Perrin Alternator Pulley Red (PSP-ENG-118RD) | Subaru WRX 2002-2005 / STI 2004-2006 / Impreza 1993-2011

The Perrin Alternator Pulley Red reduces rotational mass and adds a red performance accent, giving earlier Impreza, WRX, and STI models improved response and upgraded style.

KEY FEATURES

• Lightweight billet aluminum alternator pulley
• Red anodized finish for a motorsport look
• Lower rotating weight compared to stock steel pulley
• Maintains factory pulley diameter for reliable charging
• Direct-fit design for compatible Impreza-based platforms

VEHICLE FITMENT

• Subaru WRX (2002–2005)
• Subaru STI (2004–2006)
• Subaru Impreza (1993–2011, select models)

Perrin products are engineered for precision Subaru performance and long-term reliability.