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 GMC Sierra 2500 HD Classic Idler Pulley
Select your vehicle for the best product fit
  • Select Vehicle by Model
  • Select Vehicle by VIN
Select Make
Select Model
Select Year
or

GMC Sierra 2500 HD Classic Idler Pulley

< Back to View All
Timing Belts, Chains, Cams & Related Parts
  • Department
  • Brands
  • Prices

24 Products found

Show Item:
  • 30
  • 60
  • 90
Sort by:
Recommended
Filter
Sort
View by
  • OEM GMC Sierra 2500 HD Classic Serpentine Idler Pulley Diagram - 12669569
    View Related Parts

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

    PartNumber: 12669569
    OEM GMC Sierra 2500 HD Classic Serpentine Idler Pulley - 12669569
    Product Specifications
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 6.8 x 4.4 x 4.4 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12555609, 12580771
    • Part Description: GMC Sierra 2500 HD Classic Serpentine Idler Pulley
    More Info
    $54.20 MSRP: $102.28
    You Save: $48.08 (48%)
  • Gates Drivealign Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic - 36177

    Gates® Drivealign Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 36177
    Product Specifications
    • Bearing Bore Inside Diameter 1: 12 mm
    • Contact Surface: V-Ribbed Grooved
    • Material: Steel
    • Number of Grooves: 6
    • Number Of Pulleys: 1
    • Outside Diameter: 85 mm
    • Pulley 1 Flanged: Yes
    • UPC: 072053392852
    • Width: 29 mm
    • Part Description: GMC Sierra 2500 HD Classic Drivealign Drive Belt Idler Pulley
    More Info
    $29.47
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic - 89170

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 89170
    Product Specifications
    • Bearing Inner Diameter 1: 12
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: N
    • Groove Quantity: 6
    • Material: Steel
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 90
    • Pulley Width: 30
    • UPC: 036687655264
    • Part Description: GMC Sierra 2500 HD Classic No Slack Light Duty Idler Tensioner Pulley
    More Info
    $33.22
  • OEM GMC Sierra 2500 HD Classic Serpentine Tensioner Diagram - 12580196
    View Related Parts

    OEM (Genuine) GMC Sierra 2500 HD Classic Serpentine Tensioner

    PartNumber: 12580196
    OEM GMC Sierra 2500 HD Classic Serpentine Tensioner - 12580196
    Product Specifications
    • Other Names: Belt Tensioner, Serpentine Tensioner, Tensioner
    • Item Dimensions: 4.8 x 3.1 x 2.7 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12562065, 12565372
    • Part Description: GMC Sierra 2500 HD Classic Serpentine Tensioner
    More Info
    $55.60 MSRP: $104.91
    You Save: $49.31 (48%)
  • Four Seasons Idler Tensioner Pulley for GMC Sierra 2500 HD Classic - 45935

    Four Seasons® Idler Tensioner Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 45935
    Product Specifications
    • Belt Type: Back Idler
    • Belt Width IN: 1.000
    • Belt Width MM: 28.575
    • Bore Dia. IN: .472
    • Color: Black
    • Groove Quantity: 6
    • I.D. MM: 32.0
    • Inside Diameter: 1.18
    • Material: Steel
    • Meets / Exceeds OEM: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware: Not Included
    • O.D. MM: 90.488
    • Outside Diameter: 3.500
    • Pulley Type: Idler Pulley
    • Pulley Width IN: 1.130
    • Pulley Width MM: Idler / Tensioner Pulley
    • Style: Idler / Tensioner Pulley
    • UPC: 096361030800
    • Width: 30
    • Part Description: GMC Sierra 2500 HD Classic Idler Tensioner Pulley
    More Info
    $19.69
  • Gates Drivealign Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic - 36299

    Gates® Drivealign Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 36299
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: Smooth/Backside
    • Material: Steel
    • Number of Grooves: 0
    • Number Of Pulleys: 1
    • Outside Diameter: 3.54"
    • Pulley 1 Flanged: No
    • UPC: 072053394078
    • Width: 31 mm
    • Part Description: GMC Sierra 2500 HD Classic Drivealign Drive Belt Idler Pulley
    More Info
    $25.40
  • Dayco No Slack Light Duty New Style Idler Tensioner Pulley for GMC Sierra 2500 HD Classic - 89006

    Dayco® No Slack Light Duty New Style Idler Tensioner Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 89006
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Steel
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 90
    • Pulley Width: 30
    • UPC: 038244156948
    • Part Description: GMC Sierra 2500 HD Classic No Slack Light Duty New Style Idler Tensioner Pulley
    More Info
    $19.32
  • Four Seasons Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic - 45975

    Four Seasons® Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 45975
    Product Specifications
    • Belt Type: Serpentine
    • Belt Width IN: 1.000
    • Belt Width MM: 25.400
    • Bore Dia. IN: .69
    • Color: Black
    • Groove Quantity: Smooth
    • I.D. MM: 17
    • Inside Diameter: 0.6875
    • Material: Steel
    • Meets / Exceeds OEM: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware: Not Included
    • O.D. MM: 88.900
    • Outside Diameter: 3.500
    • Pulley Type: Back Idler
    • Pulley Width IN: 1
    • Pulley Width MM: 25.4
    • Style: Idler / Tensioner Pulley
    • UPC: 096361459755
    • Width: 25.4
    • Part Description: GMC Sierra 2500 HD Classic Drive Belt Idler Pulley
    More Info
    $13.76
  • OEM GMC Sierra 2500 HD Classic Serpentine Tensioner Diagram - 98094201
    View Related Parts

    OEM (Genuine) GMC Sierra 2500 HD Classic Serpentine Tensioner

    PartNumber: 98094201
    OEM GMC Sierra 2500 HD Classic Serpentine Tensioner - 98094201
    Product Specifications
    • Other Names: Belt Tensioner, Serpentine Tensioner
    • Item Dimensions: 7.0 x 6.3 x 4.3 inches
    • Item Weight: 1.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 97288625, 97329062
    • Part Description: GMC Sierra 2500 HD Classic Serpentine Tensioner
    More Info
    $86.04 MSRP: $142.41
    You Save: $56.37 (40%)
  • Gates Drivealign Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic - 36169

    Gates® Drivealign Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 36169
    Product Specifications
    • Bearing Bore Inside Diameter 1: 12 mm
    • Contact Surface: Smooth/Backside
    • Material: Steel
    • Number of Grooves: 0
    • Number Of Pulleys: 1
    • Outside Diameter: 60 mm
    • Pulley 1 Flanged: No
    • UPC: 072053392777
    • Width: 21.25 mm
    • Part Description: GMC Sierra 2500 HD Classic Drivealign Drive Belt Idler Pulley
    More Info
    $24.88
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic - 89542

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 89542
    Product Specifications
    • Bearing Inner Diameter 1: 12
    • Bearing Width: 8
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Steel
    • Max Belt Width: 04 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 60
    • Pulley Width: 21
    • UPC: 036687843036
    • Part Description: GMC Sierra 2500 HD Classic No Slack Light Duty Idler Tensioner Pulley
    More Info
    $21.65
  • Four Seasons Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic - 45071

    Four Seasons® Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 45071
    Product Specifications
    • Belt Type: Serpentine
    • Belt Width IN: 1.000
    • Belt Width MM: 25.400
    • Bore Dia. IN: .399
    • Color: Black
    • Groove Quantity: Smooth
    • I.D. MM: 10.160
    • Inside Diameter: 0.390625
    • Material: Steel
    • Meets / Exceeds OEM: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware: Not Included
    • O.D. MM: 76.200
    • Outside Diameter: 3.000
    • Pulley Type: Back Idler
    • Pulley Width IN: 1.18
    • Pulley Width MM: 30
    • Style: Idler / Tensioner Pulley
    • UPC: 096361450714
    • Width: 30
    • Part Description: GMC Sierra 2500 HD Classic Drive Belt Idler Pulley
    More Info
    $11.25
  • OEM GMC Sierra 2500 HD Classic Serpentine Idler Pulley Diagram - 98057284
    View Related Parts

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

    PartNumber: 98057284
    OEM GMC Sierra 2500 HD Classic Serpentine Idler Pulley - 98057284
    Product Specifications
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 4.4 x 4.2 x 2.2 inches
    • Item Weight: 1.10 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 97209546, 98072072, 97233352
    • Part Description: GMC Sierra 2500 HD Classic Serpentine Idler Pulley
    More Info
    $29.26 MSRP: $55.21
    You Save: $25.95 (48%)
  • Gates Drivealign Upper Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic - 36310

    Gates® Drivealign Upper Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 36310
    Product Specifications
    • Bearing Bore Inside Diameter 1: 10 mm
    • Contact Surface: Smooth/Backside
    • Material: Steel
    • Number of Grooves: 0
    • Number Of Pulleys: 1
    • Outside Diameter: 2.99"
    • Pulley 1 Flanged: No
    • UPC: 072053394184
    • Width: 31.5 mm
    • Part Description: GMC Sierra 2500 HD Classic Drivealign Upper Drive Belt Idler Pulley
    More Info
    $23.82
  • Dayco No Slack Upper Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic - 89165

    Dayco® No Slack Upper Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 89165
    Product Specifications
    • Bearing Inner Diameter 1: 10.15
    • Bearing Width: 14
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Steel
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 76
    • Pulley Width: 30
    • UPC: 036687653963
    • Part Description: GMC Sierra 2500 HD Classic No Slack Upper Light Duty Idler Tensioner Pulley
    More Info
    $19.94
  • OEM GMC Sierra 2500 HD Classic Serpentine Idler Pulley Diagram - 12634218
    View Related Parts

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

    PartNumber: 12634218
    OEM GMC Sierra 2500 HD Classic Serpentine Idler Pulley - 12634218
    Product Specifications
    • Other Names: Idler Pulley, Pulley, Serpentine Idler Pulley
    • Item Dimensions: 4.3 x 4.3 x 2.1 inches
    • Item Weight: 0.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 14102597
    • Part Description: GMC Sierra 2500 HD Classic Serpentine Idler Pulley
    More Info
    $64.71 MSRP: $122.12
    You Save: $57.41 (48%)
  • Four Seasons Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic - 45971

    Four Seasons® Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 45971
    Product Specifications
    • Belt Type: Serpentine
    • Belt Width IN: .88
    • Belt Width MM: 22.4
    • Bore Dia. IN: .67
    • Color: Black
    • Groove Quantity: 6
    • I.D. MM: 17
    • Inside Diameter: 0.671875
    • Material: Plastic
    • Meets / Exceeds OEM: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware: Not Included
    • O.D. MM: 76.0
    • Outside Diameter: 2.99
    • Pulley Type: Idler Pulley
    • Pulley Width IN: 1.13
    • Pulley Width MM: 28.7
    • Style: Idler / Tensioner Pulley
    • UPC: 096361459717
    • Width: 28.7
    • Part Description: GMC Sierra 2500 HD Classic Drive Belt Idler Pulley
    More Info
    $12.39
  • Gates Drivealign Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic - 36239

    Gates® Drivealign Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 36239
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: V-Ribbed Grooved
    • Material: Steel
    • Number of Grooves: 6
    • Number Of Pulleys: 1
    • Outside Diameter: 70 mm
    • Pulley 1 Flanged: No
    • UPC: 072053393460
    • Width: 23 mm
    • Part Description: GMC Sierra 2500 HD Classic Drivealign Drive Belt Idler Pulley
    More Info
    $20.22
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic - 89135

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 89135
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Steel
    • Max Belt Width: 04 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 63.3
    • Pulley Width: 17.75
    • UPC: 036687614834
    • Part Description: GMC Sierra 2500 HD Classic No Slack Light Duty Idler Tensioner Pulley
    More Info
    $16.04
  • Four Seasons Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic - 45084

    Four Seasons® Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 45084
    Product Specifications
    • Belt Type: Serpentine
    • Belt Width IN: 0.500
    • Belt Width MM: 15.9
    • Bore Dia. IN: .67
    • Color: Black
    • Groove Quantity: Smooth
    • I.D. MM: 17
    • Inside Diameter: 0.671875
    • Material: Steel
    • Meets / Exceeds OEM: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware: Not Included
    • O.D. MM: 63.500
    • Outside Diameter: 2.48
    • Pulley Type: Idler Pulley
    • Pulley Width IN: 0.71
    • Pulley Width MM: Idler Pulley
    • Style: Idler Pulley
    • UPC: 096361085718
    • Width: 17.5
    • Part Description: GMC Sierra 2500 HD Classic Drive Belt Idler Pulley
    More Info
    $10.53
  • Gates Drivealign Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic - 38009

    Gates® Drivealign Drive Belt Idler Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 38009
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: V-Ribbed Grooved
    • Material: Thermoplastic
    • Number of Grooves: 6
    • Number Of Pulleys: 1
    • Outside Diameter: 2.99"
    • Pulley 1 Flanged: Yes
    • UPC: 072053284256
    • Width: 25 mm
    • Part Description: GMC Sierra 2500 HD Classic Drivealign Drive Belt Idler Pulley
    More Info
    $15.36
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic - 89550

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 89550
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Polymer
    • Max Belt Width: 04 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 60
    • Pulley Width: 20
    • UPC: 036687845047
    • Part Description: GMC Sierra 2500 HD Classic No Slack Light Duty Idler Tensioner Pulley
    More Info
    $15.96
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic - 89009

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 89009
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: N
    • Groove Quantity: 6
    • Material: Polymer
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 76
    • Pulley Width: 28.7
    • UPC: 038244156979
    • Part Description: GMC Sierra 2500 HD Classic No Slack Light Duty Idler Tensioner Pulley
    More Info
    $13.50
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic - 89051

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC Sierra 2500 HD Classic

    PartNumber: 89051
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: N
    • Groove Quantity: 6
    • Material: Steel
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 76
    • Pulley Width: 30.1
    • UPC: 036687308733
    • Part Description: GMC Sierra 2500 HD Classic No Slack Light Duty Idler Tensioner Pulley
    More Info
    $15.70

Browse GMC Sierra 2500 HD Classic Idler Pulley by Years

2007