Contact Us Live Chat or 1-888-220-8330
Search Bar
Search by Part Number or Keywords
  • My Garage
  • My Account
  • Cart
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Help Center
< Back ×
  • Body & Mirrors
  • Chassis & Brakes
  • Engine & Drivetrain
  • Electrical & Lighting
Login/Register My Account Track Order Help Center Contact Us
Replacement and OEM Parts for 2021 GMC Sierra 2500 HD Belt Tensioner

2021 GMC Sierra 2500 HD Belt Tensioner

My Vehicle Change Vehicle
2021 GMC Sierra 2500 HD
Change Vehicle
Vehicle Options
We need more information about your vehicle to make a correct determination of fitment
< Back to View All
Timing Belts, Chains, Cams & Related Parts
  • Department
  • Prices

4 Products found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • 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
    OEM 2021 GMC Sierra 2500 HD Tensioner Kit-Timing Chain - 12630107
    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, SLE, SLT | 8 Cyl 6.6 L GAS
    $38.67 MSRP: $57.72
    You Save: $19.05 (34%)
  • OEM 2021 GMC Sierra 2500 HD Serpentine Tensioner Diagram - 12654271
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Tensioner

    PartNumber: 12654271
    OEM 2021 GMC Sierra 2500 HD Serpentine Tensioner - 12654271
    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: Belt Tensioner, Serpentine Tensioner
    • Item Dimensions: 8.2 x 6.1 x 5.1 inches
    • Item Weight: 2.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L GAS
    $42.06 MSRP: $69.64
    You Save: $27.58 (40%)
  • OEM 2021 GMC Sierra 2500 HD Serpentine Tensioner Diagram - 12673657
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Tensioner

    PartNumber: 12673657
    OEM 2021 GMC Sierra 2500 HD Serpentine Tensioner - 12673657
    Product Specifications
    • Notes: 6.6 Liter Diesel, W/O Dual Alternators, Serpentine Belt; 6.6 Liter Diesel, W/Dual Alternators, Serpentine Belt; Silverado, Sierra 2500 Hd; Diesel; Main
    • Other Names: Belt Tensioner, Serpentine Tensioner
    • Item Dimensions: 8.2 x 5.2 x 5.1 inches
    • Item Weight: 2.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: 2021 GMC Sierra 2500 HD Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $43.13 MSRP: $71.37
    You Save: $28.24 (40%)
  • OEM 2021 GMC Sierra 2500 HD Serpentine Tensioner Diagram - 12700588
    View Related Parts

    OEM (Genuine) 2021 GMC Sierra 2500 HD Serpentine Tensioner

    PartNumber: 12700588
    OEM 2021 GMC Sierra 2500 HD Serpentine Tensioner - 12700588
    Product Specifications
    • Notes: 6.6 Liter Diesel, W/O Dual Alternators, Drive Belt; 6.6 Liter Diesel, W/Dual Alternators, Drive Belt; Silverado, Sierra 2500 Hd; Diesel; Accessory
    • Other Names: Belt Tensioner, Serpentine Tensioner
    • Item Dimensions: 6.8 x 4.3 x 4.2 inches
    • Item Weight: 2.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 12735533
    • Part Description: 2021 GMC Sierra 2500 HD Serpentine Tensioner
    More Info
    Vehicle Fitment
    • 2021 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT | 8 Cyl 6.6 L DIESEL
    $38.54 MSRP: $63.80
    You Save: $25.26 (40%)