Dayco 89815 Accessory Drive Belt Tensioner Pulley

Dayco 89815 Accessory Drive Belt Tensioner Pulley

Dayco 89815 is a steel accessory drive belt tensioner pulley for serpentine belt systems. It is built for vehicles that use a 7-rib belt and a single-bearing pulley design, with a flat profile for proper belt tracking.

• Steel pulley construction for accessory drive belt service
• Serpentine belt application
• Flat pulley design
• Max belt width: 07 rib
• Single bearing design
• Bearing inner diameter: 16.90 mm
• Bearing width: 12.0 mm
• Part number: 89815

Vehicle Fitment

• Fits 2018-2021 Hyundai Tucson, N/A, Steel
• Fits 2019-2020 Hyundai Santa Fe, N/A, Steel
• Fits 2016-2020 Kia Optima, N/A, Steel
• Fits 2016-2020 Kia Sorento, N/A, Steel
• Fits 2018-2020 Kia Sportage, N/A, Steel
• Fits 2016-2019 Hyundai Sonata, N/A, Steel
• Fits 2016-2018 Hyundai Santa Fe Sport, N/A, Steel
• Fits 2016 Hyundai Santa Fe Sport, N/A, Steel; from 12/12/2015

Detailed Description

This Dayco accessory drive belt tensioner pulley is specified for Hyundai and Kia applications that use a serpentine accessory drive system. The steel pulley construction, flat profile, and 7-rib belt capacity support correct belt routing and stable pulley operation in the accessory drive belt system. If you are replacing a worn pulley on a Hyundai Tucson, Hyundai Sonata, Kia Optima, Kia Sorento, Kia Sportage, or Hyundai Santa Fe/Santa Fe Sport, Dayco 89815 matches the listed fitment and dimensions.

Part number 89815 is a direct-fit style replacement for the listed Hyundai and Kia models, and the bearing dimensions help identify the correct pulley for service work. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

• Squealing or chirping from the accessory drive belt area
• Worn or rough pulley bearing noise
• Belt tracking issues on a serpentine system
• Visible pulley wear or surface damage
• Accessory drive belt tensioner service on listed Hyundai and Kia vehicles

Installation Notes and Tips

Verify belt type, rib count, and bearing dimensions before installation. Confirm the vehicle application by year, make, and model, including the 2016 Hyundai Santa Fe Sport listing that applies from 12/12/2015. Inspect the serpentine belt, tensioner assembly, and adjacent pulleys during service so the replacement pulley is installed into a clean, properly aligned belt path.

Quality Assurance

Dayco is a recognized name in accessory drive components, and part 89815 is built to the listed material and dimensional specifications for the confirmed applications above.