Dayco 89038 Accessory Drive Belt Idler Pulley - Air Conditioning or Power Steering

Dayco 89038 Idler Pulley Overview

Dayco 89038 is an accessory drive belt idler pulley built with a steel body and a single bearing for serpentine belt routing. It is a direct-fit style replacement for many Toyota, Geo, Mitsubishi, and related applications that use a 4-rib belt path.

The Dayco Idler Assy. Pulley line focuses on dependable belt tracking and consistent pulley alignment in accessory drive systems. For vehicles such as Toyota Tacoma, Toyota Tundra, and Toyota 4Runner, this pulley supports smooth operation in air conditioning and power steering belt layouts.

Key Features

• Steel construction for durable accessory drive use
• 4-groove pulley profile for serpentine belt systems
• Single bearing design for steady rotation
• Bearing inner diameter: 12 mm
• Bearing width: 12 mm
• Maximum belt width: 4 rib
• Direct replacement style for accessory drive belt idler pulley applications

Detailed Product Description

Dayco 89038 is an accessory drive belt idler pulley designed for serpentine belt systems that require a 4-rib pulley profile. The steel pulley body and single-bearing construction support stable belt routing in engine accessory drives. This part number is used across a wide range of import applications, including Toyota Tacoma, Toyota Tundra, Toyota 4Runner, Toyota Corolla, Toyota Celica, Toyota MR2, and Toyota Supra, along with select Geo, Mitsubishi, Mazda, and Acura models. This part cross-references Gates 38031 for the same application.

As part of the Dayco Idler Assy. Pulley line, 89038 is suited for vehicles where the idler pulley helps maintain belt path alignment in air conditioning and power steering configurations. If you are searching for a Toyota Tacoma idler pulley, Toyota 4Runner accessory drive belt idler pulley, or Dayco 89038 replacement pulley, this part matches the listed fitment by year, make, model, and position.

What It Helps Address

• Squealing or chirping from a worn idler pulley bearing
• Belt tracking issues in serpentine drive systems
• Accessory drive noise from pulley wear
• Uneven belt movement caused by pulley surface wear
• Loss of smooth rotation in air conditioning or power steering belt routing

Installation Notes and Tips

Verify pulley groove count, belt width, and bearing dimensions before installation. Confirm the vehicle position listed in the fitment data, including air conditioning, power steering, or N/A applications, before ordering. Inspect the serpentine belt, tensioner, and adjacent pulleys for wear at the same time to help restore proper belt routing. Use the vehicle service procedure for torque and alignment specifications.

Quality Assurance

Dayco manufactures belt drive components for accessory drive systems, and this pulley is built with steel construction and a single bearing for consistent operation in the listed applications. Confirm fitment against the vehicle year, make, model, and position before installation.