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Replacement and OEM Parts for 2003 GMC Sierra 2500 Exhaust Manifolds, Pipes, Mufflers & Components

2003 GMC Sierra 2500 Exhaust Manifolds, Pipes, Mufflers & Components

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Engine & Drivetrain

45 products about 2003 GMC Sierra 2500 Exhaust Manifolds, Pipes, Mufflers & Components found

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  • OEM 2003 GMC Sierra 2500 Engine Exhaust Manifold Diagram - 12616285
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Engine Exhaust Manifold

    PartNumber: 12616285
    OEM 2003 GMC Sierra 2500 Engine Exhaust Manifold - 12616285
    Product Specifications
    • Notes: 6.0 Liter Gas
    • 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: 2003 GMC Sierra 2500 Engine Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    $78.60 MSRP: $162.96
    You Save: $84.36 (52%)
  • Dorman Cast Iron Natural Exhaust Manifold for 2003 GMC Sierra 2500 - 674-732

    Dorman® Cast Iron Natural Exhaust Manifold for 2003 GMC Sierra 2500

    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: 2003 GMC Sierra 2500 Cast Iron Natural Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L
    $120.88
  • OEM 2003 GMC Sierra 2500 Converter & Pipe Diagram - 10395214
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Converter & Pipe

    PartNumber: 10395214
    OEM 2003 GMC Sierra 2500 Converter & Pipe - 10395214
    Product Specifications
    • Notes: 6.0 Liter Gas
    • Location: Driver Side
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 51.8 x 20.2 x 15.2 inches
    • Item Weight: 20.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19420109
    • Part Description: 2003 GMC Sierra 2500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
    $1230.69 MSRP: $1843.58
    You Save: $612.89 (34%)
  • OEM 2003 GMC Sierra 2500 Converter & Pipe Diagram - 10395214
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Converter & Pipe

    PartNumber: 10395214
    OEM 2003 GMC Sierra 2500 Converter & Pipe - 10395214
    Product Specifications
    • Notes: 6.0 Liter Gas
    • Location: Driver Side
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 51.8 x 20.2 x 15.2 inches
    • Item Weight: 20.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19420109
    • Part Description: 2003 GMC Sierra 2500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
    $1230.69 MSRP: $1843.58
    You Save: $612.89 (34%)
  • OEM 2003 GMC Sierra 2500 Converter & Pipe Diagram - 10395214
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Converter & Pipe

    PartNumber: 10395214
    OEM 2003 GMC Sierra 2500 Converter & Pipe - 10395214
    Product Specifications
    • Notes: 6.0 Liter Gas
    • Location: Driver Side
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 51.8 x 20.2 x 15.2 inches
    • Item Weight: 20.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19420109
    • Part Description: 2003 GMC Sierra 2500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
    $1230.69 MSRP: $1843.58
    You Save: $612.89 (34%)
  • Dorman Cast Iron Natural Exhaust Manifold for 2003 GMC Sierra 2500 - 674-522

    Dorman® Cast Iron Natural Exhaust Manifold for 2003 GMC Sierra 2500

    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: 2003 GMC Sierra 2500 Cast Iron Natural Exhaust Manifold
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L
    $86.02
  • Dorman Metal Black Exhaust Manifold To Cylinder Head Repair Clamp for 2003 GMC Sierra 2500 - 917-108

    Dorman® Metal Black Exhaust Manifold To Cylinder Head Repair Clamp for 2003 GMC Sierra 2500

    PartNumber: 917-108
    Product Specifications
    • Attachment Method: Bolt On
    • Finish: Black
    • Length: 5.3"
    • Material: Metal
    • Maximum Diameter: 0.49"
    • Minimum Diameter: 0.46"
    • OE Part Number: 11518860
    • Overall Length: 5.3"
    • Reusable: No
    • Self Locking: No
    • UPC: 019495825227
    • Part Description: 2003 GMC Sierra 2500 Metal Black Exhaust Manifold To Cylinder Head Repair Clamp
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L
    $25.39
  • OEM 2003 GMC Sierra 2500 Converter & Pipe Diagram - 10395213
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Converter & Pipe

    PartNumber: 10395213
    OEM 2003 GMC Sierra 2500 Converter & Pipe - 10395213
    Product Specifications
    • Notes: 6.0 Liter Gas
    • Location: Passenger Side
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 40.2 x 11.3 x 7.1 inches
    • Item Weight: 17.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19420124
    • Part Description: 2003 GMC Sierra 2500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
    $946.54 MSRP: $1415.00
    You Save: $468.46 (34%)
  • OEM 2003 GMC Sierra 2500 Converter & Pipe Diagram - 10395213
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Converter & Pipe

    PartNumber: 10395213
    OEM 2003 GMC Sierra 2500 Converter & Pipe - 10395213
    Product Specifications
    • Notes: 6.0 Liter Gas
    • Location: Passenger Side
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 40.2 x 11.3 x 7.1 inches
    • Item Weight: 17.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19420124
    • Part Description: 2003 GMC Sierra 2500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
    $946.54 MSRP: $1415.00
    You Save: $468.46 (34%)
  • OEM 2003 GMC Sierra 2500 Converter & Pipe Diagram - 10395213
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Converter & Pipe

    PartNumber: 10395213
    OEM 2003 GMC Sierra 2500 Converter & Pipe - 10395213
    Product Specifications
    • Notes: 6.0 Liter Gas
    • Location: Passenger Side
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 40.2 x 11.3 x 7.1 inches
    • Item Weight: 17.00 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19420124
    • Part Description: 2003 GMC Sierra 2500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
    $946.54 MSRP: $1415.00
    You Save: $468.46 (34%)
  • OEM 2003 GMC Sierra 2500 Heat Shield Diagram - 12677664
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Heat Shield

    PartNumber: 12677664
    OEM 2003 GMC Sierra 2500 Heat Shield - 12677664
    Product Specifications
    • Notes: 6.0 Liter Gas
    • Location: Passenger Side
    • Other Names: Heat Shield
    • Fitment Type: Direct Replacement
    • Replaces: 12648338
    • Part Description: 2003 GMC Sierra 2500 Heat Shield
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
    $61.22 MSRP: $92.34
    You Save: $31.12 (34%)
  • Victor Reinz Exhaust Manifold Gasket Set for 2003 GMC Sierra 2500 - 11-10604-01

    Victor Reinz® Exhaust Manifold Gasket Set for 2003 GMC Sierra 2500

    PartNumber: 11-10604-01
    Product Specifications
    • Bolt Hole Quantity: 6
    • Color: Color May Vary
    • Complete: Y
    • Configuration: Multi Piece
    • Contains Applications: Y
    • Material: Steel
    • Release Wave: 12/15/2017
    • Thickness: 0.065
    • UPC: 023913657574
    • Part Description: 2003 GMC Sierra 2500 Exhaust Manifold Gasket Set
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | All Engines
  • Victor Reinz Steel Exhaust Pipe Flange Gasket for 2003 GMC Sierra 2500 - 71-13622-00

    Victor Reinz® Steel Exhaust Pipe Flange Gasket for 2003 GMC Sierra 2500

    PartNumber: 71-13622-00
    Product Specifications
    • Notes: Pipe To Manifold
    • Bolt Hole Quantity: 0
    • Color: Color May Vary
    • Complete: Y
    • Contains Applications: Y
    • Inside Diameter: 2.900
    • Material: Steel
    • Release Wave: 12/15/2017
    • Thickness: 0.180
    • UPC: 023913671655
    • Part Description: 2003 GMC Sierra 2500 Steel Exhaust Pipe Flange Gasket
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | All Trims | All Engines
  • OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W Diagram - 15798962
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W

    PartNumber: 15798962
    OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W - 15798962
    Product Specifications
    • Notes: Silverado, Sierra; 6.0L; 6 1/2 Box; Federal; Extended Cab; W/O Heavy Duty
    • Other Names: Muffler
    • Item Dimensions: 122.9 x 24.4 x 15.6 inches
    • Item Weight: 68.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15094497, 15147361, 15070023, 15113072, 15103198
    • Part Description: 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W Diagram - 15798962
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W

    PartNumber: 15798962
    OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W - 15798962
    Product Specifications
    • Notes: Silverado, Sierra; 6.0L; 6 1/2 Box; Federal; Extended Cab; W/O Heavy Duty
    • Other Names: Muffler
    • Item Dimensions: 122.9 x 24.4 x 15.6 inches
    • Item Weight: 68.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15094497, 15147361, 15070023, 15113072, 15103198
    • Part Description: 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W Diagram - 15798954
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W

    PartNumber: 15798954
    OEM 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W - 15798954
    Product Specifications
    • Notes: Silverado, Sierra; 6.0L; 6 1/2 Box; Federal; Extended Cab; W/Heavy Duty
    • Other Names: Muffler
    • Item Dimensions: 127.3 x 26.6 x 17.1 inches
    • Item Weight: 68.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15147362, 15113073
    • Part Description: 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W Diagram - 15798954
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W

    PartNumber: 15798954
    OEM 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W - 15798954
    Product Specifications
    • Notes: Silverado, Sierra; 6.0L; 6 1/2 Box; Federal; Extended Cab; W/Heavy Duty
    • Other Names: Muffler
    • Item Dimensions: 127.3 x 26.6 x 17.1 inches
    • Item Weight: 68.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15147362, 15113073
    • Part Description: 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P Diagram - 15199817
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P

    PartNumber: 15199817
    OEM 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P - 15199817
    Product Specifications
    • Notes: All Models; 6.0L; Federal
    • Other Names: Catalytic Converter
    • Item Dimensions: 53.0 x 33.7 x 13.2 inches
    • Item Weight: 21.30 Pounds
    • Replaced by: 19420127
    • Part Description: 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P Diagram - 15199817
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P

    PartNumber: 15199817
    OEM 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P - 15199817
    Product Specifications
    • Notes: All Models; 6.0L; Federal
    • Other Names: Catalytic Converter
    • Item Dimensions: 53.0 x 33.7 x 13.2 inches
    • Item Weight: 21.30 Pounds
    • Replaced by: 19420127
    • Part Description: 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Converter & Pipe Diagram - 15077751
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Converter & Pipe

    PartNumber: 15077751
    OEM 2003 GMC Sierra 2500 Converter & Pipe - 15077751
    Product Specifications
    • Notes: All Models; 6.0L; California; Left
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 63.6 x 27.8 x 15.8 inches
    • Item Weight: 30.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 GMC Sierra 2500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Converter & Pipe Diagram - 15077751
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Converter & Pipe

    PartNumber: 15077751
    OEM 2003 GMC Sierra 2500 Converter & Pipe - 15077751
    Product Specifications
    • Notes: All Models; 6.0L; California; Left
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 63.6 x 27.8 x 15.8 inches
    • Item Weight: 30.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 GMC Sierra 2500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Converter & Pipe Diagram - 15077751
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Converter & Pipe

    PartNumber: 15077751
    OEM 2003 GMC Sierra 2500 Converter & Pipe - 15077751
    Product Specifications
    • Notes: All Models; 6.0L; California; Left
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 63.6 x 27.8 x 15.8 inches
    • Item Weight: 30.00 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 GMC Sierra 2500 Converter & Pipe
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Manifold Diagram - 12605246
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Manifold

    PartNumber: 12605246
    OEM 2003 GMC Sierra 2500 Manifold - 12605246
    Product Specifications
    • Notes: 6.0 Liter Gas
    • Location: Passenger Side
    • Other Names: Exhaust Manifold, Manifold
    • Item Dimensions: 9.7 x 8.1 x 25.7 inches
    • Item Weight: 14.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12564157, 12562236
    • Part Description: 2003 GMC Sierra 2500 Manifold
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Muffler Diagram - 15798948
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Muffler

    PartNumber: 15798948
    OEM 2003 GMC Sierra 2500 Muffler - 15798948
    Product Specifications
    • Notes: Silverado, Sierra; 6.0L; 6 1/2 Box; California; Crew Cab;Silverado, Sierra; 6.0L; 6 1/2 Box; Federal; Crew Cab
    • Other Names: Muffler
    • Item Dimensions: 152.7 x 26.3 x 15.5 inches
    • Item Weight: 75.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15113063, 15103189, 15147353, 15077779, 15077763
    • Part Description: 2003 GMC Sierra 2500 Muffler
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Muffler Diagram - 15798948
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Muffler

    PartNumber: 15798948
    OEM 2003 GMC Sierra 2500 Muffler - 15798948
    Product Specifications
    • Notes: Silverado, Sierra; 6.0L; 6 1/2 Box; California; Crew Cab;Silverado, Sierra; 6.0L; 6 1/2 Box; Federal; Crew Cab
    • Other Names: Muffler
    • Item Dimensions: 152.7 x 26.3 x 15.5 inches
    • Item Weight: 75.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 15113063, 15103189, 15147353, 15077779, 15077763
    • Part Description: 2003 GMC Sierra 2500 Muffler
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W Diagram - 15798946
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W

    PartNumber: 15798946
    OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W - 15798946
    Product Specifications
    • Notes: Silverado, Sierra; 6.0L; 6 1/2 Box; California; Extended Cab; All
    • Other Names: Muffler
    • Item Dimensions: 131.9 x 31.3 x 17.3 inches
    • Item Weight: 76.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W Diagram - 15798946
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W

    PartNumber: 15798946
    OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W - 15798946
    Product Specifications
    • Notes: Silverado, Sierra; 6.0L; 6 1/2 Box; California; Extended Cab; All
    • Other Names: Muffler
    • Item Dimensions: 131.9 x 31.3 x 17.3 inches
    • Item Weight: 76.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W Diagram - 15798950
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W

    PartNumber: 15798950
    OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W - 15798950
    Product Specifications
    • Notes: Silverado, Sierra; 6.0L; 8 Box; W/O Extended Cab; W/O Rear Exit Exhaust; California; W/Heavy Duty;Silverado, Sierra; 6.0L; 8 Box; W/O Extended Cab; W/O Rear Exit Exhaust; Federal; W/Heavy Duty
    • Other Names: Muffler
    • Item Dimensions: 110.4 x 30.9 x 17.1 inches
    • Item Weight: 57.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W Diagram - 15798950
    View Related Parts

    OEM (Genuine) 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W

    PartNumber: 15798950
    OEM 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W - 15798950
    Product Specifications
    • Notes: Silverado, Sierra; 6.0L; 8 Box; W/O Extended Cab; W/O Rear Exit Exhaust; California; W/Heavy Duty;Silverado, Sierra; 6.0L; 8 Box; W/O Extended Cab; W/O Rear Exit Exhaust; Federal; W/Heavy Duty
    • Other Names: Muffler
    • Item Dimensions: 110.4 x 30.9 x 17.1 inches
    • Item Weight: 57.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
  • OEM 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P Diagram - 15077752
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    OEM (Genuine) 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P

    PartNumber: 15077752
    OEM 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P - 15077752
    Product Specifications
    • Notes: All Models; 6.0L; California; Right
    • Other Names: Catalytic Converter, Converter & Pipe, Front Pipe
    • Item Dimensions: 56.9 x 14.1 x 8.3 inches
    • Item Weight: 30.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
    More Info
    Vehicle Fitment
    • 2003 GMC Sierra 2500 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
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