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Upgrade your performance and avoid future alternator failure points with the Perrin Red Alternator Pulley 2015-2023 WRX. This pulley, designed spec...

Experience improved engine performance with the Perrin Blue Alternator Pulley. This lightweight, high-quality pulley weighs just 11.6lbs, reducing ...

The PERRIN Alternator Pulley mirrors Perrin's signature design and weighs in at an impressively low 0.116 lbs. This outcome is lighter than the OEM...

Constructed from high-quality materials, the PERRIN Alternator Pulley mimics the signature Crank Pulley design while reducing rotational weight. At...

Constructed from high-quality materials, the PERRIN Alternator Pulley mimics the signature Crank Pulley design while reducing rotational weight. At...

This PERRIN Alternator Pulley boasts a light weight of only .116lbs, lighter than an OEM alternator pulley, and matches our signature Crank Pulley ...

Constructed from high-quality materials, the PERRIN Alternator Pulley offers a matching signature crank pulley design and decreases rotational weig...

Here, you are looking at the Perrin Performance Water Pump Pulley.Weighing in at 0.48 lbs, this pulley shaves 0.28 lbs off of the vehicle from the ...

Here, you are looking at the Perrin Performance Water Pump Pulley.Weighing in at 0.48 lbs, this pulley shaves 0.28 lbs off of the vehicle from the ...

Here, you are looking at the Perrin Performance Water Pump Pulley.Weighing in at 0.48 lbs, this pulley shaves 0.28 lbs off of the vehicle from the ...

Perrin's Lightweight Water Pump Pulley - Red is designed to reduce the weight of rotating engine parts, resulting in improved throttle response, in...

Perrin's Lightweight Water Pump Pulley is designed to reduce the weight of rotating engine parts, resulting in improved throttle response, increase...

Perrin's Lightweight Water Pump Pulley is designed to reduce the weight of rotating engine parts, resulting in improved throttle response, increase...

The PERRIN Water Pump Pulley reduces the weight of your engine components, unlocking potential power. This pulley weighs just .48lbs - a reduction ...

Experience improved performance with Perrin's 15-21 Subaru WRX Lightweight Water Pump Pulley. Lighter than the OEM pulley by 0.28lbs, it frees up p...

By replacing the OEM pulley with this aftermarket pulley, which weighs only 0.48 lbs compared to the OEM's 0.28 lbs, the vehicle can benefit from ...

This Perrin 2022 BRZ/86 / 19-22 Subaru WRX Lightweight Crank Pulley is specially designed for maximum performance. It comes with a lightweight pull...

The PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power. True weight savings can be felt with every blip of the...

The PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power. True weight savings can be felt with every blip of the...

The PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power. True weight savings can be felt with every blip of the...

The PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power. True weight savings can be felt with every blip of the...

The PERRIN Lightweight Crank Pulley lightens up your rotating engine parts to free up power. True weight savings can be felt with every blip of the...

This Red crank pulley from Perrin has been precisely designed to reduce rotational mass for rapid revs, better throttle response, and improved perf...

This Perrin crank pulley has been optimized to reduce engine rotational mass, promoting faster revs and enhanced response while maximizing engine p...