Gates 90K-39221 Serpentine Belt Drive Component Kit

Reliable Accessory Belt Drive Kit for Ford and Lincoln Vehicles

The Gates Accessory Belt Drive Kit 90K-39221 is designed to provide a complete serpentine belt drive solution for select Ford and Lincoln models. This kit includes two belts and a tensioner assembly engineered to meet the specific requirements of vehicles like the Ford F-150, Mustang, and Lincoln Navigator.

• Includes two serpentine belts with outside circumferences of 55.276 inches (1404 mm) and 36.5 inches (927 mm)
• Belt top widths of 14 mm and 20 mm for precise fitment
• Durable tensioner assembly with part number 39221 included
• Compatible with Ford F-150, Mustang, and Lincoln Navigator models
• Part number 90K-39221 for easy identification and ordering

About the Gates Accessory Belt Drive Kit

The Accessory Belt Drive Kit from Gates is a comprehensive solution designed to replace critical serpentine belt components in accessory drive systems. This kit combines high-quality belts and a tensioner assembly to ensure proper belt tension and reliable operation. The included belts feature specific outside circumferences and widths to match factory specifications, helping maintain optimal accessory drive performance in Ford and Lincoln vehicles.

Product Details and Specifications

This kit contains two serpentine belts: one with an outside circumference of 55.276 inches (1404 mm) and a top width of 20 mm, and another with an outside circumference of 36.5 inches (927 mm) and a top width of 14 mm. The belts correspond to part numbers K060547 and K040359sf respectively. The tensioner assembly included carries the part number 39221, designed to maintain proper belt tension and reduce wear. These components are engineered to fit accessory drive systems on Ford F-150, Mustang, and Lincoln Navigator models, ensuring compatibility and reliable performance.

Common Applications and Issues Addressed

• Replacement of worn or cracked serpentine belts
• Resolving belt slippage or squealing noises
• Addressing tensioner failure or loss of belt tension
• Preventing accessory drive system malfunctions
• Maintaining proper operation of alternator, power steering, and AC compressor

Installation Notes and Tips

When installing the Gates Accessory Belt Drive Kit 90K-39221, ensure the vehicle is compatible with the kit by verifying make and model fitment. Use proper tools to remove the old belts and tensioner assembly carefully. Follow manufacturer torque specifications when installing the tensioner. Inspect pulleys and accessory components for wear during installation to avoid premature belt failure. Proper alignment and tension are critical for optimal belt life and accessory function.

Quality Assurance and Warranty

Gates manufactures the Accessory Belt Drive Kit 90K-39221 to meet stringent quality standards. The components are engineered for durability and reliable performance in demanding automotive environments. While specific warranty details are not provided here, Gates typically offers coverage against defects in materials and workmanship. Refer to Gates’ official documentation for complete warranty information.