Perrin Crank Pulley Black 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. By reducing the rotating mass on the crankshaft, this pulley enhances throttle response, horsepower, and torque, making it an ideal choice for Subaru enthusiasts seeking a straightforward performance improvement without extensive modifications. Its compatibility spans popular platforms including the WRX, BRZ, GR86, Crosstrek, Ascent, Forester, Outback, Legacy, and Impreza from recent model years.
Crafted from 6061 T6 billet aluminum and finished with a durable black anodized coating, the Perrin crank pulley combines strength with weight savings. The design features precision-machined grooves that ensure optimal belt engagement with both OEM and aftermarket belts, reducing slippage and wear. The included precision-machined mounting hub guarantees a perfect fit, reflecting Perrin Performance’s commitment to quality and reliability in Subaru-specific upgrades.
By shedding approximately one pound compared to the OEM pulley, this lightweight component effectively reduces the rotational inertia of the crankshaft, which translates to quicker engine revving and improved overall responsiveness. For Subaru owners, this means a more engaging driving experience with noticeable gains in power delivery and throttle feel, all while maintaining OEM-level fitment and durability.
Features & Specifications
This Perrin Performance crank pulley is engineered for Subaru FA and FB engine platforms and features a lightweight design weighing just 2 lbs. Constructed from 6061 T6 billet aluminum with a black anodized finish, it delivers reduced rotational mass for enhanced throttle response and power gains, perfect for enthusiasts seeking a reliable and effective performance upgrade.
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Brand: Perrin Performance
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Product: Perrin Crank Pulley Black
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Part Number: PSP-ENG-106BK
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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: Black Anodized
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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 to improve throttle response and increase horsepower and torque.
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Durability: Made from high-quality 6061 T6 billet aluminum with anodized finish for long-lasting corrosion resistance.
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Fitment: Precision-machined mounting hub ensures exact OEM fitment for a wide range of Subaru FA and FB engine models.
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Quality: CNC machined grooves provide superior belt engagement, reducing slippage and extending belt life.
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Value: Lightweight design equivalent to removing over 100 lbs of vehicle weight in rotational inertia without extensive modifications.
What's Included
- 1× Perrin Crank Pulley Black
- 1× Precision Machined Mounting Hub
- Installation Instructions
Installation & Compatibility
Installation of the Perrin Crank Pulley is moderately straightforward for those with mechanical experience and basic hand tools, but professional installation is recommended to ensure proper torque and alignment. No special tools beyond standard automotive hand tools are typically required. This pulley is compatible only with Subaru models equipped with FA and FB series engines within the specified model years. Verify your vehicle’s engine code and model year before purchase to ensure fitment. No tuning is required after installation, making it a plug-and-play upgrade for improved engine responsiveness.
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Professional Installation: Recommended
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Modifications Required: None
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Verify Compatibility: Confirm engine series (FA/FB) and model year fitment before ordering
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