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  • Direct fit for the 2008-2014 Subaru WRX and 2005-2009 Subaru Legacy GT
  • 22-percent greater capacity than stock plastic expansion tank
  • All-aluminum, fully welded construction for maximum durability during repeated cold and hot transitions
  • Leak-free welded CNC barb fittings
  • Fits with Mishimoto Subaru WRX Front-Mount Intercooler Kit
  • Fits with stock and Mishimoto radiator caps
  • Polished aluminum finish matches the Mishimoto Subaru WRX/STI Performance Aluminum Radiator
  • Mishimoto Lifetime Warranty


The all-aluminum, fully welded construction of the Mishimoto expansion tank does more than dress up your engine bay. This tank also offers increased durability during repeated cold and hot transitions, and leak-free welded CNC barb fittings.


In addition, the Mishimoto aluminum coolant expansion tank offers a 22-percent increase in fluid capacity over the factory expansion tank. This direct-fit expansion tank upgrade is compatible with the stock Subaru and Mishimoto radiator caps and the Mishimoto Lifetime Warranty so you can have peace of mind!!



2008-2014 Subaru WRX
2005-2009 Subaru Legacy GT
2005-2009 Subaru Outback XT
2009-2014 Subaru Forester XT


NOTE- This expansion tank may not fit with the stock air intake "S" hose, an aftermarket intake is recommended for the best fit.




Mishimoto Aluminum Coolant Expansion Tank 2008-2014 WRX

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