Dayco 89851 Accessory Drive Belt Idler Assembly - Lower

Accessory Drive Belt Idler Assembly

Dayco 89851 is an accessory drive belt idler assembly for lower belt routing applications. It is built for direct replacement use on a range of Ford and Lincoln vehicles, including popular truck and SUV platforms.

Key Features

• Accessory drive belt idler assembly for lower mounting applications.
• Direct replacement format for service on the belt drive system.
• Fits multiple Ford and Lincoln platforms with confirmed lower-position coverage.
• Dayco part number 89851 for catalog and service identification.

Detailed Description

Dayco 89851 is an accessory drive belt idler assembly used in the accessory drive belt system to maintain belt routing and support proper belt operation. This part fits 2015-2025 Ford F-150, lower; 2020-2026 Ford Explorer, lower; 2021-2025 Ford Bronco, lower; 2020-2025 Ford Police Interceptor Utility, lower; 2024-2025 Ford Ranger, lower; and 2020-2026 Lincoln Aviator, lower. For buyers searching for a Ford F-150 accessory drive belt idler assembly or a Lincoln Aviator lower idler assembly, this part number 89851 matches the listed applications directly.

This part cross-references no interchange part numbers were provided for this application.

What It Is Used For

• Restoring proper accessory belt routing.
• Replacing a worn or noisy idler assembly.
• Addressing belt tracking concerns in the drive system.
• Supporting stable belt operation in the accessory drive.

Installation Notes and Tips

Verify the vehicle year, make, model, and lower-position fitment before ordering. Match the existing belt routing and inspect the belt path, pulleys, and related components during service. Confirm Dayco 89851 against the vehicle application listed in the catalog before installation.