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Replacement and OEM Parts for 2021 GMC Sierra 3500 HD Valves, Valve Covers & Valvetrain Components

2021 GMC Sierra 3500 HD Valves, Valve Covers & Valvetrain Components

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47 products about 2021 GMC Sierra 3500 HD Valves, Valve Covers & Valvetrain Components found

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  • OEM 2021 GMC Sierra 3500 HD Valve Lifters Diagram - 12648846
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    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Lifters

    PartNumber: 12648846
    OEM 2021 GMC Sierra 3500 HD Valve Lifters - 12648846
    Product Specifications
    • Other Names: Valve Lifters
    • Item Dimensions: 6.7 x 4.4 x 4.6 inches
    • Item Weight: 2.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12698945
    • Part Description: 2021 GMC Sierra 3500 HD Valve Lifters
    More Info
    Vehicle Fitment
    • 2021 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 GAS
    $30.09 MSRP: $49.82
    You Save: $19.73 (40%)
  • OEM 2021 GMC Sierra 3500 HD Filler Cap Diagram - 12662196
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    OEM (Genuine) 2021 GMC Sierra 3500 HD Filler Cap

    PartNumber: 12662196
    OEM 2021 GMC Sierra 3500 HD Filler Cap - 12662196
    Product Specifications
    • Notes: 6.6 Liter Gas
    • Other Names: Engine Cover, Filler Cap
    • Item Dimensions: 1.1 x 1.0 x 1.1 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12650076, 12655473
    • Replaced by: 12713786
    • Part Description: 2021 GMC Sierra 3500 HD Filler Cap
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $13.96 MSRP: $26.30
    You Save: $12.34 (47%)
  • OEM 2021 GMC Sierra 3500 HD Valve Cover Gasket Diagram - 12619787
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Cover Gasket

    PartNumber: 12619787
    OEM 2021 GMC Sierra 3500 HD Valve Cover Gasket - 12619787
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; 6.6 Liter Gas
    • Location: Driver Side; Passenger Side
    • Other Names: Valve Cover Gasket
    • Item Dimensions: 20.9 x 5.0 x 0.5 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Valve Cover Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $4.66 MSRP: $7.38
    You Save: $2.72 (37%)
  • OEM 2021 GMC Sierra 3500 HD Valve Cover Gasket Diagram - 12619787
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Cover Gasket

    PartNumber: 12619787
    OEM 2021 GMC Sierra 3500 HD Valve Cover Gasket - 12619787
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; 6.6 Liter Gas
    • Location: Driver Side; Passenger Side
    • Other Names: Valve Cover Gasket
    • Item Dimensions: 20.9 x 5.0 x 0.5 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Valve Cover Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $4.66 MSRP: $7.38
    You Save: $2.72 (37%)
  • OEM 2021 GMC Sierra 3500 HD Push Rods Diagram - 12619828
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    OEM (Genuine) 2021 GMC Sierra 3500 HD Push Rods

    PartNumber: 12619828
    OEM 2021 GMC Sierra 3500 HD Push Rods - 12619828
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd
    • Other Names: Push Rod
    • Item Dimensions: 8.7 x 0.9 x 0.5 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Push Rods
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $3.78 MSRP: $8.94
    You Save: $5.16 (58%)
  • OEM 2021 GMC Sierra 3500 HD Rocker Arms Diagram - 12619829
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Rocker Arms

    PartNumber: 12619829
    OEM 2021 GMC Sierra 3500 HD Rocker Arms - 12619829
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd
    • Other Names: Rocker Arms
    • Item Dimensions: 3.5 x 2.8 x 1.6 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Rocker Arms
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $14.97 MSRP: $24.75
    You Save: $9.78 (40%)
  • OEM 2021 GMC Sierra 3500 HD Valve Cover Diagram - 12680249
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    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Cover

    PartNumber: 12680249
    OEM 2021 GMC Sierra 3500 HD Valve Cover - 12680249
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; Right; 6.6 Liter Diesel, Upper Components
    • Location: Passenger Side
    • Other Names: Valve Cover
    • Item Dimensions: 20.8 x 9.2 x 5.0 inches
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Valve Cover
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $118.29 MSRP: $187.82
    You Save: $69.53 (38%)
  • OEM 2021 GMC Sierra 3500 HD Valve Cover Diagram - 12677065
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    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Cover

    PartNumber: 12677065
    OEM 2021 GMC Sierra 3500 HD Valve Cover - 12677065
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; Left; 6.6 Liter Diesel, Upper Components
    • Location: Driver Side
    • Other Names: Valve Cover
    • Item Dimensions: 30.0 x 14.4 x 7.0 inches
    • Item Weight: 7.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12677064
    • Part Description: 2021 GMC Sierra 3500 HD Valve Cover
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $116.94 MSRP: $185.66
    You Save: $68.72 (38%)
  • OEM 2021 GMC Sierra 3500 HD Valve Cover Diagram - 12665407
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Cover

    PartNumber: 12665407
    OEM 2021 GMC Sierra 3500 HD Valve Cover - 12665407
    Product Specifications
    • Other Names: Valve Cover
    • Item Dimensions: 22.8 x 6.5 x 6.8 inches
    • Item Weight: 4.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12727455
    • Part Description: 2021 GMC Sierra 3500 HD Valve Cover
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $67.09 MSRP: $106.54
    You Save: $39.45 (38%)
  • OEM 2021 GMC Sierra 3500 HD Valve Keeper Diagram - 10166345
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    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Keeper

    PartNumber: 10166345
    OEM 2021 GMC Sierra 3500 HD Valve Keeper - 10166345
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd
    • Other Names: Valve Keeper
    • Item Dimensions: 2.1 x 1.6 x 0.3 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Valve Keeper
    More Info
    Vehicle Fitment
    • 2021 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 GAS
    $3.26 MSRP: $5.17
    You Save: $1.91 (37%)
  • OEM 2021 GMC Sierra 3500 HD Filler Tube Diagram - 12668614
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    OEM (Genuine) 2021 GMC Sierra 3500 HD Filler Tube

    PartNumber: 12668614
    OEM 2021 GMC Sierra 3500 HD Filler Tube - 12668614
    Product Specifications
    • Notes: 6.6 Liter Gas
    • Item Dimensions: 3.2 x 2.3 x 2.0 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12634025
    • Part Description: 2021 GMC Sierra 3500 HD Filler Tube
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $4.58 MSRP: $7.58
    You Save: $3.00 (40%)
  • OEM 2021 GMC Sierra 3500 HD Valve Seals Diagram - 12689006
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Seals

    PartNumber: 12689006
    OEM 2021 GMC Sierra 3500 HD Valve Seals - 12689006
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; Exhaust
    • Other Names: Valve Seal
    • Item Dimensions: 1.9 x 1.9 x 1.1 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12645472
    • Part Description: 2021 GMC Sierra 3500 HD Valve Seals
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $4.66 MSRP: $7.39
    You Save: $2.73 (37%)
  • OEM 2021 GMC Sierra 3500 HD Head Gasket Diagram - 12636479
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Head Gasket

    PartNumber: 12636479
    OEM 2021 GMC Sierra 3500 HD Head Gasket - 12636479
    Product Specifications
    • Other Names: Head Gasket
    • Item Dimensions: 9.1 x 21.8 x 0.2 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12727485
    • Part Description: 2021 GMC Sierra 3500 HD Head Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $61.11 MSRP: $97.03
    You Save: $35.92 (38%)
  • OEM 2021 GMC Sierra 3500 HD Head Gasket Diagram - 12636479
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Head Gasket

    PartNumber: 12636479
    OEM 2021 GMC Sierra 3500 HD Head Gasket - 12636479
    Product Specifications
    • Other Names: Head Gasket
    • Item Dimensions: 9.1 x 21.8 x 0.2 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12727485
    • Part Description: 2021 GMC Sierra 3500 HD Head Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $61.11 MSRP: $97.03
    You Save: $35.92 (38%)
  • OEM 2021 GMC Sierra 3500 HD Valve Seals Diagram - 12689007
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Seals

    PartNumber: 12689007
    OEM 2021 GMC Sierra 3500 HD Valve Seals - 12689007
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; Intake
    • Other Names: Valve Seal
    • Item Dimensions: 1.8 x 1.9 x 1.0 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12645473
    • Part Description: 2021 GMC Sierra 3500 HD Valve Seals
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $5.10 MSRP: $8.09
    You Save: $2.99 (37%)
  • OEM 2021 GMC Sierra 3500 HD Filler Cap Diagram - 12677347
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Filler Cap

    PartNumber: 12677347
    OEM 2021 GMC Sierra 3500 HD Filler Cap - 12677347
    Product Specifications
    • Notes: 6.6 Liter Diesel, Upper Components
    • Other Names: Filler Cap
    • Item Dimensions: 3.0 x 3.2 x 2.1 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12683621
    • Part Description: 2021 GMC Sierra 3500 HD Filler Cap
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $8.52 MSRP: $16.07
    You Save: $7.55 (47%)
  • OEM 2021 GMC Sierra 3500 HD Valve Cover Diagram - 12689124
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Cover

    PartNumber: 12689124
    OEM 2021 GMC Sierra 3500 HD Valve Cover - 12689124
    Product Specifications
    • Other Names: Valve Cover
    • Item Dimensions: 20.6 x 6.1 x 4.5 inches
    • Fitment Type: Direct Replacement
    • Replaced by: 12723317
    • Part Description: 2021 GMC Sierra 3500 HD Valve Cover
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $64.83 MSRP: $107.31
    You Save: $42.48 (40%)
  • OEM 2021 GMC Sierra 3500 HD Head Gasket Diagram - 12688186
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Head Gasket

    PartNumber: 12688186
    OEM 2021 GMC Sierra 3500 HD Head Gasket - 12688186
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd
    • Other Names: Head Gasket
    • Item Dimensions: 21.7 x 9.1 x 0.2 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Head Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $66.49 MSRP: $110.07
    You Save: $43.58 (40%)
  • OEM 2021 GMC Sierra 3500 HD Head Gasket Diagram - 12688186
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Head Gasket

    PartNumber: 12688186
    OEM 2021 GMC Sierra 3500 HD Head Gasket - 12688186
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd
    • Other Names: Head Gasket
    • Item Dimensions: 21.7 x 9.1 x 0.2 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Head Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $66.49 MSRP: $110.07
    You Save: $43.58 (40%)
  • OEM 2021 GMC Sierra 3500 HD Rocker Arms Diagram - 12636189
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Rocker Arms

    PartNumber: 12636189
    OEM 2021 GMC Sierra 3500 HD Rocker Arms - 12636189
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; Intake
    • Other Names: Rocker Arms
    • Item Dimensions: 5.2 x 2.1 x 2.0 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Rocker Arms
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $16.63 MSRP: $26.39
    You Save: $9.76 (37%)
  • OEM 2021 GMC Sierra 3500 HD Rocker Arms Diagram - 12636190
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Rocker Arms

    PartNumber: 12636190
    OEM 2021 GMC Sierra 3500 HD Rocker Arms - 12636190
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; Exhaust
    • Other Names: Rocker Arms
    • Item Dimensions: 5.2 x 2.0 x 2.1 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Rocker Arms
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $16.63 MSRP: $26.39
    You Save: $9.76 (37%)
  • OEM 2021 GMC Sierra 3500 HD Valve Cover Gasket Diagram - 12691860
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Cover Gasket

    PartNumber: 12691860
    OEM 2021 GMC Sierra 3500 HD Valve Cover Gasket - 12691860
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; 6.6 Liter Diesel, Upper Components
    • Location: Driver Side; Passenger Side
    • Other Names: Valve Cover Gasket
    • Item Dimensions: 22.9 x 9.0 x 0.5 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12643242
    • Part Description: 2021 GMC Sierra 3500 HD Valve Cover Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $19.86 MSRP: $31.50
    You Save: $11.64 (37%)
  • OEM 2021 GMC Sierra 3500 HD Valve Cover Gasket Diagram - 12691860
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Cover Gasket

    PartNumber: 12691860
    OEM 2021 GMC Sierra 3500 HD Valve Cover Gasket - 12691860
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; 6.6 Liter Diesel, Upper Components
    • Location: Driver Side; Passenger Side
    • Other Names: Valve Cover Gasket
    • Item Dimensions: 22.9 x 9.0 x 0.5 inches
    • Item Weight: 0.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12643242
    • Part Description: 2021 GMC Sierra 3500 HD Valve Cover Gasket
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $19.86 MSRP: $31.50
    You Save: $11.64 (37%)
  • OEM 2021 GMC Sierra 3500 HD Valves Diagram - 12636187
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valves

    PartNumber: 12636187
    OEM 2021 GMC Sierra 3500 HD Valves - 12636187
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; Exhaust
    • Other Names: Valves
    • Item Dimensions: 5.2 x 1.3 x 1.3 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Valves
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $10.04 MSRP: $15.94
    You Save: $5.90 (38%)
  • OEM 2021 GMC Sierra 3500 HD Valves Diagram - 12636187
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valves

    PartNumber: 12636187
    OEM 2021 GMC Sierra 3500 HD Valves - 12636187
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; Exhaust
    • Other Names: Valves
    • Item Dimensions: 5.2 x 1.3 x 1.3 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Valves
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $10.04 MSRP: $15.94
    You Save: $5.90 (38%)
  • OEM 2021 GMC Sierra 3500 HD Valves Diagram - 12636188
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valves

    PartNumber: 12636188
    OEM 2021 GMC Sierra 3500 HD Valves - 12636188
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; Intake
    • Other Names: Valves
    • Item Dimensions: 5.1 x 1.3 x 1.3 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12734017
    • Part Description: 2021 GMC Sierra 3500 HD Valves
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $7.92 MSRP: $12.55
    You Save: $4.63 (37%)
  • OEM 2021 GMC Sierra 3500 HD Valves Diagram - 12636188
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valves

    PartNumber: 12636188
    OEM 2021 GMC Sierra 3500 HD Valves - 12636188
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd; Intake
    • Other Names: Valves
    • Item Dimensions: 5.1 x 1.3 x 1.3 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12734017
    • Part Description: 2021 GMC Sierra 3500 HD Valves
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $7.92 MSRP: $12.55
    You Save: $4.63 (37%)
  • OEM 2021 GMC Sierra 3500 HD Intake Valve Diagram - 12671856
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Intake Valve

    PartNumber: 12671856
    OEM 2021 GMC Sierra 3500 HD Intake Valve - 12671856
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd
    • Other Names: Intake Valve
    • Fitment Type: Direct Replacement
    • Replaced by: 12703404
    • Part Description: 2021 GMC Sierra 3500 HD Intake Valve
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $13.96 MSRP: $23.08
    You Save: $9.12 (40%)
  • OEM 2021 GMC Sierra 3500 HD Valve Springs Diagram - 12677931
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Valve Springs

    PartNumber: 12677931
    OEM 2021 GMC Sierra 3500 HD Valve Springs - 12677931
    Product Specifications
    • Other Names: Valve Spring
    • Item Dimensions: 2.8 x 1.9 x 1.4 inches
    • Item Weight: 0.70 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12728733
    • Part Description: 2021 GMC Sierra 3500 HD Valve Springs
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $4.47 MSRP: $7.39
    You Save: $2.92 (40%)
  • OEM 2021 GMC Sierra 3500 HD Cap-Valve Spring Diagram - 10166344
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Cap-Valve Spring

    PartNumber: 10166344
    OEM 2021 GMC Sierra 3500 HD Cap-Valve Spring - 10166344
    Product Specifications
    • Notes: Silverado, Sierra 3500 Hd
    • Item Dimensions: 2.2 x 2.0 x 1.7 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 3500 HD Cap-Valve Spring
    More Info
    Vehicle Fitment
    • 2021 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 GAS
    $12.61
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