![JDMuscle Perrin [22-26 WRX] FA/FB Alternator Pulley Black | PSP-ENG-121BK](http://iwujiperformance.com/cdn/shop/files/perrin-22-26-wrx-fafb-alternator-pulley-black-psp-eng-121bk-2259997.jpg?v=1786740177&width=1946)
![JDMuscle Perrin [22-26 WRX] FA/FB Alternator Pulley Black | PSP-ENG-121BK - View 2](http://iwujiperformance.com/cdn/shop/files/perrin-22-26-wrx-fafb-alternator-pulley-black-psp-eng-121bk-4977898.jpg?v=1786740177&width=1946)
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JDMuscle
Perrin [22-26 WRX] FA/FB Alternator Pulley - Black
Perrin [22-26 WRX] FA/FB Alternator Pulley - Black
Regular price
$51.85 USD
Regular price
$61.00 USD
Sale price
$51.85 USD
Quantity
Couldn't load pickup availability
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
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![JDMuscle Perrin [22-26 WRX] FA/FB Alternator Pulley Black | PSP-ENG-121BK](http://iwujiperformance.com/cdn/shop/files/perrin-22-26-wrx-fafb-alternator-pulley-black-psp-eng-121bk-2259997.jpg?v=1786740177&width=1445)
![JDMuscle Perrin [22-26 WRX] FA/FB Alternator Pulley Black | PSP-ENG-121BK - View 2](http://iwujiperformance.com/cdn/shop/files/perrin-22-26-wrx-fafb-alternator-pulley-black-psp-eng-121bk-4977898.jpg?v=1786740177&width=1445)