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Replacement and OEM Parts for GMC Idler Pulley
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GMC Idler Pulley

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  • OEM (Genuine) GMC Serpentine Idler Pulley

    PartNumber: 12669569
    OEM GMC 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 Serpentine Idler Pulley
    More Info
    $52.78 MSRP: $99.60
    You Save: $46.82 (48%)
  • Dorman OE Solutions Vacuum Pump Pulley for GMC - 300-702

    Dorman® OE Solutions Vacuum Pump Pulley for GMC

    PartNumber: 300-702
    Product Specifications
    • Belt Type: Serpentine
    • Color: Black
    • Installation Hardware Included: No
    • Installation Instructions Included: No
    • Item Grade: Standard Replacement
    • Material: Steel
    • Mounting Hole Quantity: 1
    • Outside Diameter: 4.91
    • Package Contents: 1 Vacuum Pump Pulley
    • Pulley Type/Grooves: Smooth
    • UPC: 019495240006
    • Width: 0.98
    • Part Description: GMC OE Solutions Vacuum Pump Pulley
    More Info
    $69.41
  • Gates Drivealign Drive Belt Idler Pulley for GMC - 36110

    Gates® Drivealign Drive Belt Idler Pulley for GMC

    PartNumber: 36110
    Product Specifications
    • Bearing Bore Inside Diameter 1: 10
    • Contact Surface: Smooth/Backside
    • Contents: Pulley, Bolt, Dust Shield, Spacer
    • Material: Steel
    • Number of Grooves: 0
    • Number of Pulleys: 1
    • Outside Diameter: 70
    • Pulley 1 Flanged: No
    • UPC: 072053204797
    • Width: 25.5
    • Part Description: GMC Drivealign Drive Belt Idler Pulley
    More Info
    $36.27
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC - 89131

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC

    PartNumber: 89131
    Product Specifications
    • Bearing Inner Diameter 1: 10.3
    • Bearing Width: 26
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Steel
    • Max Belt Width: 06 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 70
    • Pulley Width: 25.5
    • UPC: 036687558213
    • Part Description: GMC No Slack Light Duty Idler Tensioner Pulley
    More Info
    $40.07
  • Four Seasons Drive Belt Idler Pulley for GMC - 45083

    Four Seasons® Drive Belt Idler Pulley for GMC

    PartNumber: 45083
    Product Specifications
    • Belt Type: Serpentine
    • Belt Width IN: 1.000
    • Belt Width MM: 25.4
    • Bore Dia. IN: .394
    • Color: Black
    • Description: Idler / Tensioner Pulley
    • Groove Quantity: Smooth
    • I.D. MM: 10.000
    • Inside Diameter: 0.390625
    • Material: Steel
    • Meets / Exceeds OEM?: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware?: Included
    • O.D. MM: 70.0
    • Outside Diameter: 2.750
    • Pulley Type: Idler Pulley
    • Pulley Width IN: 1.062
    • Pulley Width MM: Idler / Tensioner Pulley
    • Style: Idler / Tensioner Pulley
    • UPC: 096361085701
    • Width: 25.4
    • Part Description: GMC Drive Belt Idler Pulley
    More Info
    $28.95
  • OEM (Genuine) GMC Serpentine Tensioner

    PartNumber: 12580196
    OEM GMC 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 Serpentine Tensioner
    More Info
    $54.13 MSRP: $102.15
    You Save: $48.02 (48%)
  • Gates Drivealign Drive Belt Idler Pulley for GMC - 36442

    Gates® Drivealign Drive Belt Idler Pulley for GMC

    PartNumber: 36442
    Product Specifications
    • Bearing Bore Inside Diameter 1: 16
    • Contact Surface: Smooth/Backside
    • Contents: Pulley, Bolt, 2 Dust Shields, Retainer
    • Material: Steel
    • Number of Grooves: 0
    • Number of Pulleys: 1
    • Outside Diameter: 70
    • Pulley 1 Flanged: No
    • UPC: 072053073256
    • Width: 31
    • Part Description: GMC Drivealign Drive Belt Idler Pulley
    More Info
    $41.40
  • Dayco No Slack Lower Light Duty Idler Tensioner Pulley for GMC - 89059

    Dayco® No Slack Lower Light Duty Idler Tensioner Pulley for GMC

    PartNumber: 89059
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • 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: 28
    • UPC: 036687383129
    • Part Description: GMC No Slack Lower Light Duty Idler Tensioner Pulley
    More Info
    $24.32
  • Four Seasons Drive Belt Idler Pulley for GMC - 45025

    Four Seasons® Drive Belt Idler Pulley for GMC

    PartNumber: 45025
    Product Specifications
    • Belt Type: Back Idler
    • Belt Width IN: 1.000
    • Belt Width MM: 25.400
    • Bore Dia. IN: .67
    • Color: Black
    • Description: Idler / Tensioner Pulley
    • 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: 69.850
    • Outside Diameter: 2.750
    • Pulley Type: Idler Pulley
    • Pulley Width IN: 1.062
    • Pulley Width MM: Idler / Tensioner Pulley
    • Style: Idler / Tensioner Pulley
    • UPC: 096361450257
    • Width: 27
    • Part Description: GMC Drive Belt Idler Pulley
    More Info
    $23.91
  • OEM (Genuine) GMC Serpentine Tensioner

    PartNumber: 98094201
    OEM GMC 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 Serpentine Tensioner
    More Info
    $83.78 MSRP: $138.67
    You Save: $54.89 (40%)
  • Gates Drivealign Drive Belt Idler Pulley for GMC - 36177

    Gates® Drivealign Drive Belt Idler Pulley for GMC

    PartNumber: 36177
    Product Specifications
    • Bearing Bore Inside Diameter 1: 12
    • Contact Surface: V-Ribbed Grooved
    • Contents: Pulley
    • Material: Steel
    • Number of Grooves: 6
    • Number of Pulleys: 1
    • Outside Diameter: 85
    • Pulley 1 Flanged: Yes
    • UPC: 072053392852
    • Width: 29
    • Part Description: GMC Drivealign Drive Belt Idler Pulley
    More Info
    $38.67
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC - 89170

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC

    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 No Slack Light Duty Idler Tensioner Pulley
    More Info
    $33.22
  • Four Seasons Drive Belt Idler Pulley for GMC - 45982

    Four Seasons® Drive Belt Idler Pulley for GMC

    PartNumber: 45982
    Product Specifications
    • Belt Type: Serpentine
    • Belt Width IN: 0.625
    • Belt Width MM: 15.875
    • Bore Dia. IN: .67
    • Color: Black
    • Description: Idler / Tensioner Pulley
    • Groove Quantity: 4
    • I.D. MM: 17
    • Inside Diameter: 0.6875
    • Material: Plastic
    • Meets / Exceeds OEM?: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware?: Not Included
    • O.D. MM: 95.250
    • Outside Diameter: 3.750
    • Pulley Type: Idler Pulley
    • Pulley Width IN: .69
    • Pulley Width MM: Idler / Tensioner Pulley
    • Style: Idler / Tensioner Pulley
    • UPC: 096361459823
    • Width: 22.2
    • Part Description: GMC Drive Belt Idler Pulley
    More Info
    $23.06
  • OEM (Genuine) GMC Crankshaft

    PartNumber: 12685659
    OEM GMC Crankshaft - 12685659
    Product Specifications
    • Other Names: Crankshaft
    • Item Dimensions: 8.1 x 6.1 x 26.5 inches
    • Item Weight: 66.50 Pounds
    • Replaced by: 19431873
    • Part Description: GMC Crankshaft
    More Info
    $481.06 MSRP: $763.62
    You Save: $282.56 (38%)
  • Gates Drivealign Drive Belt Idler Pulley for GMC - 36193

    Gates® Drivealign Drive Belt Idler Pulley for GMC

    PartNumber: 36193
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17
    • Contact Surface: Smooth/Backside
    • Contents: Pulley, Dust Shield
    • Material: Thermoplastic
    • Number of Grooves: 0
    • Number of Pulleys: 1
    • Outside Diameter: 82
    • Pulley 1 Flanged: No
    • UPC: 072053393002
    • Width: 22
    • Part Description: GMC Drivealign Drive Belt Idler Pulley
    More Info
    $30.01
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC - 89036

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC

    PartNumber: 89036
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: V-belt
    • Flat: N
    • Material: Steel
    • Max Belt Width: 1/2 In.
    • Number of Bearings: 1
    • Pulley Outside Diameter: 81
    • Pulley Width: 16.4
    • UPC: 036687192752
    • Part Description: GMC No Slack Light Duty Idler Tensioner Pulley
    More Info
    $24.34
  • Four Seasons Idler Tensioner Pulley for GMC - 45935

    Four Seasons® Idler Tensioner Pulley for GMC

    PartNumber: 45935
    Product Specifications
    • Belt Type: Back Idler
    • Belt Width IN: 1.000
    • Belt Width MM: 28.575
    • Bore Dia. IN: .472
    • Color: Black
    • Description: Idler / Tensioner Pulley
    • 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 Idler Tensioner Pulley
    More Info
    $19.69
  • OEM (Genuine) GMC Serpentine Idler Pulley

    PartNumber: 98057284
    OEM GMC 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 Serpentine Idler Pulley
    More Info
    $28.48 MSRP: $53.75
    You Save: $25.27 (48%)
  • Gates Drivealign Drive Belt Idler Pulley for GMC - 36299

    Gates® Drivealign Drive Belt Idler Pulley for GMC

    PartNumber: 36299
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17
    • Contact Surface: Smooth/Backside
    • Contents: Pulley, Bolt, 17 mm Insert, Dust Shield, Retainer, Spacer
    • Material: Steel
    • Number of Grooves: 0
    • Number of Pulleys: 1
    • Outside Diameter: 90
    • Pulley 1 Flanged: No
    • UPC: 072053394078
    • Width: 31
    • Part Description: GMC Drivealign Drive Belt Idler Pulley
    More Info
    $25.67
  • Dayco No Slack Light Duty New Style Idler Tensioner Pulley for GMC - 89006

    Dayco® No Slack Light Duty New Style Idler Tensioner Pulley for GMC

    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 No Slack Light Duty New Style Idler Tensioner Pulley
    More Info
    $18.94
  • Four Seasons Drive Belt Idler Pulley for GMC - 45991

    Four Seasons® Drive Belt Idler Pulley for GMC

    PartNumber: 45991
    Product Specifications
    • Belt Type: Serpentine
    • Belt Width IN: 1.000
    • Belt Width MM: 25.400
    • Bore Dia. IN: .47
    • Color: Black
    • Description: Idler / Tensioner Pulley
    • Groove Quantity: 6
    • I.D. MM: 12.0
    • Inside Diameter: 0.46875
    • Material: Plastic
    • Meets / Exceeds OEM?: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware?: Not Included
    • O.D. MM: 131.763
    • Outside Diameter: 5.1875
    • Pulley Type: Idler Pulley
    • Pulley Width IN: 1
    • Pulley Width MM: 25.4
    • Style: Idler / Tensioner Pulley
    • UPC: 096361459915
    • Width: 25.4
    • Part Description: GMC Drive Belt Idler Pulley
    More Info
    $19.35
  • OEM (Genuine) GMC Serpentine Tensioner

    PartNumber: 24430296
    OEM GMC Serpentine Tensioner - 24430296
    Product Specifications
    • Item Dimensions: 8.3 x 3.1 x 3.2 inches
    • Item Weight: 1.70 Pounds
    • Fitment Type: Direct Replacement
    • Replaced by: 19431998
    • Part Description: GMC Serpentine Tensioner
    More Info
    $79.80 MSRP: $132.12
    You Save: $52.32 (40%)
  • Gates Drivealign Drive Belt Idler Pulley for GMC - 36169

    Gates® Drivealign Drive Belt Idler Pulley for GMC

    PartNumber: 36169
    Product Specifications
    • Bearing Bore Inside Diameter 1: 12
    • Contact Surface: Smooth/Backside
    • Contents: Pulley
    • Material: Steel
    • Number of Grooves: 0
    • Number of Pulleys: 1
    • Outside Diameter: 60
    • Pulley 1 Flanged: No
    • UPC: 072053392777
    • Width: 21.25
    • Part Description: GMC Drivealign Drive Belt Idler Pulley
    More Info
    $25.65
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC - 89146

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC

    PartNumber: 89146
    Product Specifications
    • Bearing Inner Diameter 1: 17
    • Bearing Width: 12
    • Belt Type: Serpentine
    • Flat: Y
    • Material: Polymer
    • Max Belt Width: 05 Rib
    • Number of Bearings: 1
    • Pulley Outside Diameter: 82
    • Pulley Width: 21.7
    • UPC: 036687639660
    • Part Description: GMC No Slack Light Duty Idler Tensioner Pulley
    More Info
    $23.88
  • Four Seasons Drive Belt Idler Pulley for GMC - 45047

    Four Seasons® Drive Belt Idler Pulley for GMC

    PartNumber: 45047
    Product Specifications
    • Belt Type: Serpentine
    • Belt Width IN: 1.125
    • Belt Width MM: 28.575
    • Bore Dia. IN: .67
    • Color: Black
    • Description: Idler / Tensioner Pulley
    • 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: 69.850
    • Outside Diameter: 2.750
    • Pulley Type: Back Idler
    • Pulley Width IN: 1.18
    • Pulley Width MM: Idler / Tensioner Pulley
    • Style: Idler / Tensioner Pulley
    • UPC: 096361450479
    • Width: 30
    • Part Description: GMC Drive Belt Idler Pulley
    More Info
    $19.28
  • OEM (Genuine) GMC Serpentine Idler Pulley

    PartNumber: 12590963
    OEM GMC Serpentine Idler Pulley - 12590963
    Product Specifications
    • Other Names: Idler Pulley, Serpentine Idler Pulley
    • Item Dimensions: 9.0 x 3.3 x 3.3 inches
    • Item Weight: 1.70 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 12587547
    • Part Description: GMC Serpentine Idler Pulley
    More Info
    $30.31 MSRP: $57.20
    You Save: $26.89 (48%)
  • Gates Drivealign Drive Belt Idler Pulley for GMC - 38034

    Gates® Drivealign Drive Belt Idler Pulley for GMC

    PartNumber: 38034
    Product Specifications
    • Bearing Bore Inside Diameter 1: 12
    • Contact Surface: V-Ribbed Grooved
    • Contents: Pulley, 12 mm Bushing
    • Material: Thermoplastic
    • Number of Grooves: 6
    • Number of Pulleys: 1
    • Outside Diameter: 127
    • Pulley 1 Flanged: Yes
    • UPC: 072053696769
    • Width: 29
    • Part Description: GMC Drivealign Drive Belt Idler Pulley
    More Info
    $25.99
  • Dayco No Slack Light Duty Idler Tensioner Pulley for GMC - 89542

    Dayco® No Slack Light Duty Idler Tensioner Pulley for GMC

    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 No Slack Light Duty Idler Tensioner Pulley
    More Info
    $21.65
  • Four Seasons Drive Belt Idler Pulley for GMC - 45957

    Four Seasons® Drive Belt Idler Pulley for GMC

    PartNumber: 45957
    Product Specifications
    • Belt Type: V-Belt
    • Belt Width IN: 0.500
    • Belt Width MM: 12.700
    • Bore Dia. IN: .69
    • Color: Black
    • Description: Idler / Tensioner Pulley
    • Groove Quantity: 1
    • I.D. MM: 17.463
    • Inside Diameter: 0.6875
    • Material: Steel
    • Meets / Exceeds OEM?: Yes
    • Mount Hole Qty: 1
    • Mounting Hardware?: Not Included
    • O.D. MM: 79.375
    • Outside Diameter: 3.125
    • Pulley Type: Idler Pulley
    • Pulley Width IN: .5
    • Pulley Width MM: 12.7
    • Style: Idler / Tensioner Pulley
    • UPC: 096361459571
    • Width: 12.7
    • Part Description: GMC Drive Belt Idler Pulley
    More Info
    $17.38
  • OEM (Genuine) GMC Serpentine Tensioner

    PartNumber: 12647765
    OEM GMC Serpentine Tensioner - 12647765
    Product Specifications
    • Other Names: Belt Tensioner, Serpentine Tensioner, Tensioner
    • Item Dimensions: 6.1 x 5.2 x 3.2 inches
    • Item Weight: 1.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC Serpentine Tensioner
    More Info
    $34.86 MSRP: $57.71
    You Save: $22.85 (40%)
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About GMC Idler Pulley

GMC is a leading automobile brand around the world. Nowadays, many GMC products and vehicles have been built globally. It provides affordable and reliable idler pulley parts for car buyers. The idler pulley parts are essential because they are in charge of routing the timing belts so that they remain in the correct position. The main function of the idler pulley parts is to provide tension and conduct the engine drive belt.
Whereas, the worn idler pulley parts need to be repaired or replaced for better GMC performance. The GMC idler pulley parts provide tension and help guide the belt to the proper routing. The idler pulley parts should be replaced every 50,000 to 100,000 miles. There are much better and smarter GMC products and devices. There are lots of top-quality and durable GMC products available online.