![Perrin [22-26 WRX] FA/FB Alternator Pulley Red | PSP-ENG-121RD Turn14 rattle-free installation](https://cdn.shopify.com/s/files/1/0023/6109/8353/files/perrin-22-26-wrx-fafb-alternator-pulley-red-psp-eng-121rd-7103615.jpg?v=1783650545)
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Ships within 48 hours · Estimated delivery Jul 26 - Jul 31
rattle-free installation
Up to 4 EGT inputs with fuel trim
Replacement is straightforward and inexpensive
✨ Interior preservation
Configuration: Pair with integrated switch and bezel
Perrin [22-26 WRX] FA/FB Alternator Pulley Red | PSP-ENG-121RD Turn14 rattle-free installationPREVENT FUTURE FAILURESubaru models with OEM clutch style alternator pulleys may fail over time. This failure can lead to knocking noises, battery charging issues, belt wear, and cause belts to become extra jumpy. The PERRIN Alternator Pulley removes this future failure point. DECREASE ROTATIONAL MASSPERRIN Alternator Pulleys weigh just 0. 20 lbs., which is lighter than the OEM alternator pulley. Throttle response, horsepower, and torque are all
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