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Replacement and OEM Parts for 2021 GMC Sierra 2500 HD Emission Control

2021 GMC Sierra 2500 HD Emission Control

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36 products about 2021 GMC Sierra 2500 HD Emission Control found

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  • OEM 2021 GMC Sierra 2500 HD Purge Control Valve Diagram - 12630282
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Purge Control Valve

    PartNumber: 12630282
    OEM 2021 GMC Sierra 2500 HD Purge Control Valve - 12630282
    Product Specifications
    • Notes: 6.6 Liter Gas; Silverado, Sierra 2500 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 2500 HD Purge Control Valve
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 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%)
  • OEM 2021 GMC Sierra 2500 HD Purge Control Valve Diagram - 12630282
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Purge Control Valve

    PartNumber: 12630282
    OEM 2021 GMC Sierra 2500 HD Purge Control Valve - 12630282
    Product Specifications
    • Notes: 6.6 Liter Gas; Silverado, Sierra 2500 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 2500 HD Purge Control Valve
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 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%)
  • OEM 2021 GMC Sierra 2500 HD Purge Control Valve Diagram - 12630282
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Purge Control Valve

    PartNumber: 12630282
    OEM 2021 GMC Sierra 2500 HD Purge Control Valve - 12630282
    Product Specifications
    • Notes: 6.6 Liter Gas; Silverado, Sierra 2500 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 2500 HD Purge Control Valve
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 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%)
  • OEM 2021 GMC Sierra 2500 HD Sensor Asm-Intake Air Pressure & Temperature Diagram - 12681993
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Sensor Asm-Intake Air Pressure & Temperature

    PartNumber: 12681993
    OEM 2021 GMC Sierra 2500 HD Sensor Asm-Intake Air Pressure & Temperature - 12681993
    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 2500 HD Sensor Asm-Intake Air Pressure & Temperature
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $26.99 MSRP: $53.59
    You Save: $26.60 (50%)
  • OEM 2021 GMC Sierra 2500 HD Filler Pipe Cap Diagram - 23138955
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Filler Pipe Cap

    PartNumber: 23138955
    OEM 2021 GMC Sierra 2500 HD Filler Pipe Cap - 23138955
    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 2500 HD Filler Pipe Cap
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $14.10 MSRP: $26.58
    You Save: $12.48 (47%)
  • OEM 2021 GMC Sierra 2500 HD Exhaust Temperature Sensor Diagram - 12683525
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Exhaust Temperature Sensor

    PartNumber: 12683525
    OEM 2021 GMC Sierra 2500 HD Exhaust Temperature Sensor - 12683525
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd; Position 3;Silverado, Sierra 2500 Hd; Position 4;Silverado, Sierra 2500 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 2500 HD Exhaust Temperature Sensor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $38.16 MSRP: $72.02
    You Save: $33.86 (48%)
  • OEM 2021 GMC Sierra 2500 HD Tank Strap Diagram - 85108193
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Tank Strap

    PartNumber: 85108193
    OEM 2021 GMC Sierra 2500 HD Tank Strap - 85108193
    Product Specifications
    • Other Names: Tank, Tank Strap
    • Replaced by: 87821864
    • Part Description: 2021 GMC Sierra 2500 HD Tank Strap
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $524.79 MSRP: $868.57
    You Save: $343.78 (40%)
  • OEM 2021 GMC Sierra 2500 HD Cooler Diagram - 12688224
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Cooler

    PartNumber: 12688224
    OEM 2021 GMC Sierra 2500 HD Cooler - 12688224
    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 2500 HD Cooler
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $334.38 MSRP: $694.32
    You Save: $359.94 (52%)
  • OEM 2021 GMC Sierra 2500 HD EGR Valve Diagram - 12641304
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    OEM (Genuine) 2021 GMC Sierra 2500 HD EGR Valve

    PartNumber: 12641304
    OEM 2021 GMC Sierra 2500 HD EGR Valve - 12641304
    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 2500 HD EGR Valve
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $191.19 MSRP: $360.76
    You Save: $169.57 (48%)
  • OEM 2021 GMC Sierra 2500 HD EGR Valve Diagram - 12641304
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    OEM (Genuine) 2021 GMC Sierra 2500 HD EGR Valve

    PartNumber: 12641304
    OEM 2021 GMC Sierra 2500 HD EGR Valve - 12641304
    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 2500 HD EGR Valve
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $191.19 MSRP: $360.76
    You Save: $169.57 (48%)
  • OEM 2021 GMC Sierra 2500 HD EGR Temperature Sensor Diagram - 12675840
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD EGR Temperature Sensor

    PartNumber: 12675840
    OEM 2021 GMC Sierra 2500 HD EGR Temperature Sensor - 12675840
    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 2500 HD EGR Temperature Sensor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $50.28 MSRP: $94.88
    You Save: $44.60 (48%)
  • OEM 2021 GMC Sierra 2500 HD EGR Temperature Sensor Diagram - 12675840
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD EGR Temperature Sensor

    PartNumber: 12675840
    OEM 2021 GMC Sierra 2500 HD EGR Temperature Sensor - 12675840
    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 2500 HD EGR Temperature Sensor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $50.28 MSRP: $94.88
    You Save: $44.60 (48%)
  • OEM 2021 GMC Sierra 2500 HD Vapor Canister Diagram - 84325521
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Vapor Canister

    PartNumber: 84325521
    OEM 2021 GMC Sierra 2500 HD Vapor Canister - 84325521
    Product Specifications
    • Notes: 6.6 Liter Gas; Silverado, Sierra 2500 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 2500 HD Vapor Canister
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 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%)
  • OEM 2021 GMC Sierra 2500 HD Vapor Canister Diagram - 84325521
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Vapor Canister

    PartNumber: 84325521
    OEM 2021 GMC Sierra 2500 HD Vapor Canister - 84325521
    Product Specifications
    • Notes: 6.6 Liter Gas; Silverado, Sierra 2500 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 2500 HD Vapor Canister
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 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%)
  • OEM 2021 GMC Sierra 2500 HD EGR Valve Gasket Diagram - 12677819
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    OEM (Genuine) 2021 GMC Sierra 2500 HD EGR Valve Gasket

    PartNumber: 12677819
    OEM 2021 GMC Sierra 2500 HD EGR Valve Gasket - 12677819
    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 2500 HD EGR Valve Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $19.54 MSRP: $36.84
    You Save: $17.30 (47%)
  • OEM 2021 GMC Sierra 2500 HD EGR Temperature Sensor Diagram - 12677346
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD EGR Temperature Sensor

    PartNumber: 12677346
    OEM 2021 GMC Sierra 2500 HD EGR Temperature Sensor - 12677346
    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 2500 HD EGR Temperature Sensor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $30.60 MSRP: $57.76
    You Save: $27.16 (48%)
  • OEM 2021 GMC Sierra 2500 HD EGR Temperature Sensor Diagram - 12677346
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD EGR Temperature Sensor

    PartNumber: 12677346
    OEM 2021 GMC Sierra 2500 HD EGR Temperature Sensor - 12677346
    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 2500 HD EGR Temperature Sensor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $30.60 MSRP: $57.76
    You Save: $27.16 (48%)
  • OEM 2021 GMC Sierra 2500 HD Vent Control Solenoid Diagram - 84613097
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Vent Control Solenoid

    PartNumber: 84613097
    OEM 2021 GMC Sierra 2500 HD Vent Control Solenoid - 84613097
    Product Specifications
    • Notes: 6.6 Liter Gas, 6.9 Ft Box, Double Cab;6.6 Liter Gas, 8 Ft Box; Silverado, Sierra 2500 Hd; Crew Cab Chassis;Silverado, Sierra 2500 Hd; Crew Cab; Long Box;Silverado, Sierra 2500 Hd; Double Cab;Silverado, Sierra 2500 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 2500 HD Vent Control Solenoid
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 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%)
  • OEM 2021 GMC Sierra 2500 HD Vent Control Solenoid Diagram - 84613097
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Vent Control Solenoid

    PartNumber: 84613097
    OEM 2021 GMC Sierra 2500 HD Vent Control Solenoid - 84613097
    Product Specifications
    • Notes: 6.6 Liter Gas, 6.9 Ft Box, Double Cab;6.6 Liter Gas, 8 Ft Box; Silverado, Sierra 2500 Hd; Crew Cab Chassis;Silverado, Sierra 2500 Hd; Crew Cab; Long Box;Silverado, Sierra 2500 Hd; Double Cab;Silverado, Sierra 2500 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 2500 HD Vent Control Solenoid
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 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%)
  • OEM 2021 GMC Sierra 2500 HD EGR Pipe Diagram - 12680217
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD EGR Pipe

    PartNumber: 12680217
    OEM 2021 GMC Sierra 2500 HD EGR Pipe - 12680217
    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 2500 HD EGR Pipe
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $84.47 MSRP: $159.40
    You Save: $74.93 (48%)
  • OEM 2021 GMC Sierra 2500 HD EGR Pipe Gasket Diagram - 12688014
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD EGR Pipe Gasket

    PartNumber: 12688014
    OEM 2021 GMC Sierra 2500 HD EGR Pipe Gasket - 12688014
    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 2500 HD EGR Pipe Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $20.21 MSRP: $38.16
    You Save: $17.95 (48%)
  • OEM 2021 GMC Sierra 2500 HD EGR Pipe Gasket Diagram - 12688014
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD EGR Pipe Gasket

    PartNumber: 12688014
    OEM 2021 GMC Sierra 2500 HD EGR Pipe Gasket - 12688014
    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 2500 HD EGR Pipe Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $20.21 MSRP: $38.16
    You Save: $17.95 (48%)
  • OEM 2021 GMC Sierra 2500 HD Inlet Pipe Diagram - 12683526
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Inlet Pipe

    PartNumber: 12683526
    OEM 2021 GMC Sierra 2500 HD Inlet Pipe - 12683526
    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 2500 HD Inlet Pipe
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $73.16 MSRP: $138.06
    You Save: $64.90 (48%)
  • OEM 2021 GMC Sierra 2500 HD PCV Tube Diagram - 12700664
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD PCV Tube

    PartNumber: 12700664
    OEM 2021 GMC Sierra 2500 HD PCV Tube - 12700664
    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 2500 HD PCV Tube
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $13.16 MSRP: $20.88
    You Save: $7.72 (37%)
  • OEM 2021 GMC Sierra 2500 HD Inlet Pipe Gasket Diagram - 12648141
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Inlet Pipe Gasket

    PartNumber: 12648141
    OEM 2021 GMC Sierra 2500 HD Inlet Pipe Gasket - 12648141
    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 2500 HD Inlet Pipe Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $4.37 MSRP: $8.22
    You Save: $3.85 (47%)
  • OEM 2021 GMC Sierra 2500 HD Inlet Pipe Gasket Diagram - 12648141
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Inlet Pipe Gasket

    PartNumber: 12648141
    OEM 2021 GMC Sierra 2500 HD Inlet Pipe Gasket - 12648141
    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 2500 HD Inlet Pipe Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $4.37 MSRP: $8.22
    You Save: $3.85 (47%)
  • OEM 2021 GMC Sierra 2500 HD Outlet Hose Diagram - 12648340
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Outlet Hose

    PartNumber: 12648340
    OEM 2021 GMC Sierra 2500 HD Outlet Hose - 12648340
    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 2500 HD Outlet Hose
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $13.89 MSRP: $26.18
    You Save: $12.29 (47%)
  • OEM 2021 GMC Sierra 2500 HD Inlet Hose Diagram - 12641860
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Inlet Hose

    PartNumber: 12641860
    OEM 2021 GMC Sierra 2500 HD Inlet Hose - 12641860
    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 2500 HD Inlet Hose
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $11.60 MSRP: $21.86
    You Save: $10.26 (47%)
  • OEM 2021 GMC Sierra 2500 HD By-Pass Valve Gasket Diagram - 12680216
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD By-Pass Valve Gasket

    PartNumber: 12680216
    OEM 2021 GMC Sierra 2500 HD By-Pass Valve Gasket - 12680216
    Product Specifications
    • Notes: 6.6 Liter Diesel; 6.6 Liter Diesel, Upper
    • Item Dimensions: 4.1 x 3.5 x 0.2 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12670476
    • Part Description: 2021 GMC Sierra 2500 HD By-Pass Valve Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $4.66 MSRP: $8.42
    You Save: $3.76 (45%)
  • OEM 2021 GMC Sierra 2500 HD Sensor Asm-Exhaust Temperature (Position 1) Diagram - 12683486
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Sensor Asm-Exhaust Temperature (Position 1)

    PartNumber: 12683486
    OEM 2021 GMC Sierra 2500 HD Sensor Asm-Exhaust Temperature (Position 1) - 12683486
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd; Position 1; 6.6 Liter Diesel, Sensors, AT Converter; 6.6 Liter Diesel, Sensors, AT Muffler & Pipe, Posn 3
    • Other Names: Exhaust Temperature Sensor, Temperature Sensor
    • Item Dimensions: 7.8 x 0.6 x 0.2 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12672665
    • Part Description: 2021 GMC Sierra 2500 HD Sensor Asm-Exhaust Temperature (Position 1)
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $40.69 MSRP: $76.80
    You Save: $36.11 (48%)
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