HomeBelts and Cooling > Accessory Drive Belt System ComponentsDayco 5060905K2 Serpentine Belt Drive Component Kit - Main Drive
Part #: 5060905K2

Dayco 5060905K2 Serpentine Belt Drive Component Kit - Main Drive

Main Drive
17 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, GMC, Isuzu, and Oldsmobile, Ascender, Bravada, Envoy XL, Envoy XUV, and Trailblazer EXT
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Dayco 5060905K2 Serpentine Belt Drive Kit

The Dayco 5060905K2 is a serpentine belt drive component kit for the main drive system. It includes the serpentine belt, pulley, and tensioner needed for listed GM and Isuzu applications, making it a direct service solution for worn accessory drive components.

  • Includes serpentine belt, pulley, and tensioner
  • Fits main drive applications
  • Dayco part number 5060905K2
  • Compatible with select Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, Isuzu Ascender, and Oldsmobile Bravada models
  • Fits 2002-2006 Chevrolet Trailblazer EXT, Main Drive, includes serpentine belt, pulley and tensioner
  • Fits 2002-2006 GMC Envoy XL, Main Drive, includes serpentine belt, pulley and tensioner
  • Fits 2003-2006 Isuzu Ascender, Main Drive, 7 Passenger; includes serpentine belt, pulley and tensioner
  • Fits 2004-2005 GMC Envoy XUV, Main Drive, includes serpentine belt, pulley and tensioner
  • Fits 2004 Oldsmobile Bravada, Main Drive, includes serpentine belt, pulley and tensioner; w/130 Amp Alt.

This kit is used to restore proper accessory drive operation when the belt, pulley, or tensioner shows wear, noise, or loss of tension. It is a practical service part for Chevrolet Trailblazer EXT and GMC Envoy XL owners, as well as select Isuzu Ascender and Oldsmobile Bravada applications.

  • Squealing or chirping from the accessory drive belt system
  • Belt cracking, glazing, or visible wear
  • Weak belt tension or tensioner movement issues
  • Pulley noise or rough operation
  • Accessory drive service on listed Chevrolet Trailblazer EXT, GMC Envoy XL, GMC Envoy XUV, Isuzu Ascender, and Oldsmobile Bravada vehicles

Installation Notes

Verify engine and accessory drive configuration before installation. Confirm the vehicle is listed for the exact year, make, model, and notes shown, including the 2004 Oldsmobile Bravada application with 130 amp alternator and the 7-passenger Isuzu Ascender listing. Inspect related drive components during service and replace worn parts as needed.

Quality Assurance

Dayco is a recognized name in accessory drive components, and this kit is cataloged for the specified main drive applications. Part number 5060905K2 should be matched to the vehicle fitment details before installation.

This part fits 17 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006ChevroletTrailblazer EXT4.2LL6Main DriveIncludes: Serpentine Belt, Pulley and Tensioner
2006GMCEnvoy XL4.2LL6Main DriveIncludes: Serpentine Belt, Pulley and Tensioner
2006IsuzuAscender4.2LL6Main Drive7 Passenger; Includes: Serpentine Belt, Pulley and Tensioner
2005ChevroletTrailblazer EXT4.2LL6Main DriveIncludes: Serpentine Belt, Pulley and Tensioner
2005GMCEnvoy XL4.2LL6Main DriveIncludes: Serpentine Belt, Pulley and Tensioner
2005GMCEnvoy XUV4.2LL6Main DriveIncludes: Serpentine Belt, Pulley and Tensioner
2005IsuzuAscender4.2LL6Main Drive7 Passenger; Includes: Serpentine Belt, Pulley and Tensioner
2004ChevroletTrailblazer EXT4.2LL6Main DriveIncludes: Serpentine Belt, Pulley and Tensioner
2004GMCEnvoy XL4.2LL6Main DriveIncludes: Serpentine Belt, Pulley and Tensioner
2004GMCEnvoy XUV4.2LL6Main DriveIncludes: Serpentine Belt, Pulley and Tensioner
2004IsuzuAscender4.2LL6Main Drive7 Passenger; Includes: Serpentine Belt, Pulley and Tensioner
2004OldsmobileBravadaMain DriveIncludes: Serpentine Belt, Pulley and Tensioner; w/130 Amp Alt.
2003ChevroletTrailblazer EXT4.2LL6Main DriveIncludes: Serpentine Belt, Pulley and Tensioner
2003GMCEnvoy XL4.2LL6Main DriveIncludes: Serpentine Belt, Pulley and Tensioner
2003IsuzuAscender4.2LL6Main Drive7 Passenger; Includes: Serpentine Belt, Pulley and Tensioner
2002ChevroletTrailblazer EXTMain DriveIncludes: Serpentine Belt, Pulley and Tensioner
2002GMCEnvoy XLMain DriveIncludes: Serpentine Belt, Pulley and Tensioner

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.