Perrin Alternator Pulley Black 2002-2005 WRX / 2004-2006 STI / 1993-2011 Impreza / 1998-2010 Forester / 2000-2004 Outback

Upgrade your Subaru’s engine responsiveness with the Perrin Alternator Pulley, engineered for WRX, Subaru WRX STI, Impreza, Forester, and Outback models spanning 1993 to 2011. This premium pulley reduces rotational mass, allowing your engine to rev more freely and deliver quicker throttle response, making it an excellent choice for both daily driving and spirited track use.

Crafted from precision CNC-machined 6061-T6 aluminum with a durable anodized black finish, the Perrin pulley is lightweight yet exceptionally strong. It directly replaces the OEM steel pulley without requiring tuning or modifications, maintaining full charging system functionality. Compatible with OEM and aftermarket belts, it offers a subtle but effective performance boost while ensuring reliable operation.

Ideal for Subaru enthusiasts seeking improved engine efficiency and smoother power delivery, this pulley is easy to install and built to last. Enhance your Subaru’s performance and driving experience with this trusted upgrade.