Perrin Water Pump Pulley

2013–2016 Scion FR-S, 2013–2020 Subaru BRZ, 2017–2020 Toyota 86, 2022–2026 Toyota GR86 & Subaru BRZ 2.4L

Part #: PSP-ENG-113BK

Overview

The Perrin Water Pump Pulley is a precision-engineered upgrade designed to reduce rotational mass on your engine’s accessory drive system. Specifically crafted for the Toyota GR86 and Subaru BRZ 2.4L models from 2013 through 2026, this lightweight pulley replaces the heavier OEM component to free up horsepower and improve throttle response. Enthusiasts seeking a subtle yet effective performance enhancement will appreciate the immediate feel of reduced engine load and smoother acceleration.

By lowering the weight of the water pump pulley, Perrin helps your engine spin more freely, translating to improved efficiency and a more responsive driving experience without compromising reliability or durability.

Key Features

This water pump pulley offers a combination of lightweight design and durable construction, making it an ideal upgrade for performance-minded drivers:

• Constructed from high-quality 6061-T6 billet aluminum for strength and reduced weight
• Weighs only 0.48 lbs, saving 0.28 lbs compared to the OEM pulley (0.76 lbs)
• Black anodized finish for corrosion resistance and a sleek appearance
• Direct bolt-on replacement with no modifications required
• Designed to maintain proper water pump function and engine cooling
• Compatible with multiple models: 2013–2016 Scion FR-S, 2013–2020 Subaru BRZ, 2017–2020 Toyota 86, and 2022–2026 Toyota GR86 & Subaru BRZ 2.4L
• Backed by a 5-year warranty covering defects in material and workmanship

Construction & Design

The Perrin Water Pump Pulley is precision-machined from 6061-T6 billet aluminum, a material known for its excellent strength-to-weight ratio and resistance to fatigue. The pulley undergoes a black anodizing process that not only enhances its visual appeal but also provides a durable protective coating against corrosion and wear. This meticulous construction ensures the pulley withstands the rigors of daily driving and spirited performance use while maintaining consistent operation.

Its reduced mass decreases the rotational inertia on the engine’s accessory belt system, allowing the engine to rev more freely and respond quicker to throttle inputs. The pulley’s dimensions and mounting points are engineered to match OEM specifications, ensuring seamless integration without compromising the water pump’s reliability or cooling efficiency.

Performance & Sound

By lightening the rotating mass on the engine’s accessory drive, the Perrin Water Pump Pulley contributes to a subtle but noticeable improvement in throttle response and engine responsiveness. While it does not directly increase horsepower, the reduction in parasitic drag allows the engine to operate more efficiently. This upgrade is particularly beneficial for drivers who have other performance modifications or who seek a more connected driving feel.

Installation & Fitment

Installation of the Perrin Water Pump Pulley is straightforward and designed as a direct replacement for the factory pulley. No special tools or modifications are necessary, making it suitable for both professional installers and experienced enthusiasts. The pulley fits perfectly on the water pump shaft of the specified Toyota and Subaru models, ensuring proper alignment and belt tension after installation.

It is compatible with the following vehicles equipped with the 2.4L engine:

• 2013–2016 Scion FR-S
• 2013–2020 Subaru BRZ
• 2017–2020 Toyota 86
• 2022–2026 Toyota GR86
• 2022–2026 Subaru BRZ

What's Included

• One Perrin Water Pump Pulley (Black, anodized finish)
• Installation instructions
• Warranty information (5-year limited warranty)

Ideal For

This pulley is ideal for automotive enthusiasts and drivers who want to enhance their Toyota GR86 or Subaru BRZ’s engine efficiency and throttle response without extensive modifications. It suits those looking for a reliable, durable, and lightweight upgrade that complements other performance parts and supports spirited driving on street or track.

PERRIN Performance is an enthusiast-focused brand known for bolt-on performance and chassis upgrades for platforms like Subaru and other sport compacts. Their catalog spans intake and turbo support, drivetrain and shifter feel, and handling accessories—built for drivers who want tighter response and track-ready reliability without sacrificing daily drivability.