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

Add some additional reliability and engine bay styling with the Mishimoto Subaru WRX/STI 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-percent 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 and matches the Mishimoto 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, ensuring superior product quality and craftsmanship.

-   100-percent aluminum, fully-welded construction for maximum durability during repeated cold and hot transitions
-   50-percent greater capacity than stock plastic expansion tank
-   Leak-free welded barb fittings

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

2004-2007

Subaru

Impreza

WRX STI

2007

Subaru

Impreza

WRX STI Limited

2006-2007

Subaru

Impreza

WRX TR

## Details

- **Price:** 285.08 CAD
- **Vendor:** Mishimoto
- **Type:** Coolant Reservoirs

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 285.08 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
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- Photo - Close Up
- User 6
- User 2

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/mishimoto-subaru-02-07-wrx-04-14-sti-wrx-sti-aluminum-coolant-expansion-tank)
> Updated: 2026-06-28