38 products about 2021 GMC Sierra 3500 HD Emission Control foundVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Gas; Silverado, Sierra 3500 Hd Other Names: Purge Control Valve, Purge Solenoid, Purge Valve Item Dimensions: 5.0 x 5.0 x 4.3 inches Item Weight: 0.60 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD Purge Control Valve More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $35.88 MSRP: $67.70
You Save: $31.82 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Gas; Silverado, Sierra 3500 Hd Other Names: Purge Control Valve, Purge Solenoid, Purge Valve Item Dimensions: 5.0 x 5.0 x 4.3 inches Item Weight: 0.60 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD Purge Control Valve More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $35.88 MSRP: $67.70
You Save: $31.82 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Gas; Silverado, Sierra 3500 Hd Other Names: Purge Control Valve, Purge Solenoid, Purge Valve Item Dimensions: 5.0 x 5.0 x 4.3 inches Item Weight: 0.60 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD Purge Control Valve More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $35.88 MSRP: $67.70
You Save: $31.82 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Item Dimensions: 2.1 x 2.0 x 2.0 inches Item Weight: 0.30 Pounds Fitment Type: Direct Replacement Replaces: 12670600 Replaced by: 12707766 Part Description: 2021 GMC Sierra 3500 HD Sensor Asm-Intake Air Pressure & Temperature More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $26.99 MSRP: $53.59
You Save: $26.60 (50%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel, Emission Reduction System Other Names: Filler Cap, Filler Pipe Cap Item Dimensions: 6.3 x 2.8 x 2.0 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD Filler Pipe Cap More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $14.10 MSRP: $26.58
You Save: $12.48 (47%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Item Dimensions: 6.2 x 4.0 x 4.1 inches Item Weight: 0.60 Pounds Fitment Type: Direct Replacement Replaces: 13575704 Part Description: 2021 GMC Sierra 3500 HD Vent Control Solenoid More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $18.34 MSRP: $34.61
You Save: $16.27 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Item Dimensions: 6.2 x 4.0 x 4.1 inches Item Weight: 0.60 Pounds Fitment Type: Direct Replacement Replaces: 13575704 Part Description: 2021 GMC Sierra 3500 HD Vent Control Solenoid More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $18.34 MSRP: $34.61
You Save: $16.27 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Silverado, Sierra 3500 Hd; Position 3;Silverado, Sierra 3500 Hd; Position 4;Silverado, Sierra 3500 Hd; Position 5; 6.6 Liter Diesel, Sensors, AT Convtr & Pipe; 6.6 Liter Diesel, Sensors, AT Muffler & Pipe, Posn 1, 2 Other Names: Exhaust Temperature Sensor, Temperature Sensor Item Dimensions: 25.4 x 1.1 x 1.0 inches Item Weight: 0.50 Pounds Fitment Type: Direct Replacement Replaces: 12672685 Part Description: 2021 GMC Sierra 3500 HD Exhaust Temperature Sensor More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $38.16 MSRP: $72.02
You Save: $33.86 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Tank, Tank Strap Replaced by: 87821864 Part Description: 2021 GMC Sierra 3500 HD Tank Strap More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $524.79 MSRP: $868.57
You Save: $343.78 (40%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel Other Names: Cooler, EGR Cooler Item Dimensions: 20.0 x 10.3 x 10.7 inches Item Weight: 20.10 Pounds Fitment Type: Direct Replacement Replaces: 12634051 Replaced by: 12720269 Part Description: 2021 GMC Sierra 3500 HD Cooler More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $334.38 MSRP: $694.32
You Save: $359.94 (52%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel Other Names: By-Pass Valve, EGR Valve Item Dimensions: 7.1 x 13.7 x 11.6 inches Item Weight: 6.50 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD EGR Valve More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $191.19 MSRP: $360.76
You Save: $169.57 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel Other Names: By-Pass Valve, EGR Valve Item Dimensions: 7.1 x 13.7 x 11.6 inches Item Weight: 6.50 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD EGR Valve More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $191.19 MSRP: $360.76
You Save: $169.57 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel, AT Manifold Item Dimensions: 25.2 x 10.1 x 1.0 inches Item Weight: 0.30 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD EGR Temperature Sensor More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $50.28 MSRP: $94.88
You Save: $44.60 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel, AT Manifold Item Dimensions: 25.2 x 10.1 x 1.0 inches Item Weight: 0.30 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD EGR Temperature Sensor More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $50.28 MSRP: $94.88
You Save: $44.60 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Gas; Silverado, Sierra 3500 Hd Other Names: Vapor Canister Item Dimensions: 15.3 x 11.6 x 6.6 inches Item Weight: 4.40 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD Vapor Canister More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $157.45 MSRP: $297.10
You Save: $139.65 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Gas; Silverado, Sierra 3500 Hd Other Names: Vapor Canister Item Dimensions: 15.3 x 11.6 x 6.6 inches Item Weight: 4.40 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD Vapor Canister More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $157.45 MSRP: $297.10
You Save: $139.65 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel Other Names: EGR Valve Gasket, Valve Gasket Item Dimensions: 4.5 x 3.9 x 0.2 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Replaces: 12670937 Part Description: 2021 GMC Sierra 3500 HD EGR Valve Gasket More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $19.54 MSRP: $36.84
You Save: $17.30 (47%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel, AT Cross Over Pipe Item Dimensions: 6.9 x 4.8 x 4.4 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD EGR Temperature Sensor More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $30.60 MSRP: $57.76
You Save: $27.16 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel, AT Cross Over Pipe Item Dimensions: 6.9 x 4.8 x 4.4 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD EGR Temperature Sensor More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $30.60 MSRP: $57.76
You Save: $27.16 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Gas, 8 Ft Box; Silverado, Sierra 3500 Hd; Crew Cab Chassis;Silverado, Sierra 3500 Hd; Crew Cab; Long Box;Silverado, Sierra 3500 Hd; Double Cab;Silverado, Sierra 3500 Hd; Regular Cab Other Names: Solenoid Valve, Vent Control Solenoid Item Dimensions: 27.2 x 10.9 x 4.8 inches Item Weight: 0.90 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD Vent Control Solenoid More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $53.37 MSRP: $100.72
You Save: $47.35 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Gas, 8 Ft Box; Silverado, Sierra 3500 Hd; Crew Cab Chassis;Silverado, Sierra 3500 Hd; Crew Cab; Long Box;Silverado, Sierra 3500 Hd; Double Cab;Silverado, Sierra 3500 Hd; Regular Cab Other Names: Solenoid Valve, Vent Control Solenoid Item Dimensions: 27.2 x 10.9 x 4.8 inches Item Weight: 0.90 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD Vent Control Solenoid More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $53.37 MSRP: $100.72
You Save: $47.35 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel Other Names: EGR Pipe Item Dimensions: 10.6 x 4.2 x 4.0 inches Item Weight: 4.40 Pounds Fitment Type: Direct Replacement Replaced by: 12688016 Part Description: 2021 GMC Sierra 3500 HD EGR Pipe More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $84.47 MSRP: $159.40
You Save: $74.93 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel, Lower Other Names: EGR Pipe Gasket, EGR Valve Gasket Item Dimensions: 4.4 x 3.3 x 0.2 inches Item Weight: 0.30 Pounds Fitment Type: Direct Replacement Replaces: 12677469 Part Description: 2021 GMC Sierra 3500 HD EGR Pipe Gasket More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $20.21 MSRP: $38.16
You Save: $17.95 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel, Lower Other Names: EGR Pipe Gasket, EGR Valve Gasket Item Dimensions: 4.4 x 3.3 x 0.2 inches Item Weight: 0.30 Pounds Fitment Type: Direct Replacement Replaces: 12677469 Part Description: 2021 GMC Sierra 3500 HD EGR Pipe Gasket More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $20.21 MSRP: $38.16
You Save: $17.95 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Inlet Pipe Item Dimensions: 6.4 x 3.7 x 13.7 inches Item Weight: 1.30 Pounds Fitment Type: Direct Replacement Replaced by: 12737236 Part Description: 2021 GMC Sierra 3500 HD Inlet Pipe More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $73.16 MSRP: $138.06
You Save: $64.90 (48%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Gas Other Names: PCV Tube Item Dimensions: 7.7 x 6.8 x 1.6 inches Item Weight: 0.50 Pounds Fitment Type: Direct Replacement Replaces: 12669838 Part Description: 2021 GMC Sierra 3500 HD PCV Tube More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS $13.16 MSRP: $20.88
You Save: $7.72 (37%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel Item Dimensions: 3.5 x 2.5 x 0.2 inches Item Weight: 0.30 Pounds Fitment Type: Direct Replacement Replaced by: 12737098 Part Description: 2021 GMC Sierra 3500 HD Inlet Pipe Gasket More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $4.37 MSRP: $8.22
You Save: $3.85 (47%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel Item Dimensions: 3.5 x 2.5 x 0.2 inches Item Weight: 0.30 Pounds Fitment Type: Direct Replacement Replaced by: 12737098 Part Description: 2021 GMC Sierra 3500 HD Inlet Pipe Gasket More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $4.37 MSRP: $8.22
You Save: $3.85 (47%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Outlet Hose Item Dimensions: 8.0 x 2.6 x 2.0 inches Item Weight: 0.80 Pounds Fitment Type: Direct Replacement Replaced by: 12719125 Part Description: 2021 GMC Sierra 3500 HD Outlet Hose More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $13.89 MSRP: $26.18
You Save: $12.29 (47%)
Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel Other Names: Inlet Hose Item Dimensions: 9.5 x 3.6 x 2.2 inches Item Weight: 0.70 Pounds Fitment Type: Direct Replacement Part Description: 2021 GMC Sierra 3500 HD Inlet Hose More Info Vehicle Fitment 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL $11.60 MSRP: $21.86
You Save: $10.26 (47%)
Check Fit Add to Cart