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GMC K2500 Idler Pulley
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$50.23 MSRP:$94.80You Save: $44.57 (48%)Product Specifications- Other Names: Idler Pulley, Serpentine Idler Pulley
- Item Dimensions: 7.1 x 4.1 x 4.1 inches
- Item Weight: 1.20 Pounds
- Fitment Type: Direct Replacement
- Replaces: 12557819
- Part Description: GMC K2500 Serpentine Idler Pulley
$80.03Product Specifications- Belt Type: Serpentine
- Color: Black
- Installation Hardware Included: No
- Installation Instructions Included: No
- Item Grade: Standard Replacement
- Material: Steel
- Mounting Hole Quantity: 1
- OE Part Number: 15589757
- Outside Diameter: 4.91
- Package Contents: 1 Vacuum Pump Pulley
- Pulley Type/Grooves: Smooth
- UPC: 019495240006
- Width: 0.98
- Part Description: GMC K2500 OE Solutions Vacuum Pump Pulley
$36.61Product 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 K2500 Drivealign Drive Belt Idler Pulley
$35.76Product 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 K2500 No Slack Light Duty Idler Tensioner Pulley
$24.73Product Specifications- Belt Type: Serpentine
- Belt Width IN: 0.625
- Belt Width MM: 15.875
- Bore Dia. IN: .67
- Color: Black
- 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 K2500 Drive Belt Idler Pulley
$27.82Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Thermoplastic
- Number of Grooves: 0
- Number Of Pulleys: 1
- Outside Diameter: 76 mm
- Pulley 1 Flanged: No
- UPC: 072053472349
- Width: 26 mm
- Part Description: GMC K2500 Drivealign Drive Belt Idler Pulley
$20.80Product 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 K2500 No Slack Light Duty New Style Idler Tensioner Pulley
$21.77Product 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 K2500 Idler Tensioner Pulley
$19.83Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Steel
- Number of Grooves: 0
- Number Of Pulleys: 1
- Outside Diameter: 90 mm
- Pulley 1 Flanged: No
- UPC: 072053415254
- Width: 30 mm
- Part Description: GMC K2500 Drivealign Drive Belt Idler Pulley
$17.51Product 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: 76
- Pulley Width: 31
- UPC: 038244156955
- Part Description: GMC K2500 No Slack Light Duty Idler Tensioner Pulley
$18.07Product Specifications- Belt Type: Serpentine
- Belt Width IN: 0.750
- Belt Width MM: 19.050
- 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: 88.900
- Outside Diameter: 3.500
- Pulley Type: Idler Pulley
- Pulley Width IN: 1
- Pulley Width MM: Idler / Tensioner Pulley
- Style: Idler / Tensioner Pulley
- UPC: 096361450660
- Width: 25.4
- Part Description: GMC K2500 Drive Belt Idler Pulley
$20.09Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: Smooth/Backside
- Material: Steel
- Number of Grooves: 0
- Number Of Pulleys: 1
- Outside Diameter: 2.99"
- Pulley 1 Flanged: No
- UPC: 072053415308
- Width: 30.5 mm
- Part Description: GMC K2500 Drivealign Drive Belt Idler Pulley
OEM (Genuine) GMC K2500 Idler Pulley
PartNumber: 12552361$2.93 MSRP:$5.51You Save: $2.58 (47%)Product Specifications- Other Names: Idler Pulley
- Item Dimensions: 4.4 x 4.4 x 1.6 inches
- Item Weight: 1.10 Pounds
- Fitment Type: Direct Replacement
- Part Description: GMC K2500 Idler Pulley
$16.34Product 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: 70
- Pulley Width: 28.3
- UPC: 036687135353
- Part Description: GMC K2500 No Slack Light Duty Idler Tensioner Pulley
$16.40Product Specifications- Belt Type: Serpentine
- Belt Width IN: 0.875
- Belt Width MM: 22.225
- Bore Dia. IN: .69
- Color: Black
- Groove Quantity: 6
- I.D. MM: 17.463
- Inside Diameter: 0.6875
- Material: Plastic
- Meets / Exceeds OEM: Yes
- Mount Hole Qty: 1
- Mounting Hardware: Not Included
- O.D. MM: 109.538
- Outside Diameter: 4.3125
- Pulley Type: Idler Pulley
- Pulley Width IN: 1
- Pulley Width MM: Idler / Tensioner Pulley
- Style: Idler / Tensioner Pulley
- UPC: 096361450103
- Width: 25.4
- Part Description: GMC K2500 Drive Belt Idler Pulley
$19.70Product Specifications- Bearing Bore Inside Diameter 1: 17 mm
- Contact Surface: V-Ribbed
- Material: Thermoplastic
- Number of Grooves: 6
- Number Of Pulleys: 1
- Outside Diameter: 109 mm
- Pulley 1 Flanged: Yes
- UPC: 072053542004
- Width: 26.3 mm
- Part Description: GMC K2500 Drivealign Drive Belt Idler Pulley
$14.52Product 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 K2500 No Slack Light Duty Idler Tensioner Pulley
$17.37Product Specifications- Belt Type: Serpentine
- Belt Width IN: 1.000
- Belt Width MM: 25.400
- Bore Dia. IN: .47
- Color: Black
- Groove Quantity: Smooth
- I.D. MM: 12.0
- Inside Diameter: 0.46875
- 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: 096361459908
- Width: 25.4
- Part Description: GMC K2500 Drive Belt Idler Pulley
$18.48Product 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: 072053525748
- Width: 30.5 mm
- Part Description: GMC K2500 Drivealign Drive Belt Idler Pulley
$66.46 MSRP:$125.42You Save: $58.96 (48%)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 K2500 Serpentine Idler Pulley
$17.63Product 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: 3.54"
- Pulley 1 Flanged: Yes
- UPC: 072053557510
- Width: 26.3 mm
- Part Description: GMC K2500 Drivealign Drive Belt Idler Pulley
$54.91 MSRP:$103.62You Save: $48.71 (48%)Product Specifications- Other Names: Idler Pulley, Serpentine Idler Pulley
- Item Dimensions: 3.5 x 3.1 x 3.1 inches
- Item Weight: 0.70 Pounds
- Fitment Type: Direct Replacement
- Replaces: 10239930
- Part Description: GMC K2500 Serpentine Idler Pulley
$14.77Product 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 K2500 Drive Belt Idler Pulley
$16.58Product 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: 2.76"
- Pulley 1 Flanged: Yes
- UPC: 072053284232
- Width: 25 mm
- Part Description: GMC K2500 Drivealign Grooved Drive Belt Idler Pulley
$15.02Product Specifications- Belt Type: Back Idler
- Belt Width IN: 1.000
- Belt Width MM: 25.400
- Bore Dia. IN: .67
- 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: 76.200
- Outside Diameter: 3.000
- Pulley Type: Idler Pulley
- Pulley Width IN: 1.18
- Pulley Width MM: Idler / Tensioner Pulley
- Style: Idler / Tensioner Pulley
- UPC: 096361459793
- Width: 30
- Part Description: GMC K2500 Back Drive Belt Idler Pulley
$16.47Product 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 K2500 Drivealign Drive Belt Idler Pulley
$13.64Product 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 K2500 Drive Belt Idler Pulley
$14.74Product Specifications- Belt Type: Serpentine
- Belt Width IN: 1.000
- Belt Width MM: 25.400
- Bore Dia. IN: .67
- Color: Black
- Groove Quantity: Smooth
- 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: 95.250
- Outside Diameter: 3.750
- Pulley Type: Back Idler
- Pulley Width IN: 1
- Pulley Width MM: 25.4
- Style: Idler / Tensioner Pulley
- UPC: 096361459700
- Width: 25.4
- Part Description: GMC K2500 Drive Belt Idler Pulley
$14.91Product Specifications- Belt Type: Serpentine
- Belt Width IN: 0.875
- Belt Width MM: 22.225
- 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: 69.850
- Outside Diameter: 2.750
- Pulley Type: Idler Pulley
- Pulley Width IN: 1.11
- Pulley Width MM: Idler / Tensioner Pulley
- Style: Idler / Tensioner Pulley
- UPC: 096361459960
- Width: 28.6
- Part Description: GMC K2500 Drive Belt Idler Pulley
$22.75Product 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: 90
- Pulley Width: 28.2
- UPC: 038244528783
- Part Description: GMC K2500 No Slack Light Duty Idler Tensioner Pulley
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Next >About GMC K2500 Idler Pulley
The GMC K2500's look was somewhat altered in 1990. The GMC K2500 moves with the ease of a premium vehicle. Classic parts like the idler pulley contribute to the success of the brand. There can be one or more idler pulley parts along the timing chain and each can come in different sizes.
The GMC K2500 has many devices. But problems arise after the idler pulley has been used for a long period. An idler pulley provides tension and helps guide the belt to the proper routing. It should be replaced every 50,000 to 100,000 miles. Welcome to a large selection of related GMC K2500 parts available online. It is easy to buy needed car parts at nearly wholesale prices.