Idler Pulley
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Idler Pulley
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Dayco No Slack Idler Pulley

Part No. 89015 Warranty  

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Dayco No Slack Idler/Tensioner Pulleys are built with smoother surfaces and tighter dimensional tolerances, which translates to less vibration and therefore longer pulley life.

Product Features:
  • Lifetime lubricated ball bearings
  • Double high temperature seals to assure peak bearing performance
  • Grooved pulley that contains specially formulated glass-filled polymers to insure a high strength, cooler running, wear resistant "plastic" pulley
  • Meets or exceeds OE quality
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Belt Type:Serpentine
Bracket Included:No
Diameter:70 mm
Idler Pulley Bearing Inside Diameter:17 mm
Idler Pulley Groove Quantity:6
Idler Pulley Material:Polymer
Idler Pulley Width:28.3 mm

REVIEW SNAPSHOT®

by PowerReviews
Dayco No SlackIdler Pulley
 
4.0

(based on 21 reviews)

Ratings Distribution

  • 5 Stars

     

    (12)

  • 4 Stars

     

    (4)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

86%

of respondents would recommend this to a friend.

Pros

  • Easy to install (16)
  • Durable (6)
  • Lightweight (5)

Cons

    Best Uses

    • Everyday driving (11)
    • Replacement (10)
      • Car & Truck:
      • Truck enthusiast (3)
      • Reviewer Profile:
      • Auto enthusiast (7), Casual driver (7), Mechanic (5)

    Most Liked Positive Review

     

    Price in store was higher than on-line.

    Used the original dust cover and no issues to date.Just purchased & self-installed 6/4/10 in less than 15 minutes. Be sure to properly align pin in engine block before tightening. This...Read complete review

    Used the original dust cover and no issues to date.Just purchased & self-installed 6/4/10 in less than 15 minutes. Be sure to properly align pin in engine block before tightening. This was improperly installed after an engine replacement and is what caused the original bearing to fail.

    VS

    Most Liked Negative Review

     

    Cheap but works

    Quality doesn't appear to be best compared to some of the OEM AcDelco pulleys. The Dayco pulley I just bought shows an obvious seem in the plastic, even on the ribs of the...Read complete review

    Quality doesn't appear to be best compared to some of the OEM AcDelco pulleys. The Dayco pulley I just bought shows an obvious seem in the plastic, even on the ribs of the pulley. The actual bearing is labeled NTN & made in Canada. Ironically, the same tensioner pulley I'm replacing had NTN bearings.

    After comparing both, the Duralast brand at Auto Zone is exactly the same as this Dayco Pulley, just repackaged and slightly cheaper. This makes me wonder what the real difference is in cheap parts brands anymore.

    If not needed in a hurry I would have just bought the OEM AcDelco pulley from rockauto for about the same price and a piece of mind.

    Reviewed by 21 customers

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    Displaying reviews 1-10

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    5.0

    perfect fit, easy to install

    By chick

    from Advance, NC

    Verified Buyer

    Pros

    • Easy To Install
    • Simple Install

    Cons

      Best Uses

        Comments about Dayco No Slack Idler Pulley:

        perfect fit, make sure you have a 8mm hex to do the job

        Comment on this review(earn points)

         
        5.0

        Easy install on '94 V6 4x4 Ranger

        By pennywel

        from Greensboro, NC

        About Me Auto Enthusiast, Mechanic

        Ask me a question

        Verified Buyer
        Level 4

        Pros

        • Easy To Install

        Cons

          Best Uses

          • Everyday Driving

          Comments about Dayco No Slack Idler Pulley:

          No more squeak.

          Comment on this review(earn points)

           
          4.0

          direct replacement fit, snap to install

          By blueridge man

          from shenandoah valley, va

          About Me Casual Driver

          Verified Buyer
          3 or more reviews submitted

          Pros

          • Easy To Install

          Cons

            Best Uses

            • Everyday Driving

            Comments about Dayco No Slack Idler Pulley:

            This was a direct replacement fit for the grooved idler pulley on my 97 Mercury Mountaineer 5.0L.

            Comment on this review(earn points)

             
            5.0

            '94 4x4 4.0L Ford Ranger

            By pennywel

            from Greensboro, NC

            About Me Auto Enthusiast, Mechanic

            Ask me a question

            Level 4

            Pros

            • 98 Just Like Oem
            • Easy To Install
            • Lightweight

            Cons

            • Finish Not Quite Like Oem

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about Dayco No Slack Idler Pulley:

            You can see the seam where the two halves of the plastic body were fused together; it is plastic like the original. I'm sure a few thousand miles will make the seam undecernable. On the Ranger, access the pulley bolt from beneath the truck. Use a 13mm socket; a bent-handle ratchet is ideal or just work with what you have. Bolt threads are right-hand. Make sure the belt is seated in the grooves of all the ribbed pulleys. Simple install.

            Comment on this review(earn points)

             
            5.0

            perfect fit

            By under the car mechanic

            from medina ohio

            About Me Auto Enthusiast

            Verified Buyer
            Level 1

            Pros

            • Durable
            • Easy To Install
            • Lightweight

            Cons

            • No Improvement In Performance

            Best Uses

            • Everyday Driving

            Comments about Dayco No Slack Idler Pulley:

            All plastic orginal was all metal but car is 14 years old. Hell intskes are now plastic

            Comment on this review(earn points)

             
            1.0

            Not good

            By Jim

            from niles Mi.

            About Me Mechanic

            Verified Buyer
            Level 2

            Pros

              Cons

              • Difficult To Install
              • Dust Shild Will Lock It
              • Will Not Fit Dust Shild W

              Best Uses

                Comments about Dayco No Slack Idler Pulley:

                When you tighten the bolt the dust shild will hit the pully and lock it up,,, had to cut it apart and just use the bearing out of it,

                Comment on this review(earn points)

                (6 of 11 customers found this review helpful)

                 
                5.0

                i would buy this again

                By caveman

                from crandon wi

                About Me Mechanic

                Ask me a question

                Verified Buyer
                Level 3

                Pros

                • Durable
                • Easy To Install

                Cons

                  Best Uses

                  • Everyday Driving

                  Comments about Dayco No Slack Idler Pulley:

                  I would recommend this part to my friends that would need this part

                  Comment on this review(earn points)

                  (6 of 13 customers found this review helpful)

                   
                  5.0

                  exact fit

                  By Bee

                  from Erie PA

                  About Me Casual Driver

                  Verified Buyer
                  3 or more reviews submitted

                  Pros

                  • Durable
                  • Easy To Install
                  • Lightweight

                  Cons

                    Best Uses

                    • Everyday Driving

                    Comments about Dayco No Slack Idler Pulley:

                    Bolted right on, quieted the engine down. On Ford Windstar, the clearance is extremely tight for replacing this. It helps to pry the motor over with a bar and temporarily shim it while changing it, the extra half inch is essential to easy removal.
                    Also the large factory washer gets discarded before reinstalling or it will not spin.

                    Comment on this review(earn points)

                    (6 of 13 customers found this review helpful)

                     
                    5.0

                    Great product

                    By RobC

                    from Gainesville, FL

                    About Me Casual Driver

                    Verified Buyer
                    Helpful Reviewer

                    Pros

                    • Easy To Install

                    Cons

                      Best Uses

                      • Replacement

                      Comments about Dayco No Slack Idler Pulley:

                      Slightly thicker than OEM but otherwise exactly the same. I noticed a few other reviews said it is make from plastic whereas the OEM was steel. My truck was original and both were made from plastic.

                      Comment on this review(earn points)

                      (7 of 14 customers found this review helpful)

                       
                      1.0

                      Not exact fit

                      Comments about Dayco No Slack Idler Pulley:

                      Size is corrrect, but the way it is made, the inside of the pulley rubs on the tensioner. Also OEM is metal and this is plastic.

                      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.

                      3 Questions | 5 Answers
                      Displaying questions 1-3
                      • Q:

                        can i bypass the compressor and get a smaller belt to work instead of getting a compressor.
                        Asked on 4/27/2010 by red from san antonio,tx

                        2 answers

                        • CUSTOMER CARE

                          A:

                          You may be able to but i would consult your vehicle manufacturer because sometimes you can bypass the compressor with the same size belt but the belt is put on in a different sequence.

                          Answered on 4/28/2010 by Chris
                        • A:

                          Yes, you just have to put this idler pulley right here up underneath the compressor and put the belt on it instead of the compressor. Most vehichles have the secondary routing drawing under the hood.

                          Answered on 5/3/2011 by Brad from Hiram, Georgia
                      • Q:

                        how do you replace this pulley
                        Asked on 10/30/2009 by ray from bham ala

                        2 answers

                        • CUSTOMER CARE

                          A:

                          For the best help with your “Do it yourself” project, I recommend visiting your local Advance Auto Parts store and picking up the Haynes repair manual for your vehicle. These manuals you give step by step instructions on numerous services for the specific vehicle and the tools needed. While in the store, feel free to speak with a Advance Auto Parts representative there in the store for helpful hints and information as well.

                          Answered on 11/2/2009 by Mikey from Advance Auto Parts
                        • A:

                          It very simple, (1) remove the passenger side wheel. then you have access to the idler pulley itself. (2) release tension from serpentine belt with 15mm socket and extention. (3) remove pully thru bolt. reverse steps for installation.

                          Answered on 10/5/2010 by Karl from Gods country (Michigan)
                      • Q:

                        how do you replace this pulley
                        Asked on 10/30/2009 by ray from bham ala

                        1 answer

                        • CUSTOMER CARE

                          A:

                          For the best help with your “Do it yourself” project, I recommend visiting your local Advance Auto Parts store and picking up the Haynes repair manual for your vehicle. These manuals you give step by step instructions on numerous services for the specific vehicle and the tools needed. While in the store, feel free to speak with a Advance Auto Parts representative there in the store for helpful hints and information as well.

                          Answered on 11/2/2009 by Mikey from Advance Auto Parts
                      Displaying questions 1-3

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