Poly Rib Belt
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Poly Rib Belt
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Dayco Poly Rib Poly Rib Belt

Part No. 5040378 Warranty  

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Designed for high mileage multiple-accessory drives, Dayco’s “W” profile belt (patent pending) is the most innovative advancement in multi-rib belt design in over 25 years. Dayco Poly-Rib Belts meet or exceed SAE J1459 and SAE J2432 specifications. This Poly-Rib Belt is another Dayco product proudly made in the USA.

Product Features:
  • The "W" profile rib has been engineered to conform to slight misalignments, the number one cause for belt noise
  • Aramid noise resistant fibers embedded in the rubber make this belt run quieter in worn or misaligned pulleys
  • No-Noise Advanced Design EPDM rubber compound for quiet extended life
  • Made in the USA
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Belt Length:37.80 in
Belt Width:.54 in
Material:EPDM, Aramid Reinforced
Rib Quantity:4

REVIEW SNAPSHOT®

by PowerReviews
Dayco Poly RibPoly Rib Belt
 
4.0

(based on 22 reviews)

Ratings Distribution

  • 5 Stars

     

    (12)

  • 4 Stars

     

    (6)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (4)

82%

of respondents would recommend this to a friend.

Pros

  • Easy to install (16)
  • Durable (12)
  • Improves engine efficiency (7)
  • Lightweight (5)
  • Increases power (3)

Cons

    Best Uses

    • Replacement (15)
    • Everyday driving (12)
    • Performance driving (4)
    • Restoration (4)
    • Racing (3)
      • Car & Truck:
      • Casual driver (3)
      • Reviewer Profile:
      • Mechanic (7), Auto enthusiast (6), Casual driver (5), Truck enthusiast (5)

    Most Liked Positive Review

     

    good belt

    Belt works great on my 02 Avalanche 5.3L for the ac pulley, easy to install especially from underneath the vehicle. comes with a 3 yr warranty

    Belt works great on my 02 Avalanche 5.3L for the ac pulley, easy to install especially from underneath the vehicle. comes with a 3 yr warranty

    VS

    Most Liked Negative Review

     

    Buy a Gates belt!!!!

    Never had a good experience with Dayco belts, if you have a GM product use Gates Belts they make the oem delco belts

    Never had a good experience with Dayco belts, if you have a GM product use Gates Belts they make the oem delco belts

    Reviewed by 22 customers

    Sort by

    Displaying reviews 1-10

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    5.0

    Looks and price good

    By Dave great

    from Coldwater, mi

    About Me Mechanic

    Verified Buyer
    Level 1

    Pros

    • Easy To Install
    • Looks well made

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about Dayco Poly Rib Poly Rib Belt:

      Fitment great for the silverado nice product

      Comment on this review(earn points)

      (2 of 2 customers found this review helpful)

       
      5.0

      good belt

      By vikingfirebeard

      from jacksonville, fl

      About Me Auto Enthusiast, Mechanic, Truck Enthusiast

      Ask me a question

      Level 6

      Pros

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

      Cons

        Best Uses

        • Everyday Driving
        • Replacement
        • Restoration

        Comments about Dayco Poly Rib Poly Rib Belt:

        Belt works great on my 02 Avalanche 5.3L for the ac pulley, easy to install especially from underneath the vehicle. comes with a 3 yr warranty

        Comment on this review(earn points)

         
        4.0

        There's a seperate AC belt...Yes!

        By bbmxta

        from Tallahassee, FL

        About Me Auto Enthusiast, Casual Driver, Truck Enthusiast

        Verified Buyer
        3 or more reviews submitted

        Pros

        • Easy To Install

        Cons

        • none

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Dayco Poly Rib Poly Rib Belt:

        Replaced old AC and main drive belts at same time. Most don't realize there is a seperate AC belt on the Chevy trucks from the drive belt. Let's just say I have no more squeling in the mornings and I am happy.

        Comment on this review(earn points)

         
        5.0

        Exact fit

        By drivingviking

        from Florida

        About Me Truck Enthusiast

        Ask me a question

        Level 3

        Pros

        • Durable
        • Easy To Install
        • Improves Engine Efficiency

        Cons

          Best Uses

          • Replacement

          Comments about Dayco Poly Rib Poly Rib Belt:

          Exact fit for a 2007 Chevrolet Silverado 1500 LS. Like the W grooves in the ribs.

          Comment on this review(earn points)

          (12 of 25 customers found this review helpful)

           
          5.0

          Great part. I highly recommend buying.

          By Mac

          from Villa Rica, Ga

          About Me Auto Enthusiast, Casual Driver, Truck Enthusiast

          Verified Buyer
          Level 2

          Pros

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

          Cons

            Best Uses

            • Everyday Driving
            • Performance Driving
            • Racing
            • Replacement
            • Restoration

            Comments about Dayco Poly Rib Poly Rib Belt:

            I purchased it for my H2 and it was an exact fit. I noticed better performance during the first test drive. I didn't realized how bad my old belt was slipping. Great product. I look forward to upgrading my other vehicles.

            Comment on this review(earn points)

            (13 of 26 customers found this review helpful)

             
            4.0

            A/C Belt

            By Craig

            from Southern Indiana

            About Me Mechanic, Truck Enthusiast

            Verified Buyer
            Level 3

            Pros

            • Durable
            • Easy To Install

            Cons

              Best Uses

              • Replacement

              Comments about Dayco Poly Rib Poly Rib Belt:

              Good quality looking belt. Just put on so don't know long term results.

              Comment on this review(earn points)

              (15 of 31 customers found this review helpful)

               
              5.0

              Perfect fit

              By Mudweiser99

              from Saint Joseph MN

              About Me Mechanic

              Level 3

              Pros

              • Durable
              • Easy To Install

              Cons

                Best Uses

                • Everyday Driving

                Comments about Dayco Poly Rib Poly Rib Belt:

                The belt fit perfect.

                Comment on this review(earn points)

                (14 of 30 customers found this review helpful)

                 
                4.0

                Good looking belt

                By Jae

                from Concord, NC

                About Me Auto Enthusiast, Casual Driver

                Verified Buyer
                Level 3

                Pros

                • Easy To Install

                Cons

                  Best Uses

                  • Everyday Driving

                  Comments about Dayco Poly Rib Poly Rib Belt:

                  Installed a month ago, but I hope it holds up a long time.

                  Comment on this review(earn points)

                  (16 of 34 customers found this review helpful)

                   
                  1.0

                  need refund

                  By mike

                  from nj

                  Verified Buyer
                  Level 2

                  Comments about Dayco Poly Rib Poly Rib Belt:

                  this belt was for the AC, I returned it and never got my refund to PayPal. last time I buy from Advance

                  Comment on this review(earn points)

                  (15 of 30 customers found this review helpful)

                   
                  5.0

                  bought belts for my other truck

                  By sam

                  from jacksonville,fl.

                  About Me Auto Enthusiast, Casual Driver

                  Verified Buyer
                  Level 3

                  Pros

                  • Durable
                  • Easy To Install
                  • Improves Engine Efficiency

                  Cons

                    Best Uses

                    • Everyday Driving
                    • Performance Driving
                    • Replacement
                    • Restoration

                    Comments about Dayco Poly Rib Poly Rib Belt:

                    the thickness of the belt is what sold me, it lasts a lot longer

                    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:

                      how do i get a diagram to install the serpentine belt on a 2003 chevy express 3500
                      Asked on 1/9/2013 by den from oxford

                      1 answer

                      • CUSTOMER CARE

                        A:

                        With reference to your query on Dayco Poly Rib Poly-Rib® Belt - (Part No. 5040378), the requested diagram has been sent to your mail. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                        Answered on 1/10/2013 by Aaron from AAP
                    • Q:

                      Im going to replace this belt on my 2006 escalade with 120k miles.
                      Do I need to change the belt TENSIONER AS WELL? If yes why?
                      Thanks
                      Asked on 8/23/2012 by eva from Frederickburg, va

                      1 answer

                      • CUSTOMER CARE

                        A:

                        It is common to replace the timing belt tensioner at the same time as the belt is replaced.The usual failure modes of timing belts are either stripped teeth (which leaves a smooth section of belt where the drive cog will slip) or delamination and unraveling of the fiber cores. Breakage of the belt, because of the nature of the high tensile fibers, is uncommon. Correct belt tension is critical - too loose and the belt will whip, too tight and it will whine and put excess strain on the bearings of the cogs. In either case belt life will be drastically shortened. Aside from the belt itself, also common is a failure of the tensioner. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.

                        Answered on 8/23/2012 by Vincent from AAP
                    • Q:

                      I'm looking for a diagram for this belt for a 2001 chevy tahoe.
                      Asked on 6/13/2010 by Bruce from Titusville, Fl

                      1 answer

                      • CUSTOMER CARE

                        A:

                        I recommend that you go to your local Advance Auto Parts store and purchase a repair manual. The repair manual will have a diagram for the belt.

                        Answered on 7/2/2010 by Kevin from AAP
                    • Q:

                      I need a diagram for this product.
                      Asked on 4/3/2010 by Anonymous

                      1 answer

                      • CUSTOMER CARE

                        A:

                        Can you please provide me the year, make, model and engine size of your vehicle so that I may better help you.

                        Answered on 4/7/2010 by Mike from Anon
                    Displaying questions 1-4

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                    Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.