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Over Running Pulleys

The alternator freewheeling pulley is an important component that is increasingly used
in the latest diesel and high performance petrol motor vehicles. The freewheeling pulley
is the ideal solution to the evolution of latest generation engines and to the increasing
electrical performance of alternators.

The freewheeling pulley compensates for the inertia generated within the alternator
through the constant acceleration and deceleration of the engine. The freewheeling
pulley offers several advantages to the auxiliary belt system:-

1. Reduction of vibrations on the belts
2. Reduction of tension variations
3. Increase of the system life
4. Reduction of the system noise

Use the search box on the left and the original manufacturers part number on your pully to find the one suitable for your vehicle.



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