Alternator Decoupler Pulley

DriveAlign Alternator Decoupler Pulleys allow the alternator to “free-wheel” or “overrun” every time the engine decelerates and provide vibration isolation within the accessory belt drive system. This results in smoother engine performance, efficiency and increased belt and component life. The line consists of overrunning alternator decoupler pulleys and one-way clutches (not interchangeable).
Exact OE replacement
Chosen by OEMs to reduce noise, vibration and harshness and improve fuel economy
Patented design unmatched by any other supplier