Automatic Belt Tensioner
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Automatic Belt Tensioner
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CARQUEST by Dayco Automatic Belt Tensioner

Part No. 89305 Warranty Details  
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CARQUEST by Dayco® Automatic Belt Tensioners are specifically built to outperform and outlast competitive OE parts. The heavy duty cast aluminum spring case resists cracking and fatigue. Each component is built to resist rust, endure the toughest of conditions while promoting quieter performance and longer life.

Product Features:
  • Manufactured with a specially coated patented flat wire spring to allow the internal tension to be concentric, thus providing a more even degree of constant tension
  • Contains a metallic locator pin built to withstand extreme drive demands and properly locate the tensioner for installation
  • The patented Deflected Arm Plate dampens arm movement, prolonging the life of the tensioner by limiting the amount of rotational movement
  • This tensioner is another CARQUEST by Dayco┬« product proudly made in the USA
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Belt Type:Serpentine
Mounting Type:Automatic
Pulley Diameter:76 in
Pulley Material:Steel
Pulley Type:Grooved
Pulley Width:30.1 in

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2 Questions | 2 Answers
Displaying questions 1-2
  • Q:

    how do you rotate the tensioner arm.
    Asked on 5/15/2014 by Yukon from United States

    1 answer



      Hi Yukon, glad to help! Here is the instructions to rotate the belt tensioner: Locate the tensioner pulley. If the pulley has a bolt in the center of it, you will need the appropriate socket. If it has a square hole in it, you will need the ratchet. Fit the socket over the bolt and insert the ratchet into the end of the socket, or slide the square end of the ratchet into the square hole. Push the ratchet toward the center of the engine. This rotates the pulley toward the engine and loosens tension on the belt. If you are not strong enough to rotate the pulley with only the ratchet, slide a metal pipe over the handle of the ratchet to give yourself more leverage.

      Answered on 5/15/2014 by Steve from AAP
  • Q:

    tensioner has no 3/8 rachet hole to loosen like other belt tensioners do. How do you loosen this tensioner
    Asked on 4/13/2013 by mr mo from cols oh

    1 answer



      With reference to your inquiry on the Dayco No Slack Automatic Belt Tensioner, Light Duty (Part No. 89305), to loosen this tensioner you can use a breakover bar, ratchet, or serpentine belt installation tool with the correct size socket for the pulley mounting bolt. Rotate the tensioner arm to release tension. Using the proper size socket, loosen the tensioner mounting bolt, and loosen the tensioner. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

      Answered on 4/14/2013 by Morgan from AAP
Displaying questions 1-2

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