMC Sierra 3500 HD Exhaust Manifold Diagram - 12686302
    View Related Parts

    OEM (Genuine) 2012 GMC Sierra 3500 HD Exhaust Manifold

    PartNumber: 12686302
    OEM 2012 GMC Sierra 3500 HD Exhaust Manifold - 12686302
    Product Specifications
    • Notes: 6.0 Liter; Silverado, Sierra; 6.0l; Right
    • Location: Passenger Side
    • Other Names: Exhaust Manifold
    • Item Dimensions: 25.0 x 9.7 x 8.1 inches
    • Item Weight: 12.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12647717, 12612084, 12677663
    • Part Description: 2012 GMC Sierra 3500 HD Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2012 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
    $498.32 MSRP: $791.22
    You Save: $292.90 (38%)
  • Dorman Cast Iron Natural Exhaust Manifold for 2012 GMC Sierra 3500 HD - 674-522

    Dorman® Cast Iron Natural Exhaust Manifold for 2012 GMC Sierra 3500 HD

    PartNumber: 674-522
    Product Specifications
    • Finish: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 3
    • Gasket or Seal Included: Yes
    • Header Material: Cast Iron
    • Heat Shield Included: Yes
    • Inlet Port Shape: Round
    • Installation Hardware Included: Yes
    • Item Grade: Regular
    • Manifold Bolt Hole Quantity: 6
    • OE Part Number: 12556078, 12562235, 12562330, 12564155, 12571678, 12602037, 12616285
    • Package Quantity: 1
    • Position: Driver Side
    • UPC: 019495064978
    • Part Description: 2012 GMC Sierra 3500 HD Cast Iron Natural Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2012 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.0L
    $95.43
  • OEM 2012 GMC Sierra 3500 HD Exhaust Manifold Diagram - 12624683
    View Related Parts

    OEM (Genuine) 2012 GMC Sierra 3500 HD Exhaust Manifold

    PartNumber: 12624683
    OEM 2012 GMC Sierra 3500 HD Exhaust Manifold - 12624683
    Product Specifications
    • Notes: Silverado, Sierra; 6.6l; Right; 6.6 Liter Diesel
    • Location: Passenger Side
    • Other Names: Exhaust Manifold
    • Item Dimensions: 22.8 x 5.8 x 5.9 inches
    • Item Weight: 9.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 97224586
    • Part Description: 2012 GMC Sierra 3500 HD Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2012 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
    $308.25 MSRP: $459.86
    You Save: $151.61 (33%)
  • Dorman Cast Iron Natural Exhaust Manifold for 2012 GMC Sierra 3500 HD - 674-731

    Dorman® Cast Iron Natural Exhaust Manifold for 2012 GMC Sierra 3500 HD

    PartNumber: 674-731
    Product Specifications
    • Finish: Natural
    • Flange Bolt Hole Quantity: 0
    • Flange Stud Hole Quantity: 3
    • Gasket or Seal Included: Yes
    • Header Material: Cast Iron
    • Heat Shield Included: No
    • Inlet Port Shape: Square
    • Installation Hardware Included: Yes
    • Item Grade: Regular
    • Manifold Bolt Hole Quantity: 8
    • OE Part Number: 12624684, 12637647, 97224587
    • Package Quantity: 1
    • Position: Driver Side
    • UPC: 019495212935
    • Part Description: 2012 GMC Sierra 3500 HD Cast Iron Natural Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2012 GMC Sierra 3500 HD | All Trims | 8 Cyl 6.6L
    $71.95