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2021 GMC Sierra 3500 HD
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Exhaust Manifolds, Pipes & Mufflers
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OEM (Genuine) 2021 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 84572772
Product Specifications- Other Names: Diesel Particulate Filter, Muffler & Pipe
- Item Dimensions: 163.2 x 45.5 x 37.1 inches
- Item Weight: 70.70 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 86534424
- Part Description: 2021 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$1103.89 MSRP:$1653.13You Save: $549.24 (34%)
OEM (Genuine) 2021 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 84021294
Product Specifications- Notes: Silverado, Sierra 3500 Hd; Gas; Double Cab; Short Box
- Other Names: Muffler, Muffler & Pipe
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$615.84 MSRP:$929.07You Save: $313.23 (34%)
OEM (Genuine) 2021 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 84021295
Product Specifications- Notes: 6.6 Liter Gas, Crew Cab, 6.9 Ft Box; Silverado, Sierra 3500 Hd; Gas; Crew Cab; Short Box
- Other Names: Muffler, Muffler & Pipe
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$535.97 MSRP:$808.58You Save: $272.61 (34%)
OEM (Genuine) 2021 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 84021293
Product Specifications- Notes: 6.6 Liter Gas, Regular Cab; Silverado, Sierra 3500 Hd; Gas; Regular Cab
- Other Names: Muffler, Muffler & Pipe
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$508.26 MSRP:$766.77You Save: $258.51 (34%)OEM (Genuine) 2021 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 84021296Product Specifications- Notes: 6.6 Liter Gas, Double Cab; Silverado, Sierra 3500 Hd; Gas; Double Cab; Long Box
- Other Names: Muffler, Muffler & Pipe
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$503.34 MSRP:$759.35You Save: $256.01 (34%)OEM (Genuine) 2021 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 84021297Product Specifications- Notes: 6.6 Liter Gas, Crew Cab, 8 Ft Box; Silverado, Sierra 3500 Hd; Gas; Crew Cab; Long Box
- Other Names: Muffler, Muffler & Pipe
- Fitment Type: Direct Replacement
- Part Description: 2021 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$498.50 MSRP:$752.05You Save: $253.55 (34%)
OEM (Genuine) 2021 GMC Sierra 3500 HD Tailpipe Extension
PartNumber: 84521837
Product Specifications- Notes: 6.6 Liter Gas, Dual Outlet
- Other Names: Tailpipe Extension
- Material: Stainless Steel
- Fitment Type: Direct Replacement
- Product Grade: Performance Parts
- Part Description: 2021 GMC Sierra 3500 HD Tailpipe Extension
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$285.91 MSRP:$345.00You Save: $59.09 (18%)
OEM (Genuine) 2021 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 84612879
Product Specifications- Notes: 6.6 Liter Diesel, Regular Cab; Silverado, Sierra 3500 Hd; Regular Cab
- Other Names: Diesel Particulate Filter, Muffler & Pipe
- Replaced by: 86534428
- Part Description: 2021 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$934.31 MSRP:$1397.35You Save: $463.04 (34%)
OEM (Genuine) 2021 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 84612885
Product Specifications- Other Names: Diesel Particulate Filter, Muffler & Pipe
- Fitment Type: Direct Replacement
- Replaces: 84341175
- Replaced by: 86534451
- Part Description: 2021 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$821.07 MSRP:$1226.55You Save: $405.48 (34%)OEM (Genuine) 2021 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 84612887Product Specifications- Notes: 6.6 Liter Diesel, Crew Cab, 8 Ft Box; Silverado, Sierra 3500 Hd; Crew Cab; Long Box
- Other Names: Diesel Particulate Filter, Muffler & Pipe
- Fitment Type: Direct Replacement
- Replaced by: 86534453
- Part Description: 2021 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
$842.76 MSRP:$1259.26You Save: $416.50 (34%)OEM (Genuine) 2021 GMC Sierra 3500 HD Tailpipe Extension
PartNumber: 84722772Product Specifications- Notes: 6.6 Liter Gas, Single Outlet, Chrome
- Other Names: Tailpipe Extension
- Item Dimensions: 13.7 x 6.8 x 6.2 inches
- Item Weight: 4.20 Pounds
- Material: Stainless Steel
- Fitment Type: Direct Replacement
- Replaces: 84486314
- Product Grade: Performance Parts
- Part Description: 2021 GMC Sierra 3500 HD Tailpipe Extension
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
$116.02 MSRP:$140.00You Save: $23.98 (18%)OEM (Genuine) 2021 GMC Sierra 3500 HD Tailpipe Extension
PartNumber: 84521824
Product Specifications- Notes: 6.6 Liter Gas, Single Outlet, Black
- Other Names: Tailpipe Extension
- Item Dimensions: 13.4 x 6.7 x 6.1 inches
- Item Weight: 3.70 Pounds
- Fitment Type: Direct Replacement
- Replaces: 84520928
- Product Grade: Performance Parts
- Part Description: 2021 GMC Sierra 3500 HD Tailpipe Extension
Vehicle Fitment- 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS