Mishimoto Aluminum Coolant Expansion Tank | 2002-2007 Subaru WRX, and 2004-2017 Subaru WRX STI (MMRT-WRX-01)

Mishimoto
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Aluminum Coolant Expansion Tank by Mishimoto

Add some additional reliability and engine bay styling with the Mishimoto Subaru WRX 2002-2007 / STI 2004-2016 Aluminum Coolant Expansion Tank. Stock coolant expansion tanks are prone to failure after years of constant temperature variations. The Mishimoto tank is constructed from durable, TIG-welded aluminum with barbed fittings for optimal durability and longevity. This expansion tank provides a 50% increase in capacity compared to the stock unit. It features a polished silver or anodized black finish that will look great in your engine bay, and it matches the Mishimoto Subaru WRX/STI Performance Aluminum Radiator! The Mishimoto Coolant Expansion Tank is engineered for perfect fitment in the 2002-2007 WRX and the 2004-2016 STI! As with all our products, this expansion tank includes the Mishimoto Lifetime Warranty

Features

  • 50% greater capacity than stock plastic expansion tank
  • 100% aluminum, fully-welded construction for maximum durability during repeated cold and hot transitions
  • Leak-free welded barb fittings
  • Fits with stock and Mishimoto radiator caps
  • Polished aluminum finish matches the Mishimoto Subaru WRX/STI Performance Aluminum Radiator
  • Mishimoto Lifetime Warranty

Specifications

  • Overall Height: 3.85"
  • Overall Width: 6.25"
  • Capacity: 776 cc
  • Engine Codes: EJ205, EJ255, EJ257, EJ207
  • Material: Aluminum
  • Color: Silver or Black
  • Baffled: No

Applications

  • 2002-2007 Subaru Impreza WRX
  • 2004-2017 Subaru Impreza WRX STi

What's In The Box?

  • Aluminum Expansion Tank
  • Mishimoto Radiator Cap
  • Lifetime Warranty

Manual Instructions

Customer Reviews

Based on 3 reviews
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c
christine l Zoutendam
Works amazing looks great

Had a leak on stock expansion tank and haven’t had any problems since installing the mishimoto one

S
Steve
Shiny

Just got the coolant tank in polished much better than oem plastic

J
Jonathan Woodhead
Great Product!

Much better than the factory version and not nearly as easy to break (wasn't planning on buying this haha). Overall a great product and cleans up the engine bay.