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Replacement and OEM Parts for 2021 GMC Sierra 3500 HD Idler Pulley

2021 GMC Sierra 3500 HD Idler Pulley

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2021 GMC Sierra 3500 HD
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  • OEM 2021 GMC Sierra 3500 HD Serpentine Idler Pulley Diagram - 12611935
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Serpentine Idler Pulley

    PartNumber: 12611935
    OEM 2021 GMC Sierra 3500 HD Serpentine Idler Pulley - 12611935
    Product Specifications
    • Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 1; 6.6 Liter Diesel, W/Dual Alternators, Type 1; Silverado, Sierra 3500 Hd; Dual Alternator; Diesel; Lower; Right;Silverado, Sierra 3500 Hd; Dual Alternator; Diesel; Upper;Silverado, Sierra 3500 Hd; Single Alternator; Diesel; Lower;Silverado, Sierra 3500 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 3500 HD Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
    $54.11 MSRP: $102.11
    You Save: $48.00 (48%)
  • OEM 2021 GMC Sierra 3500 HD Serpentine Idler Pulley Diagram - 12695659
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Serpentine Idler Pulley

    PartNumber: 12695659
    OEM 2021 GMC Sierra 3500 HD Serpentine Idler Pulley - 12695659
    Product Specifications
    • Notes: 6.6 Liter Gas, W/O Dual Alternators; 6.6 Liter Gas, W/Dual Alternators, Smooth; Silverado, Sierra 3500 Hd; Dual Alternator; Gas; Upper;Silverado, Sierra 3500 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 3500 HD Serpentine Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $22.65 MSRP: $42.77
    You Save: $20.12 (48%)
  • OEM 2021 GMC Sierra 3500 HD Idler Pulley Diagram - 12626075
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Idler Pulley

    PartNumber: 12626075
    OEM 2021 GMC Sierra 3500 HD Idler Pulley - 12626075
    Product Specifications
    • Other Names: Idler Pulley
    • Item Dimensions: 4.3 x 4.4 x 4.2 inches
    • Item Weight: 0.80 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12728996
    • Part Description: 2021 GMC Sierra 3500 HD Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $46.31 MSRP: $87.40
    You Save: $41.09 (48%)
  • OEM 2021 GMC Sierra 3500 HD Idler Pulley Diagram - 12675951
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Idler Pulley

    PartNumber: 12675951
    OEM 2021 GMC Sierra 3500 HD Idler Pulley - 12675951
    Product Specifications
    • Other Names: Idler Pulley
    • Item Dimensions: 3.2 x 3.2 x 3.1 inches
    • Item Weight: 1.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12729057
    • Part Description: 2021 GMC Sierra 3500 HD Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $56.46 MSRP: $106.55
    You Save: $50.09 (48%)
  • OEM 2021 GMC Sierra 3500 HD Idler Pulley Diagram - 12676231
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Idler Pulley

    PartNumber: 12676231
    OEM 2021 GMC Sierra 3500 HD Idler Pulley - 12676231
    Product Specifications
    • Notes: 6.6 Liter Gas, W/Dual Alternators, Smooth; Silverado, Sierra 3500 Hd; Dual Alternator; Gas; Lower; Smooth
    • Location: Driver Side
    • Other Names: Idler Pulley
    • Item Dimensions: 3.2 x 3.1 x 3.2 inches
    • Item Weight: 1.30 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12729056
    • Part Description: 2021 GMC Sierra 3500 HD Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $87.18 MSRP: $164.50
    You Save: $77.32 (48%)
  • OEM 2021 GMC Sierra 3500 HD Idler Pulley Diagram - 12678981
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Idler Pulley

    PartNumber: 12678981
    OEM 2021 GMC Sierra 3500 HD Idler Pulley - 12678981
    Product Specifications
    • Other Names: Idler Pulley
    • Item Dimensions: 4.8 x 4.6 x 4.5 inches
    • Item Weight: 3.10 Pounds
    • Replaced by: 12708716
    • Part Description: 2021 GMC Sierra 3500 HD Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $90.19 MSRP: $170.19
    You Save: $80.00 (48%)
  • OEM 2021 GMC Sierra 3500 HD Idler Pulley Diagram - 12708716
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 3500 HD Idler Pulley

    PartNumber: 12708716
    OEM 2021 GMC Sierra 3500 HD Idler Pulley - 12708716
    Product Specifications
    • Notes: 6.6 Liter Diesel, W/O Dual Alternators, Type 2; 6.6 Liter Diesel, W/Dual Alternators, Type 2; Silverado, Sierra 3500 Hd; Dual Alternator; Diesel; Lower; Center;Silverado, Sierra 3500 Hd; Single Alternator; Diesel; Center
    • Location: Passenger Side
    • Other Names: Idler Pulley
    • Fitment Type: Direct Replacement
    • Replaces: 12678981
    • Part Description: 2021 GMC Sierra 3500 HD Idler Pulley
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 3500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $90.19 MSRP: $170.19
    You Save: $80.00 (48%)