Perrin Oil Cooler Kit Front Mounted 2015-2021 WRX | Integrated Thermostat | High-Efficiency Oil Cooling System
Overview
The Perrin Oil Cooler Kit for 2015-2021 Subaru WRX is a front-mounted solution designed to reduce engine oil temperatures, maintain consistent horsepower, and extend engine life. This kit is ideal for enthusiasts who push their WRX hard, whether on the street or track, where engine oil temperatures can rise significantly under demanding conditions. By managing oil temperature effectively, this system ensures your engine oil retains its lubricating properties and prevents performance loss due to overheating.
Engineered with a high-efficiency bar and plate style core, the Perrin Oil Cooler maximizes heat dissipation without restricting oil flow, preserving full oil pressure to your engine. The integrated 85°C (185°F) thermostat in the filter adapter ensures oil reaches optimal operating temperature before cooling, preventing overcooling during warm-up. Crafted with durable materials including 304 stainless steel brackets and Aeroquip -10 hoses wrapped in heat-resistant Pyrojacket, this kit balances performance, reliability, and OEM+ quality.
For Subaru WRX owners, maintaining stable oil temperatures is critical to preserving engine health and performance, especially during spirited driving or track use. The Perrin Oil Cooler Kit typically achieves a 15°-20°F drop in oil temperature at high RPMs, helping to avoid oil breakdown and power loss. Its direct bolt-on design integrates seamlessly with your WRX, making it a practical upgrade for those serious about engine longevity and consistent power delivery.
Features & Specifications
This Perrin Oil Cooler Kit is engineered specifically for the 2015-2021 Subaru WRX and features a front-mounted, bar and plate core design with an integrated 85°C thermostat. Constructed from high-quality 304 stainless steel, 6061 T6 aluminum, and Aeroquip -10 hoses with Pyrojacket heat shielding, it delivers efficient oil temperature management for Subaru enthusiasts seeking reliable engine cooling and performance consistency.
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Brand: Perrin Performance
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Product: Perrin Oil Cooler Kit Front Mounted 2015-2021 WRX
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Part Number: PSP-OIL-111
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Fitment: 2015-2021 Subaru WRX
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Material: 304 Stainless Steel, 6061 T6 Aluminum, Aeroquip Hose
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Finish: Brushed Stainless Steel, Natural Aluminum
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Construction: Bar and Plate Core, Welded Brackets, Preassembled Hoses
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Origin: Made in USA
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Core Dimensions: 9.5" x 4.75" x 2.2"
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Core Delta PSI: 3.0/3.5 PSI
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Core BTU/hr Range: 22,000-29,000
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Thermostat Activation Temperature: 85°C / 185°F
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Hose Size: -10 AN
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Hose Construction: AQP Elastomer Tube with Textile Braid Reinforcement and Pyrojacket Heat Shield
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Additional Oil Required: 1 Quart
Key Benefits
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Performance: Maintains consistent horsepower by preventing oil overheating during high RPM operation.
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Durability: Protects engine components by keeping oil within optimal temperature range, reducing wear and extending engine life.
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Fitment: Direct bolt-on mounting brackets utilize existing OEM core support holes for seamless installation.
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Quality: Premium materials including 304 stainless steel and Aeroquip hoses ensure long-lasting reliability under extreme conditions.
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Thermal Efficiency: Bar and plate core design maximizes heat dissipation without restricting oil flow or pressure.
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Ease of Use: Integrated thermostat prevents overcooling and promotes proper oil temperature management from startup.
What's Included
- 1× Perrin Oil Cooler Core (Bar and Plate Style)
- 1× Perrin Filter Adapter with Integrated Thermostat
- 1× Oil Spacer for Thermostat-Filter Assembly
- 2× Preassembled Aeroquip -10 AN Hoses with Pyrojacket Heat Shield
- 1× Set of 304 Stainless Steel Mounting Brackets
- Installation Instructions
Installation & Compatibility
The Perrin Oil Cooler Kit is designed for a straightforward installation using existing mounting points on the 2015-2021 Subaru WRX core support. While the kit includes preassembled hoses and mounting hardware, professional installation is recommended to ensure proper routing and sealing of oil lines. No special tools beyond standard automotive hand tools are required, but care should be taken when handling oil lines and thermostat assembly. This kit requires adding approximately one quart of additional engine oil to compensate for the increased oil volume in the system.
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Professional Installation: Recommended
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific 2015-2021 Subaru WRX model and trim
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