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Exhaust Manifold
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Exhaust Heat Shield
Exhaust Manifold Bolt
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Exhaust Bracket
Exhaust Extension Pipe
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OEM (Genuine) GMC Sierra 2500 HD Gasket, Exhaust Manifold
PartNumber: 12617944
Product Specifications- Other Names: Exhaust Manifold Gasket, Manifold Gasket
- Item Dimensions: 19.0 x 3.0 x 0.2 inches
- Item Weight: 0.70 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12558573, 12600530
- Part Description: GMC Sierra 2500 HD Gasket, Exhaust Manifold
$16.87 MSRP:$35.00You Save: $18.13 (52%)
OEM (Genuine) GMC Sierra 2500 HD Bumper Nut
PartNumber: 11517996
Product Specifications- Item Dimensions: 2.3 x 2.3 x 0.6 inches
- Item Weight: 0.30 Pounds
- Fitment Type: Direct Replacement
- Replaces: 24504100, 10255857, 11515604, 15679745, 11516077, 15259227, 16792001
- Part Description: GMC Sierra 2500 HD Bumper Nut
$4.47 MSRP:$7.38You Save: $2.91 (40%)
OEM (Genuine) GMC Sierra 2500 HD Manifold Gasket
PartNumber: 12657093
Product Specifications- Other Names: Exhaust Manifold Gasket, Manifold Gasket
- Item Dimensions: 18.8 x 3.0 x 0.2 inches
- Item Weight: 0.40 Pounds
- Fitment Type: Direct Replacement
- Part Description: GMC Sierra 2500 HD Manifold Gasket
$11.93 MSRP:$18.93You Save: $7.00 (37%)
OEM (Genuine) GMC Sierra 2500 HD Bracket Bolt
PartNumber: 11588723
Product Specifications- Item Dimensions: 1.8 x 1.2 x 0.8 inches
- Item Weight: 0.30 Pounds
- Fitment Type: Direct Replacement
- Replaces: 94010881, 94012127
- Part Description: GMC Sierra 2500 HD Bracket Bolt
$5.80 MSRP:$9.35You Save: $3.55 (38%)
OEM (Genuine) GMC Sierra 2500 HD Engine Exhaust Manifold
PartNumber: 12616285
Product Specifications- 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: GMC Sierra 2500 HD Engine Exhaust Manifold
$93.15 MSRP:$167.37You Save: $74.22 (45%)
OEM (Genuine) GMC Sierra 2500 HD Converter & Pipe
PartNumber: 20854453
Product Specifications- Other Names: Catalytic Converter, Converter & Pipe
- Item Dimensions: 51.2 x 29.9 x 14.2 inches
- Item Weight: 35.50 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 19418926
- Part Description: GMC Sierra 2500 HD Converter & Pipe
$1724.84 MSRP:$2690.39You Save: $965.55 (36%)OEM (Genuine) GMC Sierra 2500 HD Converter & Pipe
PartNumber: 20854453Product Specifications- Other Names: Catalytic Converter, Converter & Pipe
- Item Dimensions: 51.2 x 29.9 x 14.2 inches
- Item Weight: 35.50 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 19418926
- Part Description: GMC Sierra 2500 HD Converter & Pipe
$1724.84 MSRP:$2690.39You Save: $965.55 (36%)OEM (Genuine) GMC Sierra 2500 HD Converter & Pipe
PartNumber: 20854453Product Specifications- Other Names: Catalytic Converter, Converter & Pipe
- Item Dimensions: 51.2 x 29.9 x 14.2 inches
- Item Weight: 35.50 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 19418926
- Part Description: GMC Sierra 2500 HD Converter & Pipe
$1724.84 MSRP:$2690.39You Save: $965.55 (36%)
OEM (Genuine) GMC Sierra 2500 HD Converter & Pipe
PartNumber: 10395214
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: GMC Sierra 2500 HD Converter & Pipe
$1230.69 MSRP:$1843.58You Save: $612.89 (34%)OEM (Genuine) GMC Sierra 2500 HD Converter & Pipe
PartNumber: 10395214Product 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: GMC Sierra 2500 HD Converter & Pipe
$1230.69 MSRP:$1843.58You Save: $612.89 (34%)OEM (Genuine) GMC Sierra 2500 HD Converter & Pipe
PartNumber: 10395214Product 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: GMC Sierra 2500 HD Converter & Pipe
$1230.69 MSRP:$1843.58You Save: $612.89 (34%)
Walker® Aluminized Steel Exhaust Extension Pipe for GMC Sierra 2500 HD
PartNumber: 54878Product Specifications- Inlet Connection Type: 2 Bolt Welded Flange
- Inlet Diameter Designation: Outside Diameter
- Inlet Quantity: 1
- Main Piping Diameter: 3.5"
- Mandrel Bent: N
- Material: Aluminized Steel
- Outlet Connection Type: Pipe Connection
- Outlet Diameter Designation: Outside Diameter
- Outlet Quantity: 1
- Overall Length: 40.25"
- Pipe Inlet Diameter: 3.5"
- Pipe Outlet Diameter: 3.5"
- Thickness: 0.069"
- Part Description: GMC Sierra 2500 HD Aluminized Steel Exhaust Extension Pipe
$98.93
OEM (Genuine) GMC Sierra 2500 HD Catalytic Converter
PartNumber: 20854454
Product Specifications- Other Names: Catalytic Converter
- Item Dimensions: 45.3 x 29.9 x 14.4 inches
- Item Weight: 37.40 Pounds
- Replaced by: 19418941
- Part Description: GMC Sierra 2500 HD Catalytic Converter
$2125.29 MSRP:$3192.92You Save: $1067.63 (34%)OEM (Genuine) GMC Sierra 2500 HD Catalytic Converter
PartNumber: 20854454Product Specifications- Other Names: Catalytic Converter
- Item Dimensions: 45.3 x 29.9 x 14.4 inches
- Item Weight: 37.40 Pounds
- Replaced by: 19418941
- Part Description: GMC Sierra 2500 HD Catalytic Converter
$2125.29 MSRP:$3192.92You Save: $1067.63 (34%)OEM (Genuine) GMC Sierra 2500 HD Catalytic Converter
PartNumber: 20854454Product Specifications- Other Names: Catalytic Converter
- Item Dimensions: 45.3 x 29.9 x 14.4 inches
- Item Weight: 37.40 Pounds
- Replaced by: 19418941
- Part Description: GMC Sierra 2500 HD Catalytic Converter
$2125.29 MSRP:$3192.92You Save: $1067.63 (34%)
Dorman® Cast Iron Natural Exhaust Manifold for GMC Sierra 2500 HD
PartNumber: 674-736Product 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: GMC Sierra 2500 HD Cast Iron Natural Exhaust Manifold
$185.78
Victor Reinz® Exhaust Manifold Gasket Set for GMC Sierra 2500 HD
PartNumber: 11-10308-01Product Specifications- Bolt Hole Quantity: 8
- Color: Color May Vary
- Complete: Y
- Configuration: Two Piece
- Contains Applications: Y
- Material: Metal
- Release Wave: 02/28/2020
- Thickness: 0.0450
- UPC: 023913654634
- Part Description: GMC Sierra 2500 HD Exhaust Manifold Gasket Set
$43.10
Walker® Aluminized Steel Exhaust Extension Pipe for GMC Sierra 2500 HD
PartNumber: 54717Product Specifications- Exhaust Pipe Inlet Connection Type: Pipe Connection
- Exhaust Pipe Material: Steel
- Exhaust Pipe Outlet Connection Type: Pipe Connection
- Exhaust Pipe Overall Length: 36.625
- Exhaust Pipe Wall Maximum Gauge: Undisclosed
- Finish: Aluminized
- Fitment: Direct OE Replacement
- Grade Type: Regular
- Inlet 1 Inside Diameter: 3.000
- Inlet 1 Type: Pipe Connection
- Inlet Quantity: 1
- Internet Product Code (IPC): 8647F7CD7FA
- Item Grade: Standard Replacement
- Item has MSDS (SDS): N
- Length: 36.625
- Material: Steel
- Max Year Covered: 2006
- MFG Brand Name: Walker Exhaust
- MFG Model # (Series): 54717
- MFG Name: Tenneco, Inc
- Min Year Covered: 2001
- Most Popular Make / Model: Chevrolet Silverado 2500 HD
- Most Popular Year: 2004
- Outlet 1 Outside Diameter: 3.000
- Outlet 1 Type: Pipe Connection
- Outlet Quantity: 1
- Product Grade: Economy
- Supplier Company Name: Tenneco, Inc
- Total Part VIO: 702806
- Universal Or Specific Fit: Specific
- UPC: 086387547178
- Part Description: GMC Sierra 2500 HD Aluminized Steel Exhaust Extension Pipe
$26.69
Dorman® Cast Iron Natural Exhaust Manifold for GMC Sierra 2500 HD
PartNumber: 674-732Product 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: GMC Sierra 2500 HD Cast Iron Natural Exhaust Manifold
$137.52
Victor Reinz® Fiber And Metal Exhaust Pipe Flange Gasket for GMC Sierra 2500 HD
PartNumber: 71-13959-00Product Specifications- Bolt Hole Quantity: 4
- Inside Diameter: 3.610"
- Location: At Converter
- Material: Fiber and Metal
- Thickness: 0.055"
- Type: Flat
- UPC: 023913675028
- Part Description: GMC Sierra 2500 HD Fiber And Metal Exhaust Pipe Flange Gasket
$13.93
Walker® Aluminized Steel Exhaust Extension Pipe for GMC Sierra 2500 HD
PartNumber: 53727Product Specifications- Class: W
- Connection Type: Pipe
- Inlet Connection Type: Pipe Connection
- Inlet Diameter Designation: Inside Diameter
- Inlet Quantity: 1
- Material: Aluminized Steel
- Outlet Connection Type: Pipe Connection
- Outlet Diameter Designation: Outside Diameter
- Outlet Quantity: 1
- Overall Length: 26.125"
- Pipe Inlet Diameter: 3"
- Pipe Outlet Diameter: 3"
- Part Description: GMC Sierra 2500 HD Aluminized Steel Exhaust Extension Pipe
$22.09
Walker® Quiet Flow Steel Oval Aluminized Exhaust Muffler for GMC Sierra 2500 HD
PartNumber: 21522Product Specifications- Body Height: 5.500
- Body Length: 20.000
- Body Material: Stainless Steel
- Body Width: 11.000
- Exhaust Component Mount Type: No Mounts
- Finish: Aluminized
- Grade Type: Regular
- Inlet 1 Inside Diameter: 3.000
- Inlet 1 Type: Pipe Connection
- Inlet Configuration: Offset
- Inlet Offset: 3.5
- Internet Product Code (IPC): 6E97125578E
- Item has MSDS (SDS): N
- Max Year Covered: 2007
- MFG Brand Name: Walker Exhaust
- MFG Model # (Series): 21522
- MFG Name: Tenneco, Inc
- Min Year Covered: 2001
- Most Popular Make / Model: Chevrolet Silverado 2500 HD
- Most Popular Year: 2005
- Muffler Body Height: 5.5
- Muffler Body Length: 20.0
- Muffler Body Material: Steel
- Muffler Body Width: 11.0
- Muffler Color / Finish: Aluminized
- Muffler Inlet: Offset
- Muffler Inlet Connection Type: Pipe Connection
- Muffler Inlet Count: 1
- Muffler Inlet Diameter (in): 3.0
- Muffler Inlet Diameter 2 (in): 0.0
- Muffler Inlet Diameter Designation: Inside Diameter
- Muffler Outlet: Offset
- Muffler Outlet Connection Type: Pipe Connection
- Muffler Outlet Count: 1
- Muffler Outlet Diameter (in): 3.0
- Muffler Outlet Diameter Designation: Inside Diameter
- Muffler Overall Length: 27.0
- Muffler Reversible: No
- Muffler Shape: Oval
- Outlet 1 Inside Diameter: 3.000
- Outlet Configuration: Offset
- Overall Length: 27.000
- Product Grade: Economy
- Reversible: No
- Shape: Oval
- Supplier Company Name: Tenneco, Inc
- Total Part VIO: 702129
- Universal Or Specific Fit: Specific
- UPC: 086387215220
- Part Description: GMC Sierra 2500 HD Quiet Flow Steel Oval Aluminized Exhaust Muffler
$112.38
Dorman® Cast Iron Natural Exhaust Manifold for GMC Sierra 2500 HD
PartNumber: 674-522Product 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: GMC Sierra 2500 HD Cast Iron Natural Exhaust Manifold
$95.43
OEM (Genuine) GMC Sierra 2500 HD Mount Insulator
PartNumber: 15092802
Product Specifications- Item Dimensions: 5.1 x 2.6 x 1.9 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 15740212
- Part Description: GMC Sierra 2500 HD Mount Insulator
$22.72 MSRP:$34.28You Save: $11.56 (34%)OEM (Genuine) GMC Sierra 2500 HD Mount Insulator
PartNumber: 15092802Product Specifications- Item Dimensions: 5.1 x 2.6 x 1.9 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 15740212
- Part Description: GMC Sierra 2500 HD Mount Insulator
$22.72 MSRP:$34.28You Save: $11.56 (34%)OEM (Genuine) GMC Sierra 2500 HD Mount Insulator
PartNumber: 15092802Product Specifications- Item Dimensions: 5.1 x 2.6 x 1.9 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 15740212
- Part Description: GMC Sierra 2500 HD Mount Insulator
$22.72 MSRP:$34.28You Save: $11.56 (34%)OEM (Genuine) GMC Sierra 2500 HD Mount Insulator
PartNumber: 15092802Product Specifications- Item Dimensions: 5.1 x 2.6 x 1.9 inches
- Item Weight: 0.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 15740212
- Part Description: GMC Sierra 2500 HD Mount Insulator
$22.72 MSRP:$34.28You Save: $11.56 (34%)
Victor Reinz® Exhaust Pipe Flange Gasket for GMC Sierra 2500 HD
PartNumber: 71-14476-00Product Specifications- Location: Pipe to Manifold
- Position: Passenger Side
- UPC: 023913679538
- Part Description: GMC Sierra 2500 HD Exhaust Pipe Flange Gasket
$15.50
Dorman® Stainless Steel Silver Metal V Band Exhaust Manifold Clamp for GMC Sierra 2500 HD
PartNumber: 904-254Product Specifications- Clamp Design: V-band Clamp
- Finish: Silver Metal
- Item Grade: Regular
- Material: Stainless Steel
- Maximum Diameter: 4.25"
- Nut Type: Threaded
- OE Part Number: 11611439
- Package Quantity: 1
- Selling Package Quantity: Piece
- UPC: 019495436676
- Part Description: GMC Sierra 2500 HD Stainless Steel Silver Metal V Band Exhaust Manifold Clamp
$51.72
Walker® High Temperature Graphite for GMC Sierra 2500 HD
PartNumber: 31591Product Specifications- Bolt Hole Center to Center Distance 1: 4.750
- Bolt Hole Center to Center Distance 1 (in): 3.22
- Bolt Hole Center to Center Distance 2: 3.250
- Bolt Hole Center to Center Distance 2 (in): 4.75
- Bolt Hole Diameter: 0.500
- Gasket / Seal Material: High Temp Graphite, Steel Core And Fire Ring
- Gasket Thickness: 0.051
- Gasket Type: 4 Bolt
- Internet Product Code (IPC): EE4D2F9DBAA
- Item Grade: Standard Replacement
- Item has MSDS (SDS): N
- Material: High Temperature Graphite With Steel Core And Metal Fire Ring
- Max Year Covered: 2008
- MFG Brand Name: Walker Exhaust
- MFG Model # (Series): 31591
- MFG Name: Tenneco, Inc
- Min Year Covered: 2001
- Most Popular Make / Model: Chevrolet Silverado 2500 HD
- Most Popular Year: 2005
- Package Contents: 1 Gasket
- Port 1 Length: 3.500
- Port 1 Length (in): 3.52
- Port 1 Width: 3.500; 3.52
- Product Grade: Economy
- Supplier Company Name: Tenneco, Inc
- Thickness: 0.051
- Total Part VIO: 842676
- UPC: 086387315913
- Part Description: GMC Sierra 2500 HD High Temperature Graphite
$14.44
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