Dayco 89509 Accessory Drive Belt Idler Pulley - Power Steering

Accessory Drive Belt Idler Pulley for Suzuki and Chevrolet

The Dayco 89509 accessory drive belt idler pulley is built for serpentine belt systems that need stable belt routing and consistent tension control. With a steel construction and a single bearing design, it supports smooth belt travel in power steering applications across select Suzuki and Chevrolet models.

Key Features

• Steel pulley construction for durable accessory drive belt service
• Serpentine belt type application
• Flat pulley design
• Single bearing design
• Bearing inner diameter: 8.1 mm
• Bearing width: 16 mm
• Maximum belt width: 4 rib
• Dayco part number 89509

Detailed Product Overview

Dayco 89509 is an accessory drive belt idler pulley made for serpentine belt routing in select power steering and accessory drive systems. It is listed for 1999-2008 Suzuki Grand Vitara, power steering; 2002-2005 Suzuki XL-7, power steering; 2001-2004 Chevrolet Tracker, power steering; 2006 Suzuki XL-7; and 2004 Suzuki Vitara. This part cross-references ACDelco 36280 for the same application. The steel pulley body and single bearing layout are specified to match the demands of belt-driven accessory systems where alignment and smooth rotation matter.

Common Issues This Part Can Address

• Belt noise from a worn idler pulley bearing
• Serpentine belt tracking problems caused by pulley wear
• Accessory drive belt vibration in power steering applications
• Uneven pulley rotation from bearing deterioration
• Visible pulley surface wear affecting belt contact

Installation Notes and Tips

Verify the vehicle year, make, model, and position before ordering. This pulley is listed for power steering and N/A positions depending on application, so match the original routing and pulley style on the vehicle. Inspect the serpentine belt, adjacent pulleys, and tensioner condition during service to confirm the full belt drive system is in good working order. Confirm the belt width and bearing dimensions against the original part when replacing the idler pulley.

Quality Assurance

Dayco is a recognized name in accessory drive components, and part 89509 is specified with defined pulley material, bearing size, and belt-width limits for accurate replacement selection.