Bus A/C Belts & Pulleys

Compressor drive belts, idler pulleys, tensioners, and pulley assemblies for bus air conditioning compressors. Poly-V and V-belts in the lengths used on MCC and Trans/Air installations across school bus and commercial bus chassis. Check the belt number printed on your current belt, or call the parts line at 518-762-6267 with your bus and compressor model.
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  • Arm, Idler, 1.25" Throw x .75" High 711028

    Arm, Idler, 1.25" Throw x .75" High 711028

    Arm, Idler, 1.25" Throw x .75" High 711028
    $8.99
  • Arm, Idler, 1.25" Throw x 1.375" High 711012

    Arm, Idler, 1.25" Throw x 1.375" High 711012

    Arm, Idler, 1.25" Throw x 1.375" High 711012
    $9.99
  • Arm, Idler, 1.25" Throw x 1.62" High 711030

    Arm, Idler, 1.25" Throw x 1.62" High 711030

    Arm, Idler, 1.25" Throw x 1.62" High 711030
    $70.99
  • Arm, Idler, 1.25" Throw x 1.75" High 711031

    Arm, Idler, 1.25" Throw x 1.75" High 711031

    Arm, Idler, 1.25" Throw x 1.75" High 711031
    $131.99
  • Arm, Idler, 1.25" Throw x 2.125 High 711010

    Arm, Idler, 1.25" Throw x 2.125 High 711010

    Arm, Idler, 1.25" Throw x 2.125 High 711010
    $120.99
  • Arm, Idler, 2.75" Throw x 1.1875 711015

    Arm, Idler, 2.75" Throw x 1.1875 711015

    Arm, Idler, 2.75" Throw x 1.1875 711015
    $131.99
  • Arm, Idler, Long 1-1/4 x 2 711004

    Arm, Idler, Long 1-1/4 x 2 711004

    Arm, Idler, Long 1-1/4 x 2 711004
    $80.99
  • Arm, Idler, Short 1-1/4" x 1 1/8" 711003

    Arm, Idler, Short 1-1/4" x 1 1/8" 711003

    Arm, Idler, Short 1-1/4" x 1 1/8" 711003
    $77.99
  • Bushing Idler Pulley 1/2 401875 Air Conditioning

    Bushing, Idler Pulley, 1/2" 401875

    Bushing, Idler Pulley, 1/2" 401875
    $33.99
  • Bushing Idler Pulley 7/16 Bolt Thru 711023 4012384 Air Conditioning

    Bushing, Idler Pulley, 7/16 Bolt Thru 711023 4012384

    Bushing, Idler Pulley, 7/16 Bolt Thru 711023 4012384
    $66.99
  • Bushing Idler Pulley 8Mm Bolt Thru 711016 4012270 Air Conditioning

    Bushing, Idler Pulley, 8MM Bolt Thru 711016 4012270

    Bushing, Idler Pulley, 8MM Bolt Thru 711016 4012270
    $66.99
  • Bushing Idler Pulley M10 Bolt 4012050 Air Conditioning

    Bushing, Idler Pulley, M10 Bolt 4012050

    Bushing, Idler Pulley, M10 Bolt 4012050
    $30.99
  • Bushing Idler Pulley Single Bearing 4012529 Air Conditioning

    Bushing, Idler Pulley, Single Bearing 4012529

    Bushing, Idler Pulley, Single Bearing 4012529
    $36.99
  • Bushing Idler 1/2 Lng 7/16 Bore 714053 Air Conditioning

    Bushing, Idler, 1/2" Lng, 7/16" Bore 714053

    Bushing, Idler, 1/2" Lng, 7/16" Bore 714053
    $20.99
  • Idler Arm 1.25 Throw X High 711013 Air Conditioning

    Idler Arm, 1.25" Throw x 1.25 High 711013

    Idler Arm, 1.25" Throw x 1.25 High 711013
    $9.99
  • Idler Arm 1.25 Throw X 1.875 High 711018 Air Conditioning

    Idler Arm, 1.25" Throw x 1.875 High 711018

    Idler Arm, 1.25" Throw x 1.875 High 711018
    $109.99
  • Idler Kit 3.64 Dual 1/2 Grv Blk Pulley 711001 Air Conditioning

    Idler Kit, 3.64" Dual 1/2" Grv Blk Pulley 711001

    Idler Kit, 3.64" Dual 1/2" Grv Blk Pulley 711001
    $120.99
  • Idler Kit Cast Iron Pulley 1 Grv (1/2 -3.64 Od) W/shoulder Bolt And Spacer 711005 Air Conditioning

    Idler Kit, Cast Iron Pulley, 1 Grv (1/2" -3.64 OD), w/Shoulder Bolt and Spacer 711005

    Idler Kit, Cast Iron Pulley, 1 Grv (1/2" -3.64 OD), w/Shoulder Bolt and Spacer 711005
    $998.99
  • Idler Pulley 6K-Groove 76Mm Pitch 711048 Air Conditioning

    Idler Pulley, 6K-Groove, 76MM Pitch 711048

    Idler Pulley, 6K-Groove, 76MM Pitch 711048
    $134.99
  • Idler Pulley 8 K-Grv 76Mm (2.99) Pitch 711044 Air Conditioning

    Idler Pulley, 8 K-Grv, 76MM (2.99") Pitch 711044

    Idler Pulley, 8 K-Grv, 76MM (2.99") Pitch 711044
    $200.99
  • Idler Pulley Backside 90Mm Primary Belt 711045 Air Conditioning

    Idler Pulley, Backside, 90MM Primary Belt 711045

    Idler Pulley, Backside, 90MM Primary Belt 711045
    $162.99
  • Idler, Backside, Dia 76MM 711041 2025034284

    Idler, Backside, Dia 76MM 711041 2025034284

    Idler, Backside, Dia 76MM 711041 2025034284
    $75.99
  • Idler Helical Spring Tensioner 711046 Air Conditioning

    Idler, Helical Spring Tensioner 711046

    Idler, Helical Spring Tensioner 711046
    $568.99
  • Idler Helical Spring Cat 3126 W/backside Pulley 711042 Air Conditioning

    Idler, Helical Spring, CAT 3126, w/Backside Pulley 711042

    Idler, Helical Spring, CAT 3126, w/Backside Pulley 711042
    $340.99