Perrin Alternator Pulley Black 2006-2014 WRX / 2007-2021 STI / 2012-2016 Impreza / 2006-2013 Forester XT / 2005-2009 Legacy

The PERRIN Performance Crank Pulley weighs just .2 lbs, which is lighter than the stock OEM pulley. Throttle response, horsepower and torque are all increased with this easy to install part. Precision machined mounting hub included.

Designed to look mean and fast, the PERRIN Performance crank pulley has precision machined grooves which tightly sync with all OEM and aftermarket belts.

The PERRIN crank pulley is machined from 6061T6 billet aluminum, anodized red or black and laser etched for increased belt life and a precision fit. Precision machined grooves tightly sync with all OEM and aftermarket belts.