Litens 920663A Overrunning Alternator Decoupler OAD Pulley

The Litens 920663A is an Overrunning Alternator Decoupler (OAD) pulley engineered to meet or exceed original equipment specifications. As a direct OEM-quality replacement, it restores proper front-end accessory drive (FEAD) system function and protects drivetrain components from harmful torsional vibrations generated by the alternator.

Key Features:

• OAD decoupler design isolates torsional vibrations from the accessory drive belt system
• Available in plastic and steel construction options engineered for specific engine environments
• Plastic pulleys utilize glass-reinforced Nylon 6/6 for superior dimensional control and surface durability
• Steel pulleys feature precision stamping with close-tolerance ball-bearing pockets
• Electro-deposited epoxy coating provides excellent corrosion resistance
• Crowned running surface promotes proper belt tracking and reduces wear
• Moulded-in ball bearing design ensures a precise fit and extended service life
• Manufactured by Litens — the original OEM supplier of belt drive components to Ford, GM, and Stellantis

Litens is the pioneer of the automatic belt tensioner and OAD pulley technology, with their components found in over half of all vehicles on global roads. The 920663A is part of Litens' comprehensive aftermarket line, delivering the same engineering integrity as the factory-installed part for a reliable, long-lasting repair.