Name: 2018 GMC Sierra 3500 HD Gasket, Exhaust Manifold 12617944
Brand: GM
SKU: GM 12617944
Price: 16.87 USD
Availability: InStock

Help Center

My Vehicle Change Vehicle

2018 GMC Sierra 3500 HD

Change Vehicle

Vehicle Options

107 products about 2018 GMC Sierra 3500 HD Exhaust Manifolds, Pipes, Mufflers & Components found

Show Item:

Sort by:

Recommended

Filter

Sort

View by

View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Gasket, Exhaust Manifold
PartNumber: 12617944
Product Specifications
Notes: 6.0 Liter; Silverado, Sierra; 6.0l
Location: Driver Side; Passenger Side
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: 2018 GMC Sierra 3500 HD Gasket, Exhaust Manifold
More Info
Vehicle Fitment
2018 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
$16.87 MSRP: ~~$35.00~~
You Save: $18.13 (52%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Mount Insulator
PartNumber: 15092802
Product Specifications
Notes: 6.6 Liter Diesel, 3-Hole, Long; 6.0 Liter
Item Dimensions: 5.1 x 2.6 x 1.9 inches
Item Weight: 0.60 Pounds
Fitment Type: Direct Replacement
Replaces: 15740212
Part Description: 2018 GMC Sierra 3500 HD Mount Insulator
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
$22.72 MSRP: ~~$34.28~~
You Save: $11.56 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Mount Insulator
PartNumber: 15092802
Product Specifications
Notes: 6.6 Liter Diesel, 3-Hole, Long; 6.0 Liter
Item Dimensions: 5.1 x 2.6 x 1.9 inches
Item Weight: 0.60 Pounds
Fitment Type: Direct Replacement
Replaces: 15740212
Part Description: 2018 GMC Sierra 3500 HD Mount Insulator
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
$22.72 MSRP: ~~$34.28~~
You Save: $11.56 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Mount Insulator
PartNumber: 15092802
Product Specifications
Notes: 6.6 Liter Diesel, 3-Hole, Long; 6.0 Liter
Item Dimensions: 5.1 x 2.6 x 1.9 inches
Item Weight: 0.60 Pounds
Fitment Type: Direct Replacement
Replaces: 15740212
Part Description: 2018 GMC Sierra 3500 HD Mount Insulator
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
$22.72 MSRP: ~~$34.28~~
You Save: $11.56 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Mount Insulator
PartNumber: 15092802
Product Specifications
Notes: 6.6 Liter Diesel, 3-Hole, Long; 6.0 Liter
Item Dimensions: 5.1 x 2.6 x 1.9 inches
Item Weight: 0.60 Pounds
Fitment Type: Direct Replacement
Replaces: 15740212
Part Description: 2018 GMC Sierra 3500 HD Mount Insulator
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS
$22.72 MSRP: ~~$34.28~~
You Save: $11.56 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD 3Way Catalytic Convertor Assembly (W/Exhaust Pipe)
PartNumber: 84053221
Product Specifications
Other Names: Catalytic Converter
Item Dimensions: 63.4 x 33.9 x 15.8 inches
Item Weight: 49.20 Pounds
Replaced by: 19420277
Part Description: 2018 GMC Sierra 3500 HD 3Way Catalytic Convertor Assembly (W/Exhaust Pipe)
More Info
Vehicle Fitment
2018 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
$1842.67 MSRP: ~~$3032.88~~
You Save: $1190.21 (40%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD 3Way Catalytic Convertor Assembly (W/Exhaust Pipe)
PartNumber: 84053221
Product Specifications
Other Names: Catalytic Converter
Item Dimensions: 63.4 x 33.9 x 15.8 inches
Item Weight: 49.20 Pounds
Replaced by: 19420277
Part Description: 2018 GMC Sierra 3500 HD 3Way Catalytic Convertor Assembly (W/Exhaust Pipe)
More Info
Vehicle Fitment
2018 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
$1842.67 MSRP: ~~$3032.88~~
You Save: $1190.21 (40%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD 3Way Catalytic Convertor Assembly (W/Exhaust Pipe)
PartNumber: 84053221
Product Specifications
Other Names: Catalytic Converter
Item Dimensions: 63.4 x 33.9 x 15.8 inches
Item Weight: 49.20 Pounds
Replaced by: 19420277
Part Description: 2018 GMC Sierra 3500 HD 3Way Catalytic Convertor Assembly (W/Exhaust Pipe)
More Info
Vehicle Fitment
2018 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
$1842.67 MSRP: ~~$3032.88~~
You Save: $1190.21 (40%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Center Muffler Gasket
PartNumber: 15126137
Product Specifications
Notes: 6.6 Liter Diesel
Item Dimensions: 6.5 x 5.5 x 0.2 inches
Item Weight: 2.20 Pounds
Fitment Type: Direct Replacement
Replaces: 15767098
Replaced by: 37183442
Part Description: 2018 GMC Sierra 3500 HD Center Muffler Gasket
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$8.61 MSRP: ~~$12.97~~
You Save: $4.36 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Center Muffler Gasket
PartNumber: 15126137
Product Specifications
Notes: 6.6 Liter Diesel
Item Dimensions: 6.5 x 5.5 x 0.2 inches
Item Weight: 2.20 Pounds
Fitment Type: Direct Replacement
Replaces: 15767098
Replaced by: 37183442
Part Description: 2018 GMC Sierra 3500 HD Center Muffler Gasket
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$8.61 MSRP: ~~$12.97~~
You Save: $4.36 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 85165533
Product Specifications
Notes: 6.6 Liter Diesel, Double Cab, 8 Ft Box; Sierra, Silverado; Regular Cab
Other Names: Diesel Particulate Filter, Muffler & Pipe
Replaces: 84181080
Replaced by: 86534411
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$2247.83 MSRP: ~~$3378.41~~
You Save: $1130.58 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 85165533
Product Specifications
Notes: 6.6 Liter Diesel, Double Cab, 8 Ft Box; Sierra, Silverado; Regular Cab
Other Names: Diesel Particulate Filter, Muffler & Pipe
Replaces: 84181080
Replaced by: 86534411
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$2247.83 MSRP: ~~$3378.41~~
You Save: $1130.58 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 85165533
Product Specifications
Notes: 6.6 Liter Diesel, Double Cab, 8 Ft Box; Sierra, Silverado; Regular Cab
Other Names: Diesel Particulate Filter, Muffler & Pipe
Replaces: 84181080
Replaced by: 86534411
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$2247.83 MSRP: ~~$3378.41~~
You Save: $1130.58 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 85165533
Product Specifications
Notes: 6.6 Liter Diesel, Double Cab, 8 Ft Box; Sierra, Silverado; Regular Cab
Other Names: Diesel Particulate Filter, Muffler & Pipe
Replaces: 84181080
Replaced by: 86534411
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$2247.83 MSRP: ~~$3378.41~~
You Save: $1130.58 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 85165540
Product Specifications
Notes: 6.6 Liter Diesel, Regular Cab, 8 Ft Box
Other Names: Muffler & Pipe
Replaces: 84181083
Replaced by: 86534417
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | Base, SLE | 8 Cyl 6.6 L DIESEL
$2214.72 MSRP: ~~$3328.47~~
You Save: $1113.75 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 85165540
Product Specifications
Notes: 6.6 Liter Diesel, Regular Cab, 8 Ft Box
Other Names: Muffler & Pipe
Replaces: 84181083
Replaced by: 86534417
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | Base, SLE | 8 Cyl 6.6 L DIESEL
$2214.72 MSRP: ~~$3328.47~~
You Save: $1113.75 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 85165540
Product Specifications
Notes: 6.6 Liter Diesel, Regular Cab, 8 Ft Box
Other Names: Muffler & Pipe
Replaces: 84181083
Replaced by: 86534417
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | Base, SLE | 8 Cyl 6.6 L DIESEL
$2214.72 MSRP: ~~$3328.47~~
You Save: $1113.75 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 85165540
Product Specifications
Notes: 6.6 Liter Diesel, Regular Cab, 8 Ft Box
Other Names: Muffler & Pipe
Replaces: 84181083
Replaced by: 86534417
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 GMC Sierra 3500 HD | Base, SLE | 8 Cyl 6.6 L DIESEL
$2214.72 MSRP: ~~$3328.47~~
You Save: $1113.75 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Heat Shield
PartNumber: 20908786
Product Specifications
Notes: 6.6 Liter Diesel, Rear Floor, Crew Cab; 6.0 Liter, Rear Floor, Crew Cab
Other Names: Heat Shield
Item Dimensions: 43.8 x 13.8 x 6.9 inches
Item Weight: 2.20 Pounds
Fitment Type: Direct Replacement
Replaces: 10361041
Part Description: 2018 GMC Sierra 3500 HD Heat Shield
More Info
Vehicle Fitment
2018 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, 8 Cyl 6.6 L DIESEL
$43.49
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Heat Shield
PartNumber: 23498620
Product Specifications
Notes: 6.6 Liter Diesel, Front Floor; 6.0 Liter, Front Floor
Other Names: Heat Shield
Item Dimensions: 47.6 x 5.1 x 16.9 inches
Item Weight: 0.90 Pounds
Fitment Type: Direct Replacement
Replaces: 23120901, 15804782, 25988380, 15804781, 20883209, 15893979, 15782417
Part Description: 2018 GMC Sierra 3500 HD Heat Shield
More Info
Vehicle Fitment
2018 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, 8 Cyl 6.6 L DIESEL
$55.76 MSRP: ~~$84.12~~
You Save: $28.36 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811684
Product Specifications
Notes: 6.0 Liter, Double Cab, 6.6 Ft Box
Other Names: Muffler, Muffler & Pipe
Item Dimensions: 123.4 x 27.7 x 18.1 inches
Item Weight: 59.90 Pounds
Fitment Type: Direct Replacement
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 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
$949.96 MSRP: ~~$1433.12~~
You Save: $483.16 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811684
Product Specifications
Notes: 6.0 Liter, Double Cab, 6.6 Ft Box
Other Names: Muffler, Muffler & Pipe
Item Dimensions: 123.4 x 27.7 x 18.1 inches
Item Weight: 59.90 Pounds
Fitment Type: Direct Replacement
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 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
$949.96 MSRP: ~~$1433.12~~
You Save: $483.16 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811684
Product Specifications
Notes: 6.0 Liter, Double Cab, 6.6 Ft Box
Other Names: Muffler, Muffler & Pipe
Item Dimensions: 123.4 x 27.7 x 18.1 inches
Item Weight: 59.90 Pounds
Fitment Type: Direct Replacement
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 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
$949.96 MSRP: ~~$1433.12~~
You Save: $483.16 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811684
Product Specifications
Notes: 6.0 Liter, Double Cab, 6.6 Ft Box
Other Names: Muffler, Muffler & Pipe
Item Dimensions: 123.4 x 27.7 x 18.1 inches
Item Weight: 59.90 Pounds
Fitment Type: Direct Replacement
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 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
$949.96 MSRP: ~~$1433.12~~
You Save: $483.16 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811687
Product Specifications
Notes: 6.0 Liter, Crew Cab, 8 Ft Box
Other Names: Muffler, Muffler & Pipe
Item Dimensions: 144.1 x 27.7 x 17.9 inches
Item Weight: 69.30 Pounds
Fitment Type: Direct Replacement
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 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
$955.13 MSRP: ~~$1440.92~~
You Save: $485.79 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811687
Product Specifications
Notes: 6.0 Liter, Crew Cab, 8 Ft Box
Other Names: Muffler, Muffler & Pipe
Item Dimensions: 144.1 x 27.7 x 17.9 inches
Item Weight: 69.30 Pounds
Fitment Type: Direct Replacement
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 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
$955.13 MSRP: ~~$1440.92~~
You Save: $485.79 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811687
Product Specifications
Notes: 6.0 Liter, Crew Cab, 8 Ft Box
Other Names: Muffler, Muffler & Pipe
Item Dimensions: 144.1 x 27.7 x 17.9 inches
Item Weight: 69.30 Pounds
Fitment Type: Direct Replacement
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 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
$955.13 MSRP: ~~$1440.92~~
You Save: $485.79 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811687
Product Specifications
Notes: 6.0 Liter, Crew Cab, 8 Ft Box
Other Names: Muffler, Muffler & Pipe
Item Dimensions: 144.1 x 27.7 x 17.9 inches
Item Weight: 69.30 Pounds
Fitment Type: Direct Replacement
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 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
$955.13 MSRP: ~~$1440.92~~
You Save: $485.79 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811685
Product Specifications
Notes: 6.0 Liter, Crew Cab, 6.6 Ft Box
Other Names: Muffler & Pipe
Item Dimensions: 128.4 x 28.0 x 18.1 inches
Item Weight: 67.00 Pounds
Fitment Type: Direct Replacement
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 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
$1028.41 MSRP: ~~$1551.48~~
You Save: $523.07 (34%)
View Related Parts
OEM (Genuine) 2018 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811685
Product Specifications
Notes: 6.0 Liter, Crew Cab, 6.6 Ft Box
Other Names: Muffler & Pipe
Item Dimensions: 128.4 x 28.0 x 18.1 inches
Item Weight: 67.00 Pounds
Fitment Type: Direct Replacement
Part Description: 2018 GMC Sierra 3500 HD Muffler & Pipe
More Info
Vehicle Fitment
2018 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
$1028.41 MSRP: ~~$1551.48~~
You Save: $523.07 (34%)