Gates Overrunning Alternator Pulley OAP7063 – Alternator Decoupler

PRODUCT OVERVIEW

The Gates Overrunning Alternator Pulley OAP7063 is designed to provide vibration isolation within the accessory belt drive system. Using an integrated one-way clutch, it helps the alternator freewheel on deceleration and re-engage smoothly under load, improving overall driveability and component life.

KEY FEATURES

• Exact OE replacement overrunning alternator pulley
• Reduces vibration in the accessory belt drive system
• Helps prolong alternator, tensioner and belt life
• Contributes to smoother, quieter and more efficient engine operation

TECHNICAL FUNCTION

The overrunning alternator pulley (OAP) uses a one-way clutch mechanism that allows the alternator to coast when the engine is decelerating, reducing belt shock and noise. Under acceleration and steady driving, the clutch engages to drive the alternator and maintain electrical charge. This technology is based on modern driveline design and is typically matched in service life to other accessory drive components.

In most applications, a specific alternator pulley tool is required for correct removal and installation of the OAP.

SERVICE RECOMMENDATION

• Inspect the overrunning alternator pulley at around 80,000 km or when servicing the accessory drive
• Check for noise, vibration, belt flutter or charging issues as potential signs of pulley wear
• Always replace if the clutch function is seized or slipping excessively

PART DETAILS

• Brand: Gates
• Part Number: OAP7063
• Type: Overrunning alternator pulley (decoupler pulley)

Always confirm part number OAP7063 against your vehicle details and alternator specifications before purchase or installation.