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Enhance your Subaru WRX or STI with the Mishimoto Aluminum Coolant Expansion Tank, designed for models from 2002 to 2016. Constructed from 100-percent TIG-welded aluminum, this expansion tank offers superior durability and resistance to the repeated thermal cycles typical in high-performance engines. Its fully-welded barb fittings ensure a leak-free connection, maintaining optimal coolant pressure and preventing potential failures associated with stock plastic units. The tank features a 50-percent increase in capacity over the factory plastic tank, providing additional coolant volume for improved thermal management and engine reliability during spirited driving or track use. The polished silver or anodized black finish not only enhances your engine bay aesthetic but also matches Mishimoto’s performance aluminum radiators, creating a cohesive and professional look. Designed for a precise fit in the 2002-2007 Subaru WRX and 2004-2016 STI, this expansion tank is engineered to replace factory units seamlessly, ensuring straightforward installation and long-term performance. Whether you're upgrading for reliability or style, the Mishimoto Subaru Aluminum Coolant Expansion Tank is backed by Mishimoto’s lifetime warranty, reflecting their commitment to quality craftsmanship and customer satisfaction. This product is ideal for enthusiasts seeking to improve engine bay durability and appearance without compromising performance or reliability.
Features:
Fitment:
2002 Subaru Impreza WRX
2003 Subaru Impreza WRX
2004 Subaru Baja Turbo
2004 Subaru Forester XT
2004 Subaru Impreza WRX
2004 Subaru Impreza WRX STI
2005 Saab 9-2X Aero
2005 Subaru Baja Turbo
2005 Subaru Forester XT
2005 Subaru Forester XT Premium
2005 Subaru Impreza WRX
2005 Subaru Impreza WRX STI
2006 Saab 9-2X Aero
2006 Subaru Baja Turbo
2006 Subaru Forester XT Limited
2006 Subaru Impreza WRX
2006 Subaru Impreza WRX Limited
2006 Subaru Impreza WRX STI
2006 Subaru Impreza WRX TR
2007 Subaru Forester XT Limited
2007 Subaru Impreza WRX
2007 Subaru Impreza WRX Limited
2007 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI Limited
2007 Subaru Impreza WRX TR
2008 Subaru Forester Sports 2.5 XT
2008 Subaru Forester XT Limited
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
