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Perrin Alternator Pulley Red 2015-2024 WRX / 2014-2018 Forester XT / 2019-2022 Ascent / 2021-2022 Legacy - PSP-ENG-121RD - Subimods.com

Perrin Alternator Pulley Red 2015-2025 WRX / 2014-2018 Forester XT / 2019-2025 Ascent / 2021-2025 Legacy / 2022-2025 Outback Wilderness

$51.85
$61.00
$61.00 - $61.00
$61.00
$51.85 - $51.85
$51.85
-15% -15%
15 In Stock, Usually Ships within 1-2 Business Days
SKU PSP-ENG-121RD
by Perrin Performance

DETAILS

Upgrade your Subaru’s engine efficiency and performance with the PERRIN Alternator Pulley. Crafted from precision-machined 6061-T6 aluminum, this lightweight pulley reduces rotational mass compared to the OEM steel unit, allowing your engine to rev more freely and respond quicker.

Designed as a direct replacement for the factory pulley, installation is simple and requires no additional modifications. Whether you're building for the track or enhancing your daily driver, the PERRIN Alternator Pulley delivers a subtle yet effective performance boost while maintaining full charging system functionality.

Features:

  • CNC-machined 6061-T6 aluminum construction

  • Durable anodized finish in signature PERRIN colors

  • Reduces rotational mass for improved throttle response

  • Direct fit – no tuning or modifications required

  • Compatible with OEM and aftermarket belts

Note: Fits 2021-2025 Legacy and Legacy XT Models

Installation Instructions

Customer Reviews

Based on 5 reviews
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Dylan Zeno
Very simple install

Disconnect battery to reduce risk of shock also need to keep the alternator from spinning which can be done by taking it off completely for better control or having counter resistance to be able to loosen the center bolt.

Dylan,

Thank you for your 5 Star Review. We are glad to know the alternator cover is a great addition. We appreciate your reminder to prioritize safety during installation. Enjoy!

Regards,

H
Heather Ann Mae
Looks good

Looks good in the engine bay, adds more color

Will,

Thank you for taking the time to leave a 5 Star Review! We are pleased you are happy with the look and added color the alternator pulley provides to your engine bay.

Regards,

J
Jesse Baumann
Use a swivel extension

You can tighten the alternator pulley bolt easily by using a swivel extension on the 24mm socket

User picture

Jesse,

Thank you for taking the time to leave a 5 Star Review for the Perrin Alternator Pulley. We appreciate your feedback and are glad to hear that using a swivel extension made tightening the bolt easier. Happy driving!

Regards,

R
Ryan Dean
Perrin Alternator pulley

Pretty easy install and looks great and it’s a lot lighter.
Thanks Subiemods for the fast shipping.

User picture

Ryan,

We appreciate your 5 Star Review of the Perrin Alternator Pulley and for choosing Subimods! It is great to hear it was easy to install and are pleased with how light and how great this pulley looks! Enjoy!

Regards,

J
J.S.

Perfect for increased throttle response.

Jason,

We appreciate your 5 Star Review of the Perrin Alternator Pulley in Red! We are glad to hear that the pulley has been perfect for enhancing throttle response. Perrin's performance parts aim to improve the driving experience, and we are pleased that the alternator pulley has met your expectations. Your feedback is appreciated, and we are delighted that you are satisfied with the increased throttle response from the alternator pulley! Enjoy!

Regards,

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