Perrin Water Pump Pulley Blue 15-21 WRX / 14-18 Forester XT / 17-23 Impreza / 18-20 Crosstrek | Lightweight 6061-T6 Aluminum | Cooling System Upgrade
Overview
The Perrin Water Pump Pulley is a precision-engineered upgrade designed to enhance the cooling system efficiency of select Subaru models including the 2015-2021 WRX, 2014-2018 Forester XT, 2017-2023 Impreza, and 2018-2020 Crosstrek. By replacing the factory pulley with this lightweight billet aluminum component, Subaru enthusiasts can reduce rotational mass, which directly improves engine response and overall efficiency. This pulley is ideal for those looking to optimize their engine’s accessory drive without compromising reliability or fitment.
Crafted from 6061-T6 billet aluminum, the pulley is CNC machined to exacting tolerances and finished with a durable anodized blue coating that resists corrosion and wear. Perrin’s design philosophy focuses on combining functional performance gains with OEM-level quality and durability, ensuring that this pulley not only performs but also lasts under demanding conditions. The direct OEM replacement fitment means it integrates seamlessly with factory and most aftermarket accessory belts, simplifying installation.
For Subaru owners, this pulley offers tangible benefits beyond aesthetics. The 0.28-pound weight reduction compared to the OEM pulley decreases parasitic drag on the engine, allowing for smoother accessory operation and potentially improved throttle response. This subtle but effective upgrade supports the overall performance and reliability of your Subaru’s cooling system, making it a practical enhancement for daily drivers and enthusiasts alike.
Features & Specifications
This Perrin Water Pump Pulley is engineered for Subaru WRX, Forester XT, Impreza, and Crosstrek models, featuring lightweight 6061-T6 billet aluminum construction. Finished in anodized blue, it delivers reduced rotational mass and enhanced engine efficiency for Subaru enthusiasts seeking a reliable and stylish cooling system upgrade.
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Brand: Perrin Performance
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Product: Water Pump Pulley Blue
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Part Number: PSP-ENG-111BL
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Fitment: 15-21 WRX / 14-18 Forester XT / 17-23 Impreza / 18-20 Crosstrek
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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 rotational mass by 0.28 lbs, decreasing parasitic drag for improved engine response.
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Durability: Anodized finish protects against corrosion and wear, ensuring long-lasting reliability.
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Fitment: Direct OEM replacement compatible with factory and most aftermarket accessory belts for straightforward installation.
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Aesthetics: Vibrant blue anodized finish adds a clean, high-quality look to the engine bay.
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Quality: Precision CNC machining from 6061-T6 billet aluminum guarantees consistent performance and strength.
What's Included
- 1× Perrin Water Pump Pulley Blue
- Installation instructions
Installation & Compatibility
Installation of the Perrin Water Pump Pulley is straightforward and designed to be a direct OEM replacement, requiring no special tools or modifications. This makes it a DIY-friendly upgrade for enthusiasts comfortable with basic engine bay work. The pulley fits factory accessory belts as well as most aftermarket belts, but it is important to verify compatibility with your specific vehicle model and belt setup before installation. No tuning is required for this part, and it integrates seamlessly with the existing cooling system components.
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Professional Installation: DIY-Friendly
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific year and trim level
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