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  • $66.84 MSRP: $110.64
    You Save: $43.80 (40%)
    Product Specifications
    • Other Names: Belt Tensioner, Serpentine Tensioner, Tensioner
    • Item Dimensions: 7.1 x 4.6 x 4.3 inches
    • Item Weight: 1.60 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 10239670, 12456152
    • Part Description: GMC K2500 Serpentine Tensioner
    More Info
  • Gates Drivealign OE Exact Automatic Belt Tensioner for GMC K2500 - 38118
    $45.39
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: Smooth/Backside
    • Material: Steel
    • Number Of Pulleys: 1
    • OE Comparison Rating: OE Exact
    • Outside Diameter: 76 mm
    • Pulley 1 Flanged: No
    • UPC: 072053442489
    • Width: 30.5 mm
    • Part Description: GMC K2500 Drivealign OE Exact Automatic Belt Tensioner
    More Info
  • Dayco No Slack Automatic Belt Tensioner Assembly for GMC K2500 - 89213
    $52.22
    Product Specifications
    • Belt Type: Serpentine
    • Direction: Clock Wise
    • Number Of Pulleys: 1
    • Pulley 1 Diameter: 76
    • Pulley 1 Flat: Y
    • Pulley 1 Width: 26
    • UPC: 038244912193
    • Part Description: GMC K2500 No Slack Automatic Belt Tensioner Assembly
    More Info
  • Gates Drivealign OE Exact Automatic Belt Tensioner for GMC K2500 - 38108
    $52.66
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: Smooth/Backside
    • Material: Steel
    • Number Of Pulleys: 1
    • OE Comparison Rating: OE Exact
    • Outside Diameter: 3.54"
    • Pulley 1 Flanged: No
    • UPC: 072053297706
    • Width: 30.5 mm
    • Part Description: GMC K2500 Drivealign OE Exact Automatic Belt Tensioner
    More Info
  • Dayco No Slack Automatic Belt Tensioner Assembly for GMC K2500 - 89202
    $50.73
    Product Specifications
    • Belt Type: Serpentine
    • Direction: Counter Clock Wise
    • Number Of Pulleys: 1
    • Pulley 1 Diameter: 90
    • Pulley 1 Flat: Y
    • Pulley 1 Width: 27
    • UPC: 038244912063
    • Part Description: GMC K2500 No Slack Automatic Belt Tensioner Assembly
    More Info
  • Gates Drivealign OE Improved Automatic Belt Tensioner for GMC K2500 - 38248
    $56.57
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: V-Ribbed Grooved
    • Material: Thermoplastic
    • Number of Grooves: 6
    • Number Of Pulleys: 1
    • OE Comparison Rating: OE Improved
    • Outside Diameter: 90 mm
    • Pulley 1 Flanged: No
    • UPC: 770075250029
    • Width: 26.3 mm
    • Part Description: GMC K2500 Drivealign OE Improved Automatic Belt Tensioner
    More Info
  • Dayco No Slack Automatic Belt Tensioner Assembly for GMC K2500 - 89201
    $43.49
    Product Specifications
    • Belt Type: Serpentine
    • Direction: Clock Wise
    • Number Of Pulleys: 1
    • Pulley 1 Diameter: 90
    • Pulley 1 Flat: Y
    • Pulley 1 Width: 27
    • UPC: 038244910052
    • Part Description: GMC K2500 No Slack Automatic Belt Tensioner Assembly
    More Info
  • Gates Drivealign Automatic Belt Tensioner for GMC K2500 - 38143
    $52.10
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: Smooth/Backside
    • Material: Thermoplastic
    • Number Of Pulleys: 1
    • OE Comparison Rating: OE Performance
    • Outside Diameter: 3.54"
    • Pulley 1 Flanged: No
    • UPC: 072053525823
    • Width: 36 mm
    • Part Description: GMC K2500 Drivealign Automatic Belt Tensioner
    More Info
  • Dayco No Slack Automatic Belt Tensioner Assembly for GMC K2500 - 89228
    $39.13
    Product Specifications
    • Belt Type: Serpentine
    • Direction: Clock Wise
    • Number Of Pulleys: 1
    • Pulley 1 Diameter: 90
    • Pulley 1 Flat: N
    • Pulley 1 Number Of Grooves: 4
    • Pulley 1 Width: 23.5
    • UPC: 036687000057
    • Part Description: GMC K2500 No Slack Automatic Belt Tensioner Assembly
    More Info
  • Gates Drivealign OE Exact Automatic Belt Tensioner for GMC K2500 - 38267
    $51.95
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: Smooth/Backside
    • Material: Steel
    • Number Of Pulleys: 1
    • OE Comparison Rating: OE Exact
    • Outside Diameter: 3.54"
    • Pulley 1 Flanged: No
    • UPC: 072053509229
    • Width: 37 mm
    • Part Description: GMC K2500 Drivealign OE Exact Automatic Belt Tensioner
    More Info
  • Dayco No Slack Automatic Belt Tensioner Assembly for GMC K2500 - 89231
    $34.35
    Product Specifications
    • Belt Type: Serpentine
    • Direction: Clock Wise
    • Number Of Pulleys: 1
    • Pulley 1 Diameter: 70
    • Pulley 1 Flat: N
    • Pulley 1 Number Of Grooves: 6
    • Pulley 1 Width: 28.3
    • UPC: 036687119537
    • Part Description: GMC K2500 No Slack Automatic Belt Tensioner Assembly
    More Info
  • Gates Drivealign Automatic Belt Tensioner for GMC K2500 - 38135
    $44.35
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: V-Ribbed Grooved
    • Material: Thermoplastic
    • Number of Grooves: 4
    • Number Of Pulleys: 1
    • OE Comparison Rating: OE Performance
    • Outside Diameter: 90 mm
    • UPC: 072053487725
    • Width: 22 mm
    • Part Description: GMC K2500 Drivealign Automatic Belt Tensioner
    More Info
  • Gates Drivealign OE Improved Automatic Belt Tensioner for GMC K2500 - 38103
    $40.99
    Product Specifications
    • Bearing Bore Inside Diameter 1: 17 mm
    • Contact Surface: V-Ribbed Grooved
    • Material: Thermoplastic
    • Number of Grooves: 6
    • Number Of Pulleys: 1
    • OE Comparison Rating: OE Improved
    • Outside Diameter: 70 mm
    • UPC: 072053297607
    • Width: 25 mm
    • Part Description: GMC K2500 Drivealign OE Improved Automatic Belt Tensioner
    More Info
  • Product Specifications
    • Other Names: Belt Tensioner, Serpentine Tensioner
    • Item Dimensions: 5.1 x 5.2 x 11.2 inches
    • Item Weight: 2.20 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC K2500 Serpentine Tensioner
    More Info
  • Product Specifications
    • Item Dimensions: 11.5 x 5.0 x 4.8 inches
    • Item Weight: 2.90 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 10183939, 12558520
    • Part Description: GMC K2500 Tensioner, Drive Belt
    More Info
  • Product Specifications
    • Other Names: Belt Tensioner
    • Item Dimensions: 5.1 x 5.2 x 11.6 inches
    • Item Weight: 2.20 Pounds
    • Fitment Type: Direct Replacement
    • Replaces: 10187655
    • Part Description: GMC K2500 Tensioner Asm-Drive Belt
    More Info
  • Product Specifications
    • Other Names: Belt Tensioner, Fan Belt, Serpentine Tensioner
    • Item Dimensions: 8.2 x 3.6 x 2.9 inches
    • Item Weight: 2.60 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC K2500 Tensioner, Drive Belt
    More Info
  • Product Specifications
    • Other Names: Belt Tensioner, Serpentine Tensioner, Tensioner
    • Item Dimensions: 5.9 x 5.5 x 5.5 inches
    • Item Weight: 1.90 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC K2500 Tensioner, Drive Belt
    More Info
  • Product Specifications
    • Other Names: Belt Tensioner, Serpentine Tensioner, Tensioner
    • Item Dimensions: 7.9 x 3.7 x 2.7 inches
    • Item Weight: 2.80 Pounds
    • Fitment Type: Direct Replacement
    • Part Description: GMC K2500 Tensioner Asm-Drive Belt
    More Info

About GMC K2500 Belt Tensioner

The GMC K2500's look was somewhat altered in 1990. The GMC K2500 is well characterized by its swiftness. Classic car parts like the belt tensioner contribute to the success of the brand. The belt tensioner is a pulley that is mounted on a spring mechanism or a pivot mount that you can adjust. A faulty tensioner part can cause the vehicle to have grinding noises, cracks, and worn-out drive belt edges.
Whereas, the worn belt tensioner needs to be repaired or replaced for better GMC K2500 performance. The belt tensioner ensures the belt has the correct tension throughout the belt routing. It should be checked every 50,000-100,000 miles. We are here for you 24/7. There are lots of top-quality and durable GMC K2500 parts available online.