The Best Belts & Tensioners on Advance Auto Parts Shop 2025

1. Dayco Poly Rib Belt, Premium

The Dayco Poly Rib Belt is designed for power transmission on heavy duty multiple-accessory drives. This Poly Rib belt is the latest version of the revolutionary multi-ribbed belt first developed by Dayco for the 1979 Ford Mustang. The Dayco Poly Rib Belt is manufactured from an extreme temperature EPDM rubber and features a construction that uses a highly fiber loaded compound to maximize belt life and load carrying requirements while minimizing pulley misalignment noise. This belt offers excellent resistance to high under hood temperatures and ozone contamination. In addition, specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt. The Dayco Poly Rib Belt meets or exceeds SAE J1459 and SAE J2432 specifications.

Advanced design EPDM rubber compound, loaded with aramid fibers, maximizes belt life and load carrying requirements while minimizing pulley misalignment noise EPDM rubber compound offers excellent resistance to high under hood temperatures and ozone contamination Solid rib design for additional strength and excellent pulling power on both light and heavy duty applications Specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt Effective Length : 125.35 in Material : EPDM, Aramid Reinforced Outside Circumference : 125.91 in Top Width : 1.10 in

2. Dayco Automatic Belt Tensioner

Dayco No Slack Automatic Belt Tensioners are built to outperform and outlast competitive OE parts. This specific Dayco Automatic Belt Tensioner is 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. 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. This tensioner contains a metallic locator pin built to withstand extreme drive demands and properly locate the tensioner for installation.

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 heavy duty cast aluminum spring case resists cracking and fatigue This tensioner is another Dayco product proudly made in the USA Belt Type : Serpentine Mounting Type : Automatic Pulley Diameter : 76 In Pulley Material : Polymer Pulley Type : Flat Pulley Width : 33 In

3. Driveworks Serpentine Belt

V-Ribbed Belt

Fiber is added to the rib stock to reinforce the rubber and reduce noise from worn and misaligned pulleys

4. Dayco Automatic Belt Tensioner

Dayco No Slack Automatic Belt Tensioners are built to outperform and outlast competitive OE parts. This specific integral Dayco Automatic Belt Tensioner is 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. 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.

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 The heavy duty cast aluminum spring case resists cracking and fatigue Includes installation instructions Belt Type : Serpentine Mounting Type : Automatic, Intergal Pulley Diameter : 76 In Pulley Material : Polymer Pulley Type : Flat Pulley Width : 22 In

5. Dorman - OE Solutions Power Steering Pump Pulley

PWR STEERING PULLEYS

Durable construction - this part is made from quality materials to ensure reliable performance and long service life

6. Dayco XTX Snow / ATV Belt

Bred from a rich history of experienced belt builders, Dayco XTX (Extreme Torque) Snowmobile Belts are specifically engineered for the aggressive rider to maximize the performance of high horsepower snowmobiles. A specially formulated high temperature polymer, along with the highest level of engineered reinforcement gives this belt exceptional performance in the high torque, high operating temperatures expected on these super high horsepower machines. The innovative break-through design of deeper cogs on top and rounded cogs on the bottom, yield the advantages of ultimate flexibility and longer belt life. The new Dayco XTX snowmobile belt maximizes performance; so that you reign supreme, on the trail, the race course, and in the eyes of those having to catch up to you.

High temperature polymers along with the highest level of engineered reinforcement gives this belt exceptional performance in the high torque and operating temperatures expected on super high horsepower machines Innovative break-through design of deeper cogs on top and rounded cogs on the bottom yield the advantages of ultimate flexibility and longer belt life Maximizes performance so that you reign supreme, on the trail, the race course, and in the eyes of those having to catch up to you Made in the USA

7. Dayco Poly Rib Belt, Premium Fits select: 2013-2021 RAM 2500, 2013-2021 RAM 3500

The Dayco Poly Rib Belt is designed for power transmission on heavy duty multiple-accessory drives. This Poly Rib belt is the latest version of the revolutionary multi-ribbed belt first developed by Dayco for the 1979 Ford Mustang. The Dayco Poly Rib Belt is manufactured from an extreme temperature EPDM rubber and features a construction that uses a highly fiber loaded compound to maximize belt life and load carrying requirements while minimizing pulley misalignment noise. This belt offers excellent resistance to high under hood temperatures and ozone contamination. In addition, specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt. The Dayco Poly Rib Belt meets or exceeds SAE J1459 and SAE J2432 specifications.

Advanced design EPDM rubber compound, loaded with aramid fibers, maximizes belt life and load carrying requirements while minimizing pulley misalignment noise EPDM rubber compound offers excellent resistance to high under hood temperatures and ozone contamination Solid rib design for additional strength and excellent pulling power on both light and heavy duty applications Specially formulated treated cord insures length and tension stability on heavy duty diesel engine drives for the life of the belt Effective Length : 124.41 in Material : EPDM, Aramid Reinforced Outside Circumference : 124.97 in Top Width : 1.10 in Fits Select: 2013-2021 RAM 2500 6 Cyl 6.7 L 2013-2021 RAM 3500 6 Cyl 6.7 L and more - add your vehicle to our fit widget to check

8. Dayco Poly Rib Belt

The Dayco Poly Rib Aramid Serpentine Belt has been engineered to maintain a quiet, vibration-free belt drive system. Unlike polyester-corded belts, these aramid cords will resist elongation, especially during high accessory loading. This unique feature of length stability and minimal stretch can aid in those difficult drives where span vibrations and tensioner movements are excessive, resulting in reduced belt noise. The Dayco Poly Rib Aramid Serpentine Belt also features Dayco's W Profile, the solution to troublesome drive problems, and is built with Dayco's specially designed EPDM rubber compounds that resist cracking and perform better under extreme temperature ranges.

The length stability of this belt minimizes span vibrations, tensioner movements, and resulting belt noise The "W" profile rib has been engineered to conform to slight misalignments, the number one cause for belt noise No-Noise Advanced Design EPDM rubber compound for quiet extended life Made in the USA Effective Length : 79.53 In Material : EPDM, Aramid Reinforced Outside Circumference : 80.06 In Top Width : .96 In

9. Dayco Poly Rib Belt, Premium - Engineered to conform to high mileage, worn or misaligned drives

Dayco engineered to conform to high mileage, worn or misaligned drives without a sacrifice in quiet, long-lasting performance. Constructed with Aramid reinforced EPDM compounds, it delivers more than OE required quality... it delivers the solution to troublesome drive problems. Dayco Poly-Rib Belts meet or exceed SAE J1459 and SAE J2432 specifications.

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 Effective Length : 126.58 In Material : EPDM, Aramid Reinforced Outside Circumference : 127.13 In Top Width : .82 In

10. Dayco Timing Belt Kit With Components And Belt

Timing Belt Kit

Designed for replacement of worn or damaged OEM timing belts, idler pulleys, timing belt tensioners, and water pumps