Perrin Coolant Overflow Tank Neon Yellow 02-25 WRX / 04-21 STI / 13-25 BRZ / GR86 / FR-S / GT86

Perrin Coolant Overflow Tank Neon Yellow 02-25 WRX / 04-21 STI / 13-25 BRZ / GR86 / FR-S / GT86 | Lightweight Aluminum | Coolant Expansion Reservoir

Overview

The Perrin Coolant Overflow Tank is a direct replacement for the factory plastic reservoir, designed specifically for Subaru WRX, WRX STI, BRZ, GR86, FR-S, and GT86 models spanning 2002 through 2025. This aluminum coolant expansion tank improves durability and heat resistance while adding a vibrant neon yellow finish to brighten your engine bay. It’s ideal for enthusiasts looking to upgrade worn or cracked OEM tanks with a more reliable and visually striking component.

Engineered from high-grade aluminum and finished with a corrosion-resistant powder coat, this overflow tank reflects Perrin’s commitment to quality and performance. The design maintains compatibility with the factory coolant cap and includes universal mounting brackets and a silicone hose for flexible installation. Its compact size provides increased clearance for aftermarket intercoolers, turbo piping, or other engine bay modifications, making it a practical choice for performance builds.

Beyond aesthetics, this tank offers enhanced coolant capacity and long-term reliability, crucial for maintaining optimal engine temperatures during spirited driving or track use. Subaru owners will appreciate the combination of OEM-level fitment, improved material strength, and the subtle visual upgrade that complements any engine bay setup.

Features & Specifications

This Perrin Coolant Overflow Tank is engineered for Subaru WRX, STI, BRZ, GR86, FR-S, and GT86 platforms and features a lightweight aluminum construction with a neon yellow powder coat finish. Constructed from high-grade aluminum, it delivers superior durability and heat resistance for Subaru enthusiasts seeking a reliable and stylish coolant reservoir upgrade.

• Brand: Perrin Performance
• Product: Coolant Overflow Tank Neon Yellow
• Part Number: ASM-ENG-505NY
• Fitment: 02-25 WRX / 04-21 STI / 13-25 BRZ / GR86 / FR-S / GT86
• Material: Aluminum
• Finish: Neon Yellow Powder Coat
• Construction: Welded Aluminum
• Origin: Not specified

Key Benefits

• Durability: Aluminum construction resists cracking and heat damage common with OEM plastic tanks
• Fitment: Direct replacement design uses factory coolant cap and includes universal mounting hardware for easy installation
• Performance Compatibility: Compact size increases clearance for aftermarket intercoolers and turbo piping
• Corrosion Resistance: Powder-coated finish protects against rust and maintains appearance over time
• Reliability: Enhanced coolant capacity supports stable engine temperatures during aggressive driving
• Aesthetics: Neon yellow finish adds a bold, OEM+ visual upgrade to the engine bay

What's Included

• 1× Perrin Coolant Overflow Tank Neon Yellow
• 1× 5/16" Silicone Hose, 55 inches
• Mounting Bracket Hardware for Installation
• Installation Instructions

Installation & Compatibility

Installation of the Perrin Coolant Overflow Tank is straightforward and designed to be a direct replacement for the factory reservoir, making it a DIY-friendly upgrade for most Subaru enthusiasts. The included universal mounting brackets and silicone hose provide flexibility to fit various engine bay layouts without modification. No special tools beyond standard hand tools are required. This tank retains compatibility with the factory coolant cap, ensuring a seamless swap without additional parts. Always verify fitment for your specific model year and trim to ensure proper installation.

• Professional Installation: Recommended for those unfamiliar with coolant system work
• Modifications Required: None
• Verify Compatibility: Confirm fitment for your specific year and model before purchase

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