Perrin [22-26 WRX, 14-18 Forester XT, 19-25 Ascent, 21-25 Legacy XT, 21-25 Outback XT/Wilderness] FA/FB Alternator Pulley - Black

Remove a future failure point and free up power with the PERRIN FA/FB alternator pulley in black — a precision-machined, lightweight replacement for the OEM clutch-style alternator pulley on the 2022-2026 WRX.

• PERRIN part number: PSP-ENG-121BK (Black)
• Replaces the OEM clutch-style alternator pulley, which can fail over time and cause knocking noises, battery charging issues, belt wear, and jumpy belts
• Weighs just 0.20 lbs — lighter than the OEM pulley for improved throttle response, horsepower, and torque
• Precision-machined grooves tightly sync with all OEM and aftermarket belts; designed to match the PERRIN crank pulley
• Machined from 6061 T6 billet aluminum with a black anodized finish, laser etched for increased belt life and a precision fit