Dayco Products Inc 89234 Accessory Drive Belt Tensioner Assembly OE Replacement

By Dayco

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Dayco Products Inc 89234 Accessory Drive Belt Tensioner Assembly OE Replacement

Serpentine belt drives consist of a single belt that powers most, if not all, of the engine’s accessories. Designed to maintain constant tension on serpentine belt drives, the Dayco Automatic Belt Tensioner features the original flat spring design engineered to provide less operating range variations in tension. This innovative design reduces the risk of premature accessory bearing failure due to high tension when a new belt is installed and lessens the risk of belt noise and slippage, or poor accessory performance caused by low tension after the belt begins to stretch and wear. A PTFE strip wound within the spring resists abrasion and the flat spring is coated to resist rust.


  • Steel Locator Pin (Where The Application Demands)
  • Heavy Duty Cast Aluminum Spring Case That Resists Cracking And Fatigue
  • Heavy Duty Cast Aluminum Arm Offers Additional Strength And Less Distortion
  • Steel Pivot Tube (Where The Application Demands) Provides Additional Strength For Critical Torque Requirements
  • Thermoplastic Rubber Spring Slot Plug (Where Applicable) Helps Keep Out Harmful Contaminants
  • Lubricated Nylon Pivot Tube Bushing And Spring Bushing For Quieter Performance
  • Rubber "O" Ring Which Seals Against Dust And Grime (Where Applicable)
  • Zinc-Coated Mounting Bolt That Resists Rust
  • Limited 90 Day Warranty

  • Specifications:

    Belt Type: Serpentine
    Maximum Belt Width: OEM
    Number Of Pulleys: 1
    Pulley Groove Count: No Groove
    Pulley Diameter: OEM
    Pulley Width: OEM
    Pulley Material: Glass Filled Polymer
    Tensioner Rotation: Clockwise

    This product is designed to fit the following vehicles:

  • 1988 - 1998 Buick Skylark
  • 1990 - 1994 Chevrolet Beretta
  • 1995 - 1998 Chevrolet Cavalier
  • 1997 - 1997 Chevrolet Malibu
  • 1992 - 1998 Oldsmobile Achieva
  • 1999 - 1999 Oldsmobile Alero
  • 1987 - 1987 Oldsmobile Calais
  • 1988 - 1991 Oldsmobile Cutlass Calais
  • 1990 - 1991 Oldsmobile Cutlass Supreme
  • 1988 - 1999 Pontiac Grand Am
  • 1990 - 1991 Pontiac Grand Prix
  • 1995 - 1998 Pontiac Sunfire
  • Specifications+

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