Heating and Cooling› Overflow Tanks and Catch Cans

Mishimoto

0814 SUBARU WRX ROCKSTAR ALUMINUM COOLANT EXPANSION TANK

$197.79

SKU: M00C MMRT-WRX-08ERKST

In Stock
In Stock
Ships by Jun 17
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Mishimoto Rockstar Aluminum Coolant Expansion Tank is a direct-fit replacement for the factory unit in your 2008-2014 Subaru WRX. Constructed from 100% aluminum with fully-welded seams, it offers increased durability. This tank provides 22% greater coolant capacity than the stock plastic reservoir.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandMishimoto
Part NumberM00C MMRT-WRX-08ERKST

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy