Gates 90K-38115B Serpentine Belt Drive Component Kit

Accessory Belt Drive Kit for Ford V8 Applications

The Gates Accessory Belt Drive Kit 90K-38115B is a complete serpentine belt service solution for select 1990-1992 Ford Bronco, F-150, F-250, and F-350 models. It brings together the belt, tensioner, and idler pulley to restore the accessory drive system with OE-equivalent components.

Key Features

• Complete serpentine belt drive component kit for accessory belt system service
• Includes an OE-equivalent belt with 93.985 in. outside circumference and 20 mm top width
• Contains belt, tensioner, and idler pulley for a full front-end accessory drive refresh
• Built for vehicles with enclosed spring design and factory-installed air conditioning
• Gates part number 90K-38115B; belt part number K060935, tensioner assembly 38115, idler pulley 38015

Product Details

Gates 90K-38115B is part of the Accessory Belt Drive Kit line, a product family focused on restoring the entire serpentine drive rather than replacing only the belt. That matters on higher-mileage Ford Bronco and Ford F-150, F-250, and F-350 applications, where worn tensioners or idlers can shorten belt life and create repeat service issues. This kit is built around the K060935 belt and matched drive components for the listed Ford trucks and Bronco models.

This part cross-references Monroe Shocks & Struts (e.g., DBK060935C) for the same application.

What It Helps Address

• Squealing or chirping from a worn serpentine belt drive
• Belt tracking problems caused by a weak tensioner
• Noise from a worn idler pulley
• Premature belt wear after a belt-only replacement
• Accessory drive service on aging Ford Bronco and Ford truck applications

Installation Notes and Tips

Compatible With 1990-1992 Ford Bronco, N/A; 1990-1992 Ford F-150, N/A; 1990-1992 Ford F-250, N/A; and 1990-1992 Ford F-350, N/A. Verify the enclosed spring design and factory A.C. configuration before installation. Confirm belt routing and component alignment against the vehicle’s accessory drive layout, and follow the included installation instructions and tech tips for accurate setup.

Quality Assurance

Gates supplies this kit as an OE-equivalent replacement solution for the accessory belt drive system, with matched components selected to support proper fit and service consistency on the listed Ford applications.