Belt Tensioner
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Belt Tensioner
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Dayco No Slack Belt Tensioner

Part No. 89258 Warranty  

See if this part fits a specific vehicle.

Check Vehicle Fit

Dayco No Slack Automatic Belt Tensioners are specifically built to outperform and outlast competitive OE parts. Each component is built to endure the toughest of conditions while promoting quieter performance and longer life.

Product Features:
  • The heavy duty cast aluminum spring case resists cracking and fatigue
  • Includes installation instructions
  • Made in the USA
  • Rust resistant construction
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Belt Type:Serpentine
Mounting Type:Automatic
Pulley Diameter:60 in
Pulley Material:Polymer
Pulley Type:Flat
Pulley Width:20 in

REVIEW SNAPSHOT®

by PowerReviews
Dayco No SlackBelt Tensioner
 
4.1

(based on 20 reviews)

Ratings Distribution

  • 5 Stars

     

    (11)

  • 4 Stars

     

    (5)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (2)

84%

of respondents would recommend this to a friend.

Pros

  • Easy to install (14)
  • Durable (7)
  • Lightweight (5)

Cons

    Best Uses

    • Replacement (11)
    • Everyday driving (9)
      • Reviewer Profile:
      • Mechanic (7), Auto enthusiast (4), Casual driver (4), Truck enthusiast (4)

    Most Liked Positive Review

     

    Does It's Job

    Bought to replace seized tensioner in an '02 Tahoe with 240k + miles. Pulley is made of plastic but seems strong enough. Replacement was a bit of a pain but not to bad,...Read complete review

    Bought to replace seized tensioner in an '02 Tahoe with 240k + miles. Pulley is made of plastic but seems strong enough. Replacement was a bit of a pain but not to bad, would have been much easier with the car on a lift, as you need to access it from the bottom. Had to take off a plastic rock shield (5 bolts) and loosen the serpentine belt (meaning 10 minutes of wrestling with it to get it back routed and on properly), but other than that it wasn't bad.

    VS

    Most Liked Negative Review

     

    Shattered!

    Bought this and put it on our escalade and 10 days later its fractured in multiple spots and now I have no AC, total waste of money!

    Bought this and put it on our escalade and 10 days later its fractured in multiple spots and now I have no AC, total waste of money!

    Reviewed by 20 customers

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    Displaying reviews 1-10

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    5.0

    Worked great, easy installation!

    By Mosby1863

    from Colonial Heights, VA

    About Me Mechanic

    Verified Buyer

    Pros

    • Easy To Install

    Cons

      Best Uses

      • Everyday Driving

      Comments about Dayco No Slack Belt Tensioner:

      Great Product, in stock, AC working again.

      Comment on this review(earn points)

       
      5.0

      EASY TO INSTALL

      By PROF.

      from Bflo NY.

      About Me Casual Driver

      Verified Buyer
      Level 1

      Pros

      • Durable
      • Easy To Install
      • Lightweight

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Dayco No Slack Belt Tensioner:

        Needed it to repair A/C

        Comment on this review(earn points)

        (1 of 1 customers found this review helpful)

         
        1.0

        Shattered!

        By Mindshaker911

        from Dothan, AL

        Level 1

        Pros

        • None

        Cons

        • Broke
        • No Improvement In Performance

        Best Uses

          Comments about Dayco No Slack Belt Tensioner:

          Bought this and put it on our escalade and 10 days later its fractured in multiple spots and now I have no AC, total waste of money!

          Comment on this review(earn points)

           
          5.0

          Works as it should.

          By Bob

          from ky

          About Me DIY guy

          Verified Buyer
          Level 1

          Pros

          • Correct fit

          Cons

          • none

          Best Uses

          • Replacement

          Comments about Dayco No Slack Belt Tensioner:

          works

          Comment on this review(earn points)

           
          5.0

          Does It's Job

          By Luke

          from Michigan

          Pros

          • Cheap
          • Durable
          • Easy To Install

          Cons

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about Dayco No Slack Belt Tensioner:

            Bought to replace seized tensioner in an '02 Tahoe with 240k + miles. Pulley is made of plastic but seems strong enough. Replacement was a bit of a pain but not to bad, would have been much easier with the car on a lift, as you need to access it from the bottom. Had to take off a plastic rock shield (5 bolts) and loosen the serpentine belt (meaning 10 minutes of wrestling with it to get it back routed and on properly), but other than that it wasn't bad.

            Comment on this review(earn points)

             
            5.0

            did the job right the first time

            By jim

            from River Rouge MI

            About Me Auto Enthusiast, Casual Driver, Mechanic, Truck Enthusiast

            Verified Buyer
            Level 3

            Pros

            • Durable
            • Easy To Install
            • Improves Engine Efficiency
            • Increases Power
            • Lightweight

            Cons

              Best Uses

              • Everyday Driving
              • Performance Driving
              • Replacement
              • Restoration

              Comments about Dayco No Slack Belt Tensioner:

              meets oem standards ,great quality , good price , got rid of the noise

              Comment on this review(earn points)

               
              3.0

              ok

              By pw

              from erie,pa

              About Me Casual Driver

              Verified Buyer
              Level 1

              Pros

              • Lightweight

              Cons

              • Difficult To Install
              • No Improvement In Performance

              Best Uses

              • Everyday Driving

              Comments about Dayco No Slack Belt Tensioner:

              ok

              Comment on this review(earn points)

               
              4.0

              works as it should

              By Danny

              from Columbus, GA

              About Me Auto Enthusiast

              Verified Buyer
              Level 1

              Pros

              • Easy To Install

              Cons

                Best Uses

                • Replacement

                Comments about Dayco No Slack Belt Tensioner:

                Replaced a squeaky/wore out tensioner with this unit. So far so good. The pulley is plastic vs. the original metal one but maybe it will hold up just as well - the bearing usually goes before the pulley anyway.

                Comment on this review(earn points)

                 
                5.0

                NICE PRICE WORKS GREAT

                By SIDEWAYS AUTO

                from CT

                About Me Auto Enthusiast, Casual Driver, Mechanic

                Verified Buyer
                3 or more reviews submitted

                Pros

                • Durable
                • Easy To Install
                • Lightweight

                Cons

                  Best Uses

                  • Replacement
                  • Restoration

                  Comments about Dayco No Slack Belt Tensioner:

                  GET RID OF THAT NOISY A/C BELT AND PUT THIS TENSIONER ON, WITH NEW BELT OF COURSE. CHEAP AND EASY TO INSTALL

                  Comment on this review(earn points)

                   
                  4.0

                  Easy install

                  By Bruce T

                  from Quincy MA

                  Verified Buyer
                  3 or more reviews submitted

                  Pros

                  • Easy To Install

                  Cons

                    Best Uses

                      Comments about Dayco No Slack Belt Tensioner:

                      Easy install though the wheel is plastic not as durable as original.

                      Comment on this review(earn points)

                      Displaying reviews 1-10

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                      Do you have questions about this product?(earn points for answers!)

                       

                      Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.

                      4 Questions | 4 Answers
                      Displaying questions 1-4
                      • Q:

                        Does this come with the pulley?
                        Asked on 6/27/2014 by Daria from United States

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Hi Daria, good question! Yes, this assembly includes the pulley.

                          Answered on 6/28/2014 by Vincent from AAP
                      • Q:

                        Where is this Tech bulletin it says to read
                        Asked on 5/24/2014 by Mindshaker911 from Dothan AL

                        1 answer

                      • Q:

                        Assuming that Advance offers it, what is the part number for just the pulley with bearing that is part of this assembly?
                        Asked on 5/28/2010 by Anonymous

                        1 answer

                        • CUSTOMER CARE

                          A:

                          To further assist you on this question can you please provide us with your vehicles year, make, model, and engine size. thank You.

                          Answered on 5/28/2010 by Kevin from AAP
                      • Q:

                        can i just replace the pully and not the tentioner
                        Asked on 3/24/2010 by bill from wilmington nc

                        1 answer

                        • CUSTOMER CARE

                          A:

                          Yes you can just replace the pully without replacing the tensioner.

                          Answered on 5/12/2010 by Rose from AAP
                      Displaying questions 1-4

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