Dayco 89185 Accessory Drive Belt Idler Pulley - Air Conditioning

Accessory Drive Belt Idler Pulley for Honda and Acura

Dayco 89185 is an accessory drive belt idler pulley built for serpentine belt systems on select Honda and Acura applications. It uses a steel pulley body with a single bearing to support smooth belt routing and consistent accessory drive operation.

Key Features

• Steel construction for durable belt-system service
• 4-groove pulley profile for 4-rib serpentine belt applications
• Single bearing design with 17 mm inner diameter and 12 mm bearing width
• Maximum belt width: 4 rib
• Direct replacement style for accessory drive belt idler pulley service

Detailed Description

This Dayco accessory drive belt idler pulley, part number 89185, is specified for serpentine belt systems used on a range of Honda Prelude, Honda Civic, Honda CRX, Honda Civic del Sol, Acura Integra, and related applications. The steel pulley and single-bearing construction are selected to maintain belt tracking and reduce friction in the accessory drive belt path. This part cross-references Honda 38942-PM3-000 for the same application.

Compatible With 1985-1987 Honda Prelude, 1988-1995 Honda Civic, 1988-1991 Honda CRX, 1990-1992 Acura Integra, 1992-2000 Honda Prelude, 1993-1995 Acura Integra, 1993-1996 Honda Civic del Sol, and 1997 Honda Civic del Sol. Dayco 89185 is a fitment-based replacement for vehicles using a 4-rib serpentine belt idler pulley in the accessory drive system.

What It Helps Address

• Noise from a worn or rough idler pulley bearing
• Belt misalignment in the accessory drive path
• Serpentine belt routing issues caused by pulley wear
• Visible pulley groove wear or surface damage
• Accessory drive vibration related to pulley condition

Installation Notes and Tips

Verify pulley groove count, bearing dimensions, and belt width before installation. Confirm the vehicle uses the listed serpentine belt application and match the pulley to the original routing position. Inspect the belt, tensioner, and adjacent pulleys at the same time so the full accessory drive system is in serviceable condition.

Quality Assurance

Dayco manufactures accessory drive components for OE-style replacement use, with attention to pulley material, bearing sizing, and fitment accuracy. Part number 89185 is built to match the specified application requirements for Honda and Acura belt-drive service.