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2018 GMC Sierra 1500 Exhaust Manifold

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2018 GMC Sierra 1500
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Exhaust Manifolds, Pipes & Mufflers
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  • OEM 2018 GMC Sierra 1500 Manifold - 12629337

    OEM (Genuine) 2018 GMC Sierra 1500 Manifold

    PartNumber: 12629337
    $156.17 MSRP: $258.49
    You Save: $102.32 (40%)
    Product Specifications
    • Notes: Sierra, Silverado; 5.3l, 6.2l; Left; 5.3 & 6.2 Liter
    • Location: Driver Side
    • Other Names: Manifold
    • Item Dimensions: 8.0 x 20.7 x 12.2 inches
    • Item Weight: 11.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 1500 Manifold
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
  • OEM 2018 GMC Sierra 1500 Exhaust Manifold - 12631812

    OEM (Genuine) 2018 GMC Sierra 1500 Exhaust Manifold

    PartNumber: 12631812
    $143.18 MSRP: $211.25
    You Save: $68.07 (33%)
    Product Specifications
    • Notes: 4.3 Liter; Sierra, Silverado; 4.3l; Left
    • Location: Driver Side
    • Item Dimensions: 18.2 x 10.2 x 9.9 inches
    • Item Weight: 9.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 1500 Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 1500 | Base, Denali, SLE, SLT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
  • OEM 2018 GMC Sierra 1500 Exhaust Manifold - 12631813

    OEM (Genuine) 2018 GMC Sierra 1500 Exhaust Manifold

    PartNumber: 12631813
    $130.79 MSRP: $202.74
    You Save: $71.95 (36%)
    Product Specifications
    • Notes: 4.3 Liter; Sierra, Silverado; 4.3l; Right
    • Location: Passenger Side
    • Item Dimensions: 18.4 x 10.7 x 9.5 inches
    • Item Weight: 10.90 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 1500 Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 1500 | Base, Denali, SLE, SLT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
  • Dorman Cast Iron Natural Exhaust Manifold for 2018 GMC Sierra 1500 - 674-495
    Product Specifications
    • Finish: Natural
    • Flange Bolt Hole Quantity: 8
    • Flange Stud Hole Quantity: 0
    • Gasket or Seal Included: Yes
    • Grade Type: Regular
    • Header Material: Cast Iron
    • Heat Shield Included: No
    • Inlet Port Shape: Oval
    • Installation Hardware Included: Yes
    • Manifold Bolt Hole Quantity: 5
    • O2 Sensor: without O2 Sensor Port
    • OE Part Number: 12629337
    • Position: Driver Side
    • Tube Wall Thickness: 0.43"
    • UPC: 889245247797
    • Part Description: 2018 GMC Sierra 1500 Cast Iron Natural Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 1500 | All Trims | 8 Cyl 5.3L
    • 2018 GMC Sierra 1500 | All Trims | 8 Cyl 6.2L
  • OEM 2018 GMC Sierra 1500 Exhaust Manifold - 12629338

    OEM (Genuine) 2018 GMC Sierra 1500 Exhaust Manifold

    PartNumber: 12629338
    $135.02 MSRP: $235.01
    You Save: $99.99 (43%)
    Product Specifications
    • Notes: Sierra, Silverado; 5.3l, 6.2l; Right; 5.3 & 6.2 Liter
    • Location: Passenger Side
    • Other Names: Manifold
    • Item Dimensions: 23.7 x 9.9 x 8.8 inches
    • Item Weight: 11.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2018 GMC Sierra 1500 Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2018 GMC Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS