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2021 GMC Sierra 2500 HD Timing Belts, Chains, Cams & Related Parts

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2021 GMC Sierra 2500 HD
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108 products about 2021 GMC Sierra 2500 HD Timing Belts, Chains, Cams & Related Parts found

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  • OEM 2021 GMC Sierra 2500 HD Timing Chain - 12646387
    OEM 2021 GMC Sierra 2500 HD Timing Chain Diagram - 12646387
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Timing Chain

    PartNumber: 12646387
    $58.04 MSRP: $101.00
    You Save: $42.96 (43%)
    Product Specifications
    • Other Names: Timing Chain
    • Item Dimensions: 9.6 x 6.2 x 0.7 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Timing Chain
    More Info
  • OEM 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain - 12630107
    OEM 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain Diagram - 12630107
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain

    PartNumber: 12630107
    $35.83 MSRP: $62.37
    You Save: $26.54 (43%)
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd
    • Other Names: Chain Tensioner, Tensioner, Timing Tensioner
    • Item Dimensions: 6.1 x 5.2 x 3.1 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain - 12630107
    OEM 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain Diagram - 12630107
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain

    PartNumber: 12630107
    $35.83 MSRP: $62.37
    You Save: $26.54 (43%)
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd
    • Other Names: Chain Tensioner, Tensioner, Timing Tensioner
    • Item Dimensions: 6.1 x 5.2 x 3.1 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain - 12630107
    OEM 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain Diagram - 12630107
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain

    PartNumber: 12630107
    $35.83 MSRP: $62.37
    You Save: $26.54 (43%)
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd
    • Other Names: Chain Tensioner, Tensioner, Timing Tensioner
    • Item Dimensions: 6.1 x 5.2 x 3.1 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain - 12630107
    OEM 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain Diagram - 12630107
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain

    PartNumber: 12630107
    $35.83 MSRP: $62.37
    You Save: $26.54 (43%)
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd
    • Other Names: Chain Tensioner, Tensioner, Timing Tensioner
    • Item Dimensions: 6.1 x 5.2 x 3.1 inches
    • Item Weight: 0.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor - 12658178
    OEM 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor Diagram - 12658178
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor

    PartNumber: 12658178
    $43.31 MSRP: $94.33
    You Save: $51.02 (55%)
    Product Specifications
    • Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 2500 Hd; Gas
    • Other Names: AC Belt
    • Item Dimensions: 10.1 x 9.6 x 3.6 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor - 12658178
    OEM 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor Diagram - 12658178
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor

    PartNumber: 12658178
    $43.31 MSRP: $94.33
    You Save: $51.02 (55%)
    Product Specifications
    • Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 2500 Hd; Gas
    • Other Names: AC Belt
    • Item Dimensions: 10.1 x 9.6 x 3.6 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor - 12658178
    OEM 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor Diagram - 12658178
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor

    PartNumber: 12658178
    $43.31 MSRP: $94.33
    You Save: $51.02 (55%)
    Product Specifications
    • Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 2500 Hd; Gas
    • Other Names: AC Belt
    • Item Dimensions: 10.1 x 9.6 x 3.6 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor - 12658178
    OEM 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor Diagram - 12658178
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor

    PartNumber: 12658178
    $43.31 MSRP: $94.33
    You Save: $51.02 (55%)
    Product Specifications
    • Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators; Silverado, Sierra 2500 Hd; Gas
    • Other Names: AC Belt
    • Item Dimensions: 10.1 x 9.6 x 3.6 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Belt Kit-A/C Compressor
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Front Cover Seal - 12634614
    OEM 2021 GMC Sierra 2500 HD Front Cover Seal Diagram - 12634614
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal

    PartNumber: 12634614
    $11.60 MSRP: $19.17
    You Save: $7.57 (40%)
    Product Specifications
    • Notes: 6.6 Liter Gas; Silverado, Sierra 2500 Hd
    • Item Dimensions: 3.6 x 3.5 x 0.5 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12693255
    • Part Description: 2021 GMC Sierra 2500 HD Front Cover Seal
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Front Cover Seal - 12634614
    OEM 2021 GMC Sierra 2500 HD Front Cover Seal Diagram - 12634614
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal

    PartNumber: 12634614
    $11.60 MSRP: $19.17
    You Save: $7.57 (40%)
    Product Specifications
    • Notes: 6.6 Liter Gas; Silverado, Sierra 2500 Hd
    • Item Dimensions: 3.6 x 3.5 x 0.5 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12693255
    • Part Description: 2021 GMC Sierra 2500 HD Front Cover Seal
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Vibration Damper Bolt - 11547372
    OEM 2021 GMC Sierra 2500 HD Vibration Damper Bolt Diagram - 11547372
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Vibration Damper Bolt

    PartNumber: 11547372
    $25.81 MSRP: $41.00
    You Save: $15.19 (38%)
    Product Specifications
    • Notes: 6.6 Liter Gas
    • Item Dimensions: 5.2 x 1.2 x 1.2 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Vibration Damper Bolt
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Module Bolt - 11588725
    OEM 2021 GMC Sierra 2500 HD Module Bolt Diagram - 11588725
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    OEM (Genuine) 2021 GMC Sierra 2500 HD Module Bolt

    PartNumber: 11588725
    $4.88 MSRP: $8.05
    You Save: $3.17 (40%)
    Product Specifications
    • Notes: 6.6 Liter Gas, Short
    • Item Dimensions: 2.2 x 1.2 x 0.8 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Module Bolt
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Module Bolt - 11588725
    OEM 2021 GMC Sierra 2500 HD Module Bolt Diagram - 11588725
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Module Bolt

    PartNumber: 11588725
    $4.88 MSRP: $8.05
    You Save: $3.17 (40%)
    Product Specifications
    • Notes: 6.6 Liter Gas, Short
    • Item Dimensions: 2.2 x 1.2 x 0.8 inches
    • Item Weight: 0.40 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Module Bolt
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Serpentine Idler Pulley - 12611935
    OEM 2021 GMC Sierra 2500 HD Serpentine Idler Pulley Diagram - 12611935
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Idler Pulley

    PartNumber: 12611935
    $56.38 MSRP: $106.39
    You Save: $50.01 (48%)
    Product Specifications
    • Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 1; 6.6 Liter Diesel, W/Dual Alternators, Type 1; Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Lower; Right;Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Upper;Silverado, Sierra 2500 Hd; Single Alternator; Diesel; Lower;Silverado, Sierra 2500 Hd; Single Alternator; Diesel; Upper
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 4.3 x 4.4 x 4.2 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12581700
    • Part Description: 2021 GMC Sierra 2500 HD Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 2500 HD Serpentine Idler Pulley - 12611935
    OEM 2021 GMC Sierra 2500 HD Serpentine Idler Pulley Diagram - 12611935
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Idler Pulley

    PartNumber: 12611935
    $56.38 MSRP: $106.39
    You Save: $50.01 (48%)
    Product Specifications
    • Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 1; 6.6 Liter Diesel, W/Dual Alternators, Type 1; Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Lower; Right;Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Upper;Silverado, Sierra 2500 Hd; Single Alternator; Diesel; Lower;Silverado, Sierra 2500 Hd; Single Alternator; Diesel; Upper
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 4.3 x 4.4 x 4.2 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12581700
    • Part Description: 2021 GMC Sierra 2500 HD Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 2500 HD Serpentine Idler Pulley - 12611935
    OEM 2021 GMC Sierra 2500 HD Serpentine Idler Pulley Diagram - 12611935
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Idler Pulley

    PartNumber: 12611935
    $56.38 MSRP: $106.39
    You Save: $50.01 (48%)
    Product Specifications
    • Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 1; 6.6 Liter Diesel, W/Dual Alternators, Type 1; Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Lower; Right;Silverado, Sierra 2500 Hd; Dual Alternator; Diesel; Upper;Silverado, Sierra 2500 Hd; Single Alternator; Diesel; Lower;Silverado, Sierra 2500 Hd; Single Alternator; Diesel; Upper
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 4.3 x 4.4 x 4.2 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12581700
    • Part Description: 2021 GMC Sierra 2500 HD Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 2500 HD Timing Gear Set - 12691939
    OEM 2021 GMC Sierra 2500 HD Timing Gear Set Diagram - 12691939
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Timing Gear Set

    PartNumber: 12691939
    $159.04 MSRP: $252.54
    You Save: $93.50 (38%)
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd
    • Other Names: Camshaft Gear, Timing Gear Set
    • Item Dimensions: 9.1 x 8.7 x 2.6 inches
    • Item Weight: 5.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12642320
    • Replaced by: 12721405
    • Part Description: 2021 GMC Sierra 2500 HD Timing Gear Set
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 2500 HD Timing Gear Set - 12691939
    OEM 2021 GMC Sierra 2500 HD Timing Gear Set Diagram - 12691939
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Timing Gear Set

    PartNumber: 12691939
    $159.04 MSRP: $252.54
    You Save: $93.50 (38%)
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd
    • Other Names: Camshaft Gear, Timing Gear Set
    • Item Dimensions: 9.1 x 8.7 x 2.6 inches
    • Item Weight: 5.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12642320
    • Replaced by: 12721405
    • Part Description: 2021 GMC Sierra 2500 HD Timing Gear Set
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 2500 HD Timing Gear Set - 12691939
    OEM 2021 GMC Sierra 2500 HD Timing Gear Set Diagram - 12691939
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Timing Gear Set

    PartNumber: 12691939
    $159.04 MSRP: $252.54
    You Save: $93.50 (38%)
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd
    • Other Names: Camshaft Gear, Timing Gear Set
    • Item Dimensions: 9.1 x 8.7 x 2.6 inches
    • Item Weight: 5.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12642320
    • Replaced by: 12721405
    • Part Description: 2021 GMC Sierra 2500 HD Timing Gear Set
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 2500 HD Front Cover Seal - 97209341
    OEM 2021 GMC Sierra 2500 HD Front Cover Seal Diagram - 97209341
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal

    PartNumber: 97209341
    $41.14 MSRP: $77.64
    You Save: $36.50 (48%)
    Product Specifications
    • Notes: 6.6 Liter Diesel, Upper Components; Silverado, Sierra 2500 Hd
    • Other Names: Cover Seal, Front Cover Seal, Front Seal
    • Item Dimensions: 6.2 x 6.1 x 1.0 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Front Cover Seal
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 2500 HD Front Cover Seal - 97209341
    OEM 2021 GMC Sierra 2500 HD Front Cover Seal Diagram - 97209341
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Front Cover Seal

    PartNumber: 97209341
    $41.14 MSRP: $77.64
    You Save: $36.50 (48%)
    Product Specifications
    • Notes: 6.6 Liter Diesel, Upper Components; Silverado, Sierra 2500 Hd
    • Other Names: Cover Seal, Front Cover Seal, Front Seal
    • Item Dimensions: 6.2 x 6.1 x 1.0 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Front Cover Seal
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 2500 HD Camshaft - 12633925
    OEM 2021 GMC Sierra 2500 HD Camshaft Diagram - 12633925
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Camshaft

    PartNumber: 12633925
    $153.85 MSRP: $244.26
    You Save: $90.41 (38%)
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd
    • Other Names: Camshaft
    • Item Dimensions: 28.1 x 3.5 x 3.4 inches
    • Item Weight: 12.10 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Camshaft
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL
  • OEM 2021 GMC Sierra 2500 HD Bracket Bolt - 11588741
    OEM 2021 GMC Sierra 2500 HD Bracket Bolt Diagram - 11588741
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Bracket Bolt

    PartNumber: 11588741
    $6.13 MSRP: $10.11
    You Save: $3.98 (40%)
    Product Specifications
    • Item Dimensions: 3.1 x 1.0 x 1.0 inches
    • Item Weight: 0.50 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 11519184
    • Part Description: 2021 GMC Sierra 2500 HD Bracket Bolt
    More Info
  • OEM 2021 GMC Sierra 2500 HD CAMSHAFT ASM - 12672469
    OEM 2021 GMC Sierra 2500 HD CAMSHAFT ASM Diagram - 12672469
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD CAMSHAFT ASM

    PartNumber: 12672469
    $131.10 MSRP: $216.96
    You Save: $85.86 (40%)
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd
    • Other Names: Camshaft
    • Item Dimensions: 28.6 x 3.1 x 3.1 inches
    • Item Weight: 10.30 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD CAMSHAFT ASM
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Actuator - 12689342
    OEM 2021 GMC Sierra 2500 HD Actuator Diagram - 12689342
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Actuator

    PartNumber: 12689342
    $124.99 MSRP: $198.42
    You Save: $73.43 (38%)
    Product Specifications
    • Notes: Silverado, Sierra 2500 Hd
    • Other Names: Actuator
    • Item Dimensions: 10.3 x 9.7 x 4.3 inches
    • Item Weight: 3.90 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Actuator
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
  • OEM 2021 GMC Sierra 2500 HD Crankshaft Gear - 12631214
    OEM 2021 GMC Sierra 2500 HD Crankshaft Gear Diagram - 12631214
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Crankshaft Gear

    PartNumber: 12631214
    $22.49 MSRP: $37.24
    You Save: $14.75 (40%)
    Product Specifications
    • Other Names: Crankshaft Gear, Timing Gear
    • Item Dimensions: 4.8 x 4.4 x 2.3 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12713934
    • Part Description: 2021 GMC Sierra 2500 HD Crankshaft Gear
    More Info
  • OEM 2021 GMC Sierra 2500 HD Crankshaft Gear - 12631214
    OEM 2021 GMC Sierra 2500 HD Crankshaft Gear Diagram - 12631214
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Crankshaft Gear

    PartNumber: 12631214
    $22.49 MSRP: $37.24
    You Save: $14.75 (40%)
    Product Specifications
    • Other Names: Crankshaft Gear, Timing Gear
    • Item Dimensions: 4.8 x 4.4 x 2.3 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12713934
    • Part Description: 2021 GMC Sierra 2500 HD Crankshaft Gear
    More Info
  • OEM 2021 GMC Sierra 2500 HD Crankshaft Gear - 12631214
    OEM 2021 GMC Sierra 2500 HD Crankshaft Gear Diagram - 12631214
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Crankshaft Gear

    PartNumber: 12631214
    $22.49 MSRP: $37.24
    You Save: $14.75 (40%)
    Product Specifications
    • Other Names: Crankshaft Gear, Timing Gear
    • Item Dimensions: 4.8 x 4.4 x 2.3 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12713934
    • Part Description: 2021 GMC Sierra 2500 HD Crankshaft Gear
    More Info
  • OEM 2021 GMC Sierra 2500 HD Serpentine Idler Pulley - 12695659
    OEM 2021 GMC Sierra 2500 HD Serpentine Idler Pulley Diagram - 12695659
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Idler Pulley

    PartNumber: 12695659
    $23.27 MSRP: $43.93
    You Save: $20.66 (48%)
    Product Specifications
    • Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators, Smooth; Silverado, Sierra 2500 Hd; Dual Alternator; Gas; Upper;Silverado, Sierra 2500 Hd; Single Alternator; Gas
    • Location: Passenger Side
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 5.0 x 4.6 x 4.4 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12605492
    • Part Description: 2021 GMC Sierra 2500 HD Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, AT4X, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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