Perrin Crank Pulley Blue 2022-2025 WRX / 2022-2025 BRZ / 2022-2025 GR86 / 2017-2025 Crosstrek / 2019-2025 Ascent / 2019-2025 Forester / 2020-2025 Outback / 2020-2025 Legacy / 2017-2025 Impreza | Lightweight 6061 T6 Aluminum | Performance Crank Pulley
Overview
The Perrin Crank Pulley is a precision-engineered lightweight upgrade designed for a broad range of Subaru models equipped with FA and FB series engines from 2017 to 2025. This crank pulley replaces the heavier OEM unit with a billet aluminum component that reduces rotational mass on the crankshaft, directly improving throttle response, horsepower, and torque. It’s an ideal part for Subaru enthusiasts looking to extract more performance from naturally aspirated and turbocharged engines alike without complex modifications.
Manufactured from 6061 T6 billet aluminum, the pulley is CNC machined for exacting tolerances and anodized in a vibrant blue finish that resists corrosion and wear. The design features precision-machined grooves that ensure perfect belt alignment and compatibility with all OEM and aftermarket belts, enhancing belt life and reliability. Perrin’s engineering approach balances weight reduction with durability, making this pulley a dependable upgrade for daily drivers and spirited weekend cars.
By shedding approximately one pound from the crankshaft’s rotating mass, this pulley effectively simulates removing over 100 pounds of vehicle weight in terms of engine responsiveness. This translates to quicker revving and improved engine efficiency, which Subaru owners will appreciate in both street and performance driving scenarios. The included precision-machined mounting hub simplifies installation, making it a practical upgrade for those focused on enhancing their Subaru’s driving dynamics.
Features & Specifications
This Perrin Performance Crank Pulley is engineered for Subaru WRX, BRZ, GR86, Crosstrek, Ascent, Forester, Outback, Legacy, and Impreza models from 2017 to 2025. Constructed from lightweight 6061 T6 billet aluminum with a durable anodized blue finish, it delivers reduced rotational mass and improved throttle response for Subaru enthusiasts seeking enhanced engine performance.
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Brand: Perrin Performance
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Product: Perrin Crank Pulley Blue
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Part Number: PSP-ENG-106BL
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Fitment: 2022-2025 WRX, 2022-2025 BRZ, 2022-2025 GR86, 2017-2025 Crosstrek, 2019-2025 Ascent, 2019-2025 Forester, 2020-2025 Outback, 2020-2025 Legacy, 2017-2025 Impreza (FA/FB engines)
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Material: 6061 T6 Billet Aluminum
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Finish: Anodized Blue
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Construction: CNC Machined
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Origin: Not specified
Key Benefits
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Performance: Reduces crankshaft rotational mass by 1 lb, improving throttle response and engine acceleration.
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Durability: Made from high-grade 6061 T6 billet aluminum with anodized finish for long-lasting corrosion resistance.
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Fitment: Precision machined grooves ensure perfect belt alignment with OEM and aftermarket belts, preventing slippage.
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Quality: CNC machining guarantees tight tolerances and reliable mounting with included precision hub.
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Value: Lightweight design simulates removing over 100 lbs of vehicle weight in terms of engine responsiveness without costly modifications.
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Aesthetics: Striking blue anodized finish adds a clean, performance-oriented look under the hood.
What's Included
- 1× Perrin Crank Pulley Blue
- 1× Precision Machined Mounting Hub
- Installation Instructions
Installation & Compatibility
Installation of the Perrin Crank Pulley is straightforward for experienced enthusiasts with basic hand tools, but professional installation is recommended to ensure proper torque and belt alignment. No special tools beyond standard automotive hand tools are required. This pulley fits only Subaru models equipped with FA and FB series engines within the specified years, including select Wilderness and XT trims. Verify your vehicle’s engine code and model year before purchase. No engine tuning is required after installation, making it a simple bolt-on upgrade that enhances performance without ECU modifications.
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Professional Installation: Recommended
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Modifications Required: None
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Verify Compatibility: Confirm engine series and model year fitment before ordering
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