Aluminum Coolant Overflow Tank - Polished

• 2008–2021 Subaru | WRX STI
• 2008–2021 Subaru | WRX

The Mishimoto Aluminum Coolant Overflow Tank in Polished is a direct-fit coolant overflow tank for the 2008-2021 Subaru WRX and Subaru WRX STI that replaces the stock plastic tank, which is prone to failure due to repeated hot and cold cycles. The tank is constructed from durable, TIG-welded aluminum, includes a CNC-machined dipstick for easily checking coolant levels, installs in under 30 minutes, and fits with the stock or Mishimoto WRX / WRX STI radiators.

• Part number: MMRT-STI-08
• Direct fit for the 2008-2021 Subaru WRX and 2008-2021 Subaru WRX STI
• Installs in under 30 minutes
• All-aluminum, fully welded construction for maximum durability during repeated temperature transitions
• Material: 6061 Aluminum
• CNC-machined dipstick allows for proper cold coolant levels
• Polished finish on this listing; includes Mishimoto fill cap
• Fits with the stock or Mishimoto WRX / WRX STI radiators
• Mishimoto Lifetime Warranty

Frequently Asked Questions

Does this overflow tank fit my WRX or WRX STI?
Yes, if your vehicle is a 2008-2021 Subaru WRX or Subaru WRX STI. The tank is a direct fit, installs in under 30 minutes, and fits with the stock or Mishimoto radiators.

What is included in the box?
The box includes (1) aluminum expansion tank, (1) CNC-machined dipstick, and (1) Mishimoto oil fill cap, covered by the Mishimoto Lifetime Warranty.

What should I check after installation?
After a few hot and cold cycles, check the dipstick on the expansion tank to confirm the proper coolant level.

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