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
 
4.0

(based on 22 reviews)

Ratings Distribution

  • 5 Stars

     

    (11)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (1)

  • 2 Stars

     

    (1)

  • 1 Stars

     

    (3)

81%

of respondents would recommend this to a friend.

Pros

  • Easy to install (15)
  • Durable (8)
  • Lightweight (5)

Cons

    Best Uses

    • Replacement (13)
    • Everyday driving (9)
      • Reviewer Profile:
      • Mechanic (8), Casual driver (6), Auto enthusiast (5), 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 22 customers

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    Displaying reviews 1-10

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    4.0

    part worked as advertised

    By john roy

    from huntsville, AL

    About Me Casual Driver, Mechanic

    Verified Buyer
    Level 1

    Pros

    • Durable
    • Easy To Install

    Cons

      Best Uses

      • Replacement

      Comments about Dayco No Slack Belt Tensioner:

      easy to order, did not get e-mail letting me know it was ready to pick up

      Comment on this review(earn points)

      (3 of 6 customers found this review helpful)

       
      1.0

      Didn't work / FAILED

      By James R

      from Massachusetts

      About Me Auto Enthusiast, Casual Driver

      Verified Buyer
      Helpful Reviewer

      Pros

        Cons

        • Failed After 120mi

        Best Uses

        • Replacement

        Comments about Dayco No Slack Belt Tensioner:

        Maybe a defective part, but after installing it and having it fail/lose tension after 120 miles it was not acceptable. I returned the Dayco part and went and bought a Gates product. Gates product has worked beautifully. Live and learn.

        Comment on this review(earn points)

        (3 of 6 customers found this review helpful)

         
        5.0

        Worked great, easy installation!

        By Mosby1863

        from Colonial Heights, VA

        About Me Mechanic

        Verified Buyer
        Helpful Reviewer

        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)

          (3 of 6 customers found this review helpful)

           
          5.0

          EASY TO INSTALL

          By PROF.

          from Bflo NY.

          About Me Casual Driver

          Verified Buyer
          Helpful Reviewer

          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)

            (3 of 6 customers found this review helpful)

             
            1.0

            Shattered!

            By Mindshaker911

            from Dothan, AL

            Helpful Reviewer

            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)

              (3 of 6 customers found this review helpful)

               
              5.0

              Works as it should.

              By Bob

              from ky

              About Me DIY guy

              Verified Buyer
              Helpful Reviewer

              Pros

              • Correct fit

              Cons

              • none

              Best Uses

              • Replacement

              Comments about Dayco No Slack Belt Tensioner:

              works

              Comment on this review(earn points)

              (3 of 5 customers found this review helpful)

               
              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)

                (3 of 6 customers found this review helpful)

                 
                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)

                  (2 of 5 customers found this review helpful)

                   
                  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)

                  (3 of 6 customers found this review helpful)

                   
                  4.0

                  works as it should

                  By Danny

                  from Columbus, GA

                  About Me Auto Enthusiast

                  Verified Buyer
                  Helpful Reviewer

                  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)

                    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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