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2011 GMC Sierra 3500 HD
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Exhaust Manifolds, Pipes & Mufflers
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OEM (Genuine) 2011 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: 2011 GMC Sierra 3500 HD 3Way Catalytic Convertor Assembly (W/Exhaust Pipe)
Vehicle Fitment- 2011 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
$2345.92 MSRP:$2882.96You Save: $537.04 (19%)
OEM (Genuine) 2011 GMC Sierra 3500 HD Front Pipe
PartNumber: 25811709
Product Specifications- Notes: Silverado, Sierra; 6.0l
- Other Names: Front Pipe
- Item Dimensions: 51.0 x 13.6 x 10.0 inches
- Item Weight: 14.00 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2011 GMC Sierra 3500 HD Front Pipe
Vehicle Fitment- 2011 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
$377.66 MSRP:$569.75You Save: $192.09 (34%)
OEM (Genuine) 2011 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811684
Product Specifications- Notes: 6.0 Liter, Ext Cab, 6.5 Ft Box; Silverado, Sierra; 6.0l; Crew Cab; 6.5 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: 2011 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2011 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
$903.01 MSRP:$1362.29You Save: $459.28 (34%)
OEM (Genuine) 2011 GMC Sierra 3500 HD Converter & Pipe
PartNumber: 22887212
Product Specifications- Other Names: Catalytic Converter, Converter & Pipe
- Item Dimensions: 57.7 x 14.3 x 10.2 inches
- Item Weight: 38.90 Pounds
- Fitment Type: Direct Replacement
- Replaced by: 19418925
- Part Description: 2011 GMC Sierra 3500 HD Converter & Pipe
Vehicle Fitment- 2011 GMC Sierra 3500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$1425.45 MSRP:$2147.06You Save: $721.61 (34%)
OEM (Genuine) 2011 GMC Sierra 3500 HD Exhaust Pipe
PartNumber: 12643610
Product Specifications- Notes: 6.6 Liter Diesel, Turbo & Exhaust Components
- Other Names: Exhaust Pipe
- Item Dimensions: 6.8 x 6.1 x 23.1 inches
- Item Weight: 19.70 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12636247, 12643214, 12638304
- Part Description: 2011 GMC Sierra 3500 HD Exhaust Pipe
Vehicle Fitment- 2011 GMC Sierra 3500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
$164.34 MSRP:$247.88You Save: $83.54 (34%)
OEM (Genuine) 2011 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811687
Product Specifications- Notes: 6.0 Liter, Crew Cab, 8 Ft Box; Silverado, Sierra; 6.0l; Crew Cab; 3500
- 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: 2011 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2011 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
$907.91 MSRP:$1369.69You Save: $461.78 (34%)OEM (Genuine) 2011 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811685Product Specifications- Notes: 6.0 Liter, Crew Cab, 6.5 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: 2011 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2011 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
$977.58 MSRP:$1474.79You Save: $497.21 (34%)OEM (Genuine) 2011 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811688Product Specifications- Notes: 6.0 Liter, Ext Cab, 8 Ft Box; Silverado, Sierra; 6.0l; Extended Cab; Lwb
- Other Names: Muffler, Muffler & Pipe
- Item Dimensions: 134.2 x 28.2 x 18.6 inches
- Item Weight: 61.60 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2011 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2011 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
$879.58 MSRP:$1326.95You Save: $447.37 (34%)OEM (Genuine) 2011 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 25811686Product Specifications- Notes: 6.0 Liter, Std Cab, 8 Ft Box; Silverado, Sierra; 6.0l; Regular Cab; W/O Catalytic Converter
- Other Names: Muffler, Muffler & Pipe
- Item Dimensions: 112.1 x 28.2 x 18.2 inches
- Item Weight: 60.50 Pounds
- Fitment Type: Direct Replacement
- Part Description: 2011 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2011 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
$832.35 MSRP:$1255.70You Save: $423.35 (34%)
OEM (Genuine) 2011 GMC Sierra 3500 HD Converter & Pipe
PartNumber: 19418967
Product Specifications- Notes: 6.0 Liter; Catalytic Converter; Silverado, Sierra; 6.0l; Regular Cab; Code Aadj;Catalytic Converter; Silverado, Sierra; 6.0l; Regular Cab; Code Aall
- Other Names: Catalytic Converter, Converter & Pipe
- Fitment Type: Direct Replacement
- Replaces: 20880347, 22751291
- Part Description: 2011 GMC Sierra 3500 HD Converter & Pipe
Vehicle Fitment- 2011 GMC Sierra 3500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS
$3063.35 MSRP:$4607.79You Save: $1544.44 (34%)
OEM (Genuine) 2011 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 22799975
Product Specifications- Notes: Catalytic Converter; Silverado, Sierra; 6.6l; W/Diesel Particulate; Filter/Muffler; Crew Cab; W/Dual Turbo; Lwb; 6.6 Liter Diesel, Crew Cab, 8 Ft Box
- Other Names: Catalytic Converter, Muffler & Pipe
- Item Dimensions: 150.6 x 28.3 x 18.5 inches
- Item Weight: 91.30 Pounds
- Fitment Type: Direct Replacement
- Replaces: 25812367
- Part Description: 2011 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2011 GMC Sierra 3500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
OEM (Genuine) 2011 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 22799977Product Specifications- Notes: Catalytic Converter; Silverado, Sierra; 6.6l; W/Diesel Particulate; Filter/Muffler; Extended Cab; W/Dual Turbo; Swb; 6.6 Liter Diesel, Ext Cab, 6.5 Ft Box
- Other Names: Catalytic Converter, Muffler & Pipe
- Item Dimensions: 125.5 x 33.2 x 18.7 inches
- Item Weight: 82.90 Pounds
- Fitment Type: Direct Replacement
- Replaces: 25812369
- Part Description: 2011 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2011 GMC Sierra 3500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
OEM (Genuine) 2011 GMC Sierra 3500 HD Filter Asm-Exhaust Particulate (W/ Flange & C
PartNumber: 22799974Product Specifications- Notes: Catalytic Converter; Silverado, Sierra; 6.6l; W/Diesel Particulate; Filter/Muffler; Crew Cab; W/Dual Turbo; Swb; 6.6 Liter Diesel, Crew Cab, 6.5 Ft Box
- Other Names: Catalytic Converter, Muffler & Pipe
- Item Dimensions: 32.5 x 18.1 x 137.9 inches
- Item Weight: 83.60 Pounds
- Fitment Type: Direct Replacement
- Replaces: 25812366
- Part Description: 2011 GMC Sierra 3500 HD Filter Asm-Exhaust Particulate (W/ Flange & C
Vehicle Fitment- 2011 GMC Sierra 3500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
OEM (Genuine) 2011 GMC Sierra 3500 HD Muffler & Pipe
PartNumber: 22799972Product Specifications- Notes: Catalytic Converter; Silverado, Sierra; 6.6l; W/Diesel Particulate; Filter/Muffler; Regular Cab; W/Dual Turbo; 6.6 Liter Diesel, Std Cab
- Other Names: Catalytic Converter, Muffler & Pipe
- Item Dimensions: 117.0 x 29.4 x 18.3 inches
- Item Weight: 81.90 Pounds
- Fitment Type: Direct Replacement
- Replaces: 25812364
- Part Description: 2011 GMC Sierra 3500 HD Muffler & Pipe
Vehicle Fitment- 2011 GMC Sierra 3500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
OEM (Genuine) 2011 GMC Sierra 3500 HD Filter Asm-Exhaust Particulate (W/ Flange & C
PartNumber: 22799978Product Specifications- Notes: Catalytic Converter; Silverado, Sierra; 6.6l; W/Diesel Particulate; Filter/Muffler; Extended Cab; W/Dual Turbo; Lwb; 6.6 Liter Diesel, Ext Cab, 8 Ft Box
- Other Names: Catalytic Converter, Muffler & Pipe
- Item Dimensions: 142.2 x 29.7 x 18.5 inches
- Item Weight: 83.70 Pounds
- Fitment Type: Direct Replacement
- Replaces: 25812370
- Part Description: 2011 GMC Sierra 3500 HD Filter Asm-Exhaust Particulate (W/ Flange & C
Vehicle Fitment- 2011 GMC Sierra 3500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
OEM (Genuine) 2011 GMC Sierra 3500 HD CONVERTER ASM, 3WAY CTLTC(W/EXH PIPE)
PartNumber: 19420277Product Specifications- Notes: Catalytic Converter; Silverado, Sierra; 6.0l; Crew/Extended Cab
- Other Names: Catalytic Converter, Converter & Pipe
- Fitment Type: Direct Replacement
- Replaces: 23268768, 25811714, 84053222, 84053221
- Part Description: 2011 GMC Sierra 3500 HD CONVERTER ASM, 3WAY CTLTC(W/EXH PIPE)
Vehicle Fitment- 2011 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
FAQ for Exhaust Pipe Repair
Q: How do you fix a muffler buzz?
A:
Raise and support the vehicle, mark the position of the heat shield and straps, cut and remove the heat shield straps, position the heat shield to the muffler and install new heat shield straps on the muffler shell in the positions marked, position the strap screw heads and cut off excess strap material.
By Bob
GM Specialist
19/11/2020Q: What causes the Pinging/popping/snapping noise from the exhaust system?
A:
The pinging/popping/snapping noise is due to the exhaust system cooling down and is normal for this exhaust system.
By Omar
GM Specialist
18/11/2020