SKP SK89665 Accessory Drive Belt Tensioner Assembly

Accessory Drive Belt Tensioner for Ford Super Duty

The SKP SK89665 accessory drive belt tensioner assembly maintains proper belt tension for steady accessory operation and quieter engine performance. It is built from quality materials and tested for fit and function on select Ford truck and van applications.

• Direct replacement accessory drive belt tensioner assembly
• Helps maintain consistent serpentine belt tension
• Supports smooth operation of engine-driven accessories
• Built for a precise fit on select Ford F-150, F-350, F-250 Super Duty, F-350 Super Duty, and E-350 Super Duty applications
• SK89665 cross-references Dayco 89665 and Four Seasons 39179 for the same application

Fitment Details

• Fits 2011-2019 Ford F-250 Super Duty, N/A
• Fits 2010-2019 Ford F-350 Super Duty, N/A
• Fits 2017-2018 Ford E-350 Super Duty, N/A
• Fits 2011-2016 Ford F-350, N/A
• Fits 2010-2014 Ford F-150, N/A

Common Problems This Part Addresses

• Loose or inconsistent serpentine belt tension
• Belt noise from a worn tensioner assembly
• Reduced accessory drive stability
• Premature belt wear from weak tension control
• Drive belt vibration on Ford F-150 and Ford Super Duty applications

Installation Notes

Verify belt routing and inspect the serpentine belt, pulleys, and related accessory drive components before installation. Confirm the part number SK89665 matches the vehicle application before replacement.

Quality Assurance

SKP tensioner assemblies are manufactured with quality materials and tested to support proper fit and quieter operation in the accessory drive system.