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Alternator Decoupler Pulleys (ADP)


Gates Alternator Decoupler Pulleys Provide Vibration Isolation Within the Accessory Belt Drive System Resulting in Smoother Engine Performance and Efficiency and Increased Belt and Component Life

Alternator Decoupler Pulley

The line consists of overrunning alternator decoupler pulleys and one way clutches (not interchangeable)

  • Exact OE replacement
  • Patented design unmatched by any other supplier
  • Torsion spring absorbs engine vibration for quieter, smoother ride
  • Chosen by OEM to reduce noise, vibration and harshness

Gates Alternator Decoupler Pulleys for the automotive aftermarket allow technicians to repair vehicles equipped with these unique pulleys. Replacing the pulley eliminates the need to replace the entire alternator when just the pulley has worn.

Substituting a solid pulley on an alternator that is originally equipped with an Alternator Decoupler Pulley (ADP) will compromise the performance of the entire Accessory Belt Drive System. It is critically important that technicians identify and replace the proper pulley. Replacing the ADP instead of the entire alternator, can save technicians time and save their customers money.

An ADP is much more technologically advanced than other pulleys because it features an internal spring and clutch system that absorbs engine vibration. The performance improvements and longevity benefits include longer life of all the accessory belt drive components, smoother operation and improved engine efficiency.

How to inspect and replace an Alternator Decoupler Pulley. 

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