Dayco 89010 Accessory Drive Belt Tensioner Pulley - Air Conditioning, Alternator and Air Conditioning or Main Drive

Accessory Drive Belt Tensioner Pulley Overview

Dayco 89010 is an accessory drive belt tensioner pulley built with a polymer body and a single bearing for serpentine belt systems. It is specified for applications that use a 6-rib maximum belt width and is listed across a wide range of Ford, Hyundai, Kia, Nissan, Chevrolet, Pontiac, Buick, Oldsmobile, and Mercury vehicles.

Use Dayco 89010 when you need a direct replacement accessory drive belt tensioner pulley for common serpentine belt service on vehicles such as the Hyundai Santa Fe, Kia Optima, and Nissan Sentra.

Key Features

• Accessory drive belt tensioner pulley for serpentine belt systems
• Polymer construction for lightweight, durable operation
• Single-bearing design with 17 mm inner diameter and 12 mm bearing width
• Flat pulley profile
• Maximum belt width: 6 rib
• Cross-references ACDelco 38013 and Gates 36142 for the same application

Detailed Product Description

Dayco 89010 is engineered as a serpentine accessory drive belt tensioner pulley for vehicles that rely on a smooth-running belt path to drive engine accessories. The polymer pulley body helps reduce rotating mass, while the single bearing supports consistent pulley movement under normal accessory drive loads. With a flat profile and 6-rib maximum belt width, this pulley is suited to a broad range of OE-style belt routing setups.

Compatible With 2005-2010 Kia Sportage, 2005-2009 Hyundai Tucson, 2003-2008 Hyundai Tiburon, 2001-2006 Hyundai Santa Fe, 2004-2006 Kia Amanti, 2001-2006 Kia Optima, 2000-2006 Nissan Sentra, and 1998-2001 Nissan Altima, among many other listed applications. It also appears in fitment for Ford Taurus, Hyundai Sonata, and Chevrolet Cavalier applications, making Dayco 89010 a practical service part for multiple platform families.

What It Helps Address

• Squealing or chirping from a worn tensioner pulley
• Belt tracking issues caused by pulley wear
• Rough or noisy pulley rotation
• Accessory drive belt vibration from a deteriorated bearing
• Serpentine belt service on high-mileage vehicles

Installation Notes and Tips

Verify pulley diameter, belt width, and bearing dimensions against the original part before installation. Confirm the vehicle’s belt routing and application position, especially on models listed for alternator, air conditioning, or main drive use. Inspect the serpentine belt, tensioner arm, and adjacent idlers for wear at the same time so the new pulley is installed into a clean, properly aligned belt path.

Fitment examples include 2003-2006 Hyundai Santa Fe, alternator and air conditioning; 2004-2006 Kia Amanti, air conditioning; and 1998-2001 Nissan Altima, main drive. Dayco 89010 is also listed for 1996-1997 Ford Taurus and 1996-1997 Mercury Sable accessory drive belt tensioner pulley applications.

Quality Assurance

Dayco is a recognized name in accessory drive components, and this pulley is built to match the dimensional and application requirements listed for the part number 89010. Use the published fitment and bearing specifications to confirm correct selection before service.