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Mishimoto Mishimoto Subaru 02-07 WRX/ 04-14 STI Aluminum Coolant Expansion Tank - Black
Mishimoto Mishimoto Subaru 02-07 WRX/ 04-14 STI Aluminum Coolant Expansion Tank - Black
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Mishimoto Subaru 02-07 WRX/ 04-14 STI Aluminum Coolant Expansion Tank - Black

Mishimoto
MISMMRT-WRX-01EBK
748354019520
Coolant Reservoirs
20+ Units In Stock - Ships Next Business Day
$ 208.00 $ 188.95
$ 188.95

SKU: MMRT-WRX-01EBK | UPC: 748354019520

Mishimoto Subaru 02-07 WRX/ 04-16 STI Aluminum Coolant Expansion Tank - Black

Upgrade your Subaru's cooling system with the Mishimoto Aluminum Coolant Expansion Tank designed for 2002-2007 WRX and 2004-2016 STI models. This tank replaces the failure-prone stock plastic unit with TIG-welded aluminum for lasting durability under extreme temperatures. It delivers 50% more capacity at 1.8 liters for better coolant circulation and pairs perfectly with the Mishimoto aluminum radiator.

Key Features

  • Aluminum Construction: TIG-welded aluminum resists cracking and corrosion from heat cycles unlike stock plastic tanks
  • Increased Capacity: 1.8L volume provides 50% more coolant storage to maintain optimal engine temperatures during track or street use
  • Black Anodized Finish: Durable black coating enhances engine bay appearance and resists fading or chipping
  • Barbed Fittings: Secure OEM-style fittings ensure leak-free connections and easy hose installation
  • Direct Bolt-On Fit: Engineered for seamless replacement on WRX and STI with included mounting hardware and cap

Product Notes

  • Direct replacement requires no modifications to engine bay or coolant lines
  • Pair with Mishimoto radiator for complete cooling upgrade
  • Product weight is 1.41 lbs for lightweight performance

Installation Notes

  • Professional installation recommended.
  • Bolt-on design completes in under 30 minutes with basic tools
  • Includes all necessary brackets and laser-etched cap for OEM match

This Part Fits

Year Make Model Submodel
2005-2006 Saab 9-2X Aero
2004-2006 Subaru Baja Turbo
2008 Subaru Forester Sports 2.5 XT
2004-2005 Subaru Forester XT
2006-2008 Subaru Forester XT Limited
2005 Subaru Forester XT Premium
2002-2007 Subaru Impreza WRX
2006-2007 Subaru Impreza WRX Limited
2004-2014 Subaru Impreza WRX STI
2007,2011-2014 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition
2006-2007 Subaru Impreza WRX TR
2015-2016 Subaru WRX STI Base
2015 Subaru WRX STI Launch Edition
2015-2016 Subaru WRX STI Limited

Why Choose Mishimoto?

  • Proven track record in motorsports cooling components
  • Lifetime warranty covers defects in materials and workmanship
  • Precision CNC-machined for exact OEM fitment every time

Frequently Asked Questions

  • Q: Does this fit 2015-2016 WRX STI models?
    A: Yes it fits 2015-2016 WRX STI Base Launch Edition and Limited with direct bolt-on installation
  • Q: What material and finish does the tank use?
    A: Constructed from TIG-welded aluminum with black anodized finish for corrosion resistance and style
  • Q: What warranty is included?
    A: Mishimoto Lifetime Warranty protects against manufacturing defects for peace of mind

Shipping & Handling

  • Method: UPS Ground or USPS Priority
  • Availability: In stock - ships same or next business day
  • Packaging: Secure foam-protected box 10in x 6in x 6in
  • Weight: 2 lbs shipping weight

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Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

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