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Mishimoto Subaru 2002-2007 WRX/ 2004-2014 STI WRX/STI Aluminum product view

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Mishimoto MMRT-WRX-01E installed angle on vehicle

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Mishimoto Subaru 2002-2007 WRX/ 2004-2014 STI WRX/STI Aluminum core and end tank detail

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Mishimoto Subaru 2002-2007 WRX/ 2004-2014 STI WRX/STI Aluminum packaging and included hardware

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Mishimoto 2002-2008 application close-up of MMRT-WRX-01E

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Mishimoto Subaru 2002-2007 WRX/ 2004-2014 STI WRX/STI Aluminum mounting points detail

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Mishimoto Subaru 2002-2007 WRX/ 2004-2014 STI WRX/STI Aluminum finish and construction detail

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Mishimoto Subaru 2002-2007 WRX/ 2004-2014 STI WRX/STI Aluminum inlet and outlet close-up

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Mishimoto Subaru 2002-2007 WRX/ 2004-2014 STI WRX/STI Aluminum compared with stock packaging

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STI Aluminum Radiator

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Brand: MishimotoSKU / Part #: MISMMRT-WRX-01E

Regular price: $188.95
Regular price: ~~$208.00~~
Sale price: $188.95
Unit price: per

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Subtotal: $188.95

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Mishimoto Subaru 2002-2007 WRX/ 2004-2014 STI WRX/STI Aluminum Radiator

Subtotal: $188.95

Not sure it fits? Text us your VINSee all fitment

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Fitment and product questions · 9am–6pm Pacific

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Overview

This Mishimoto performance part is a direct-fit upgrade for 2002-2008 Saab/Subaru applications covering 9-2X Aero, Baja Turbo, Forester Sports 2.5, Forester XT, Impreza WRX. It replaces the weak points of the stock part with stronger materials and better flow or cooling so heat, boost and abuse stay under control on street and track duty. AutoTalent lists verified US-market fitment in the table below.

Why upgrade

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. These kits are engineered around real chassis packaging, so hoses, coolers and adapters line up without fabrication on the listed years. Follow the published torque specs and install guide, reuse sensors where instructed, and confirm clearances if you run other supporting mods. Every unit ships with the Mishimoto Lifetime Warranty for as long as you own it.

Features

Direct fit for the 2002-2007 Subaru WRX and 2004-2016 Subaru WRX STI
50-percent greater capacity than stock plastic expansion tank
100-percent 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

What's Included

Mishimoto other (MMRT-WRX-01E)
Hardware as applicable
Mishimoto Lifetime Warranty

Specifications

Part number	MMRT-WRX-01E
Brand	Mishimoto
Type	other
Shipping dimensions	8.6 x 8 x 6.6 in (21.8 x 20.3 x 16.8 cm)
Shipping weight	2.3 lb (1.0 kg)

Fitment Notes

Verified against Mishimoto US applications and dealer listing for 2002-2008 (7 rows). Years extended to 2027 where the US model remains in production.

Vehicle Fitment

Questions about fitment? Call (310) 231-0292 or text (310) 886-3111.
Year	Make	Model	Chassis	Engine
2005-2006	Saab	9-2X Aero	SAA-US	—
2004-2006	Subaru	Baja Turbo	SUB-US	—
2008	Subaru	Forester Sports 2.5	SUB-US	—
2004-2008	Subaru	Forester XT	SUB-US	—
2002-2007	Subaru	Impreza WRX	SUB-US	—
2004-2007	Subaru	Impreza WRX STI	SUB-US	—
2006-2007	Subaru	Impreza WRX TR	SUB-US	—

Fitment

Year	Make	Model

Not sure? Text us your VIN and we’ll confirm.

Shipping & returns

Shipping: Orders ship via UPS, FedEx or USPS, from our facility near Los Angeles or directly from the manufacturer. Rates for many items are weight-based and shown at checkout. If you need it by a certain date, text us before you order.

Returns: Unused items in brand-new condition and original packaging can be returned within 30 days of the invoice date, with a 25% restocking fee unless otherwise specified. In some cases we can offer a lower fee with the balance as store credit. Shipping charges aren't refundable in either direction unless approved by AutoTalent.

Not returnable: special-order or custom items, and anything that has been installed, modified or altered.

Cancellations: free if the item is out of stock or we miss the ETA you agreed to. Other cancellations carry a 5% processing fee to cover card fees we can't recover. Special-order items can't be cancelled.

Damaged in transit? Report it to the carrier and to us within 48 hours, keep all packaging, and don't send anything back without our written approval.

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