• IAG Coolant Expansion Tank For 02-07 Subaru WRX, 04-07 STI
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  • IAG Black Coolant Expansion Tank For 02-07 Subaru WRX, 04-07 STI
  • IAG Coolant Expansion Tank Mounting
  • IAG Coolant Expansion Tank Rear Mounting
  • IAG Coolant Expansion Tank Bottom
  • IAG Coolant Expansion Tank Installed on a 02-07 Subaru WRX, 04-07 STI

IAG Coolant Expansion Tank For 02-07 Subaru WRX, 04-07 STI

IAG-ENG-5301BK

Low stock! Only 15 left
Usually Ships In: 24-72 Hours
Tank Color
$239.99
$239.99
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CA WARNING: Handling passenger or off-highway motor vehicle parts can expose you to chemicals such as phthalates and lead, which can cause cancer and reproductive harm. To minimize exposure, service the vehicle in a well-ventilated area, wear gloves, and wash your hands. For more information go to www.P65Warnings.ca.gov/motor-vehicle-parts.
Includes:
  • (x1) IAG Custom Aluminum Expansion Tank (Powder-coated Black or Red)
  • (x2) Bolts

Install Notes:
  • Does not work with OEM hoses. Custom fittings and hoses are required.
  • Does not work with the COBB Airbox
  • May have to relocate boost solenoid valves.
  • Professional installation is recommended

Installation Instructions

Fitment

IAG Coolant Expansion Tank For 02-07 Subaru WRX, 04-07 STI

$239.99
  • 5 stars: 1 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
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  • 1 star: 0 (0%)
B
Brian V.
Great product

Can't go wrong with any IAG products. While building this STI I know I can trust any parts they have produced to be the best quality and figment available!

J
Julien M.

Hi, I have just purchased one of these and I am having problems figuring out what hose to use for the small barb fitting just under the overflow one.. This one is a 1/8 barb and the fitting on my radiator is 1/4. If I use a 1/4 hose on the tank, it feels loose. Let me know what you guys recommand.

IAG Performance

Please give our support team a call at 410-840-3555, so we can help resolve what you are encountering!

W
Whit3Wolff

Would this fit RHD?

IAG Performance

Sorry, we have not tested this part on a RHD vehicle and cannot confirm that fitment.

J
Justin B.

Is there any plan to sell a plug-n-play hose kit for this in the future?

bc K.

Given the custom nature of many of the builds using this part it's unlikely, but if there is enough demand we may look into it in the future.

A
Andrew D.

What kind of fittings are those?

Customer

-8 AN coolant turbo return fitting, -8 AN drain outlet fitting and .25" barb fitting for the overflow

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