Fitment Information

• Subaru WRX STI (2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021)
• Subaru WRX (2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025)

Specs & Features

• Construction: CNC-machined aluminum body - stronger and more heat/corrosion resistant than plastic OEM reservoirs.
• Capacity / Size: ~ 36 cubic-inch internal volume (adequate as expansion/overflow reservoir for typical cooling systems)
• Finish / Variants: Multiple finishes (color options) - including Black (BK), Red (RD), Neon Yellow (NY), Hyper Pink (HP) depending on SKU.
• Design / Benefits: Compact, universal-fit design - frees up clearance, especially useful when engine bay has aftermarket intercooler piping or other mods; integrated lid cap; more durable than OEM plastic; better heat/vibration resistance & reduces risk of cracks/leaks under stress or ageing.
• Installation: Direct bolt-on for compatible vehicles; universal-bracket mounting allows flexible placement in engine bay without major modifications.
• Warranty: Comes with a warranty from manufacturer (standard for this model line) covering defects in materials/workmanship.

What's included?

• (1) PERRIN Coolant Overflow Tank
• (1) 5/16" Silicone Hose, 55 inches
• (3) Mounting Brackets
• Hardware for Installation
• Warranty & Instructions
  

Product Description

The PERRIN Coolant Overflow Tank replaces the OEM plastic coolant-overflow/expansion reservoir with a CNC-machined aluminum tank - sturdier, more heat-resistant, and more durable under pressure or extreme conditions.

It’s designed for engines/systems where the stock overflow tank may crack, leak, or not provide enough clearance - often useful if you have aftermarket intercooler piping or other modifications that crowd the engine bay.

Redline360 sells only genuine and authentic PERRIN Performance products.