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2003 GMC Sierra 2500 Exhaust Manifolds, Pipes, Mufflers & Components
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2003 GMC Sierra 2500
$139.49Product 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
Vehicle Fitment- 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L
$100.75Product 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
Vehicle Fitment- 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L
Dorman® Metal Black Exhaust Manifold To Cylinder Head Repair Clamp for 2003 GMC Sierra 2500
PartNumber: 917-108$28.71Product 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
Vehicle Fitment- 2003 GMC Sierra 2500 | All Trims | 8 Cyl 6.0L
$19.53Product 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
Vehicle Fitment- 2003 GMC Sierra 2500 | All Trims | All Engines
$126.27 MSRP:$219.79You Save: $93.52 (43%)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
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
$929.34 MSRP:$1389.07You Save: $459.73 (34%)Product Specifications- 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
- $929.34 MSRP:
$1389.07You Save: $459.73 (34%)Product Specifications- 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
- $929.34 MSRP:
$1389.07You Save: $459.73 (34%)Product Specifications- 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
$965.72 MSRP:$1443.93You Save: $478.21 (34%)Product Specifications- 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
- $965.72 MSRP:
$1443.93You Save: $478.21 (34%)Product Specifications- 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
- $965.72 MSRP:
$1443.93You Save: $478.21 (34%)Product Specifications- 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
$72.54 MSRP:$109.43You Save: $36.89 (34%)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
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
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
Vehicle Fitment- 2003 GMC Sierra 2500 | All Trims | All Engines
OEM (Genuine) 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
PartNumber: 15199817Product Specifications- 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
OEM (Genuine) 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
PartNumber: 15199817Product Specifications- 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
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
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
- 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
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
- 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
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
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
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 (Genuine) 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W
PartNumber: 15798950Product 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
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 (Genuine) 2003 GMC Sierra 2500 Exhaust Muffler Assembly (W/ Exhaust & T/Pipe & 3W
PartNumber: 15798950Product 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
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 (Genuine) 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
PartNumber: 15077752Product 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
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 (Genuine) 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
PartNumber: 15077752Product 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
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 (Genuine) 2003 GMC Sierra 2500 3Way Catalytic Convertor Assembly (W/ Exhaust Manifold P
PartNumber: 15077752Product 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
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 (Genuine) 2003 GMC Sierra 2500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE) "KIT"
PartNumber: 19420127Product Specifications- Notes: All Models; 6.0l; Federal
- Other Names: Catalytic Converter, Front Pipe
- Fitment Type: Direct Replacement
- Replaces: 15199817
- Part Description: 2003 GMC Sierra 2500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE) "KIT"
Vehicle Fitment- 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
OEM (Genuine) 2003 GMC Sierra 2500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE) "KIT"
PartNumber: 19420127Product Specifications- Notes: All Models; 6.0l; Federal
- Other Names: Catalytic Converter, Front Pipe
- Fitment Type: Direct Replacement
- Replaces: 15199817
- Part Description: 2003 GMC Sierra 2500 CONVERTER ASM, 3WAY CTLTC (W/EXH MANIF PIPE) "KIT"
Vehicle Fitment- 2003 GMC Sierra 2500 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
OEM (Genuine) 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W
PartNumber: 15798949Product Specifications- Notes: Silverado, Sierra; 6.0l; 8 Box; W/Extended Cab; W/O Rear Exit Exhaust; All
- Other Names: Muffler, Muffler & Pipe
- Item Dimensions: 137.7 x 30.6 x 17.3 inches
- Item Weight: 76.70 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W
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 (Genuine) 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W
PartNumber: 15798949Product Specifications- Notes: Silverado, Sierra; 6.0l; 8 Box; W/Extended Cab; W/O Rear Exit Exhaust; All
- Other Names: Muffler, Muffler & Pipe
- Item Dimensions: 137.7 x 30.6 x 17.3 inches
- Item Weight: 76.70 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W
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 (Genuine) 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W
PartNumber: 15798949Product Specifications- Notes: Silverado, Sierra; 6.0l; 8 Box; W/Extended Cab; W/O Rear Exit Exhaust; All
- Other Names: Muffler, Muffler & Pipe
- Item Dimensions: 137.7 x 30.6 x 17.3 inches
- Item Weight: 76.70 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W
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 (Genuine) 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W
PartNumber: 15798949Product Specifications- Notes: Silverado, Sierra; 6.0l; 8 Box; W/Extended Cab; W/O Rear Exit Exhaust; All
- Other Names: Muffler, Muffler & Pipe
- Item Dimensions: 137.7 x 30.6 x 17.3 inches
- Item Weight: 76.70 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2003 GMC Sierra 2500 Muffler Asm-Exhaust (W/ Exhaust & T/Pipe & 3W
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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