Perrin Performance Alternator Pulley

Part #: PSP-ENG-122BK

Overview

The Perrin Alternator Pulley is a high-quality upgrade designed for enthusiasts seeking improved engine responsiveness and a more refined engine bay appearance in their 2022+ Subaru BRZ or Toyota GR86. Crafted from durable materials, this pulley replaces the factory component to help reduce rotational mass, supporting smoother engine operation and potentially enhancing accessory drive efficiency. Its sleek design not only contributes to a cleaner engine bay aesthetic but also offers a reliable, long-lasting performance upgrade for your vehicle. This pulley is ideal for drivers who want to optimize their vehicle’s accessory drive system, whether for daily driving, spirited canyon runs, or track days. By reducing parasitic drag, it can support quicker throttle response and more consistent accessory operation, contributing to an overall more engaging driving experience.

Key Features

This alternator pulley features a precision-machined aluminum construction for lightweight strength and durability. Its design minimizes rotational inertia, which can help improve engine response and reduce load on the alternator. The pulley is engineered for a direct bolt-on installation, ensuring a straightforward upgrade without the need for additional modifications. Its black anodized finish provides corrosion resistance and a sleek, OEM-like appearance that complements modern engine bays. The design focuses on functional performance, durability, and aesthetic enhancement, making it a practical upgrade for performance-minded owners.

Construction & Design

Manufactured from high-grade aluminum, the pulley is machined to tight tolerances for a perfect fit and smooth operation. The black anodized coating not only enhances corrosion resistance but also maintains a stylish look that resists fading over time.

Driving Feel & Feedback

While primarily a performance upgrade, the reduced rotational mass can contribute to a slightly more responsive engine feel, especially during acceleration and deceleration. The pulley helps maintain consistent accessory operation, supporting a smooth and reliable driving experience.

Installation & Fitment

Designed as a direct replacement, this pulley installs easily onto the factory alternator with no additional modifications required. Proper fitment should be verified against vehicle specifications and part number.

What’s Included

The package includes the aluminum alternator pulley and necessary hardware for installation.

Ideal For

This upgrade is perfect for Subaru BRZ and Toyota GR86 owners looking to enhance engine response, improve accessory drive efficiency, and add a subtle performance aesthetic to their engine bay. It’s suitable for both daily drivers and performance enthusiasts seeking a reliable, bolt-on upgrade.