JasperAutopart cooling mod hose kit improves coolant flow for Subaru EJ engines.
JasperAutopart CNC-machined aluminum fittings ensure sturdy, leak-free connections.
JasperAutopart rubber cooling hose resists heat and pressure for lasting performance.
JasperAutopart kit includes all components for a complete installation.
JasperAutopart installation view demonstrates straightforward fitment for Subaru EJ engines.
JasperAutopart 1-year warranty supports peace of mind.
JasperAutopart cooling mod hose kit improves coolant flow for Subaru EJ engines.
JasperAutopart CNC-machined aluminum fittings ensure sturdy, leak-free connections.
JasperAutopart rubber cooling hose resists heat and pressure for lasting performance.
JasperAutopart kit includes all components for a complete installation.
JasperAutopart installation view demonstrates straightforward fitment for Subaru EJ engines.
JasperAutopart 1-year warranty supports peace of mind.

JasperAutopart Cylinder 4 Coolant Mod Hose Kit for Subaru EJ20/25 – WRX/STI 2002–2020

Upgrade your Subaru’s cooling path with the Cylinder 4 Cooling Mod Hose Kit The JasperAutopart Cylinder 4...
Vendor: jasperautopart
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JasperAutopart cooling mod hose kit improves coolant flow for Subaru EJ engines.

JasperAutopart Cylinder 4 Coolant Mod Hose Kit for Subaru EJ20/25 – WRX/STI 2002–2020

£38.79
JasperAutopart cooling mod hose kit improves coolant flow for Subaru EJ engines.
JasperAutopart CNC-machined aluminum fittings ensure sturdy, leak-free connections.
JasperAutopart rubber cooling hose resists heat and pressure for lasting performance.
JasperAutopart kit includes all components for a complete installation.
JasperAutopart installation view demonstrates straightforward fitment for Subaru EJ engines.
JasperAutopart 1-year warranty supports peace of mind.

JasperAutopart Cylinder 4 Coolant Mod Hose Kit for Subaru EJ20/25 – WRX/STI 2002–2020

£38.79
Description
Description
x

Upgrade your Subaru’s cooling path with the Cylinder 4 Cooling Mod Hose Kit

The JasperAutopart Cylinder 4 Cooling Mod Hose Kit is designed for DOHC EJ20 and EJ25 engines spanning 2002 through 2020. It targets popular Subaru models such as WRX, STI, Forester XT, and Legacy GT, delivering a thoughtfully engineered upgrade without altering your factory design. This kit emphasizes durable construction, precise fit, and a streamlined installation experience so you can focus on your drive.

Fitment and compatibility

  • Applicable models include DOHC EJ20/EJ25 engines from 2002–2020 for Subaru.
  • Compatible with 2002–2014 WRX; 2004+ STI; 2004–2008 Forester XT; 2005–2009 Legacy GT.
  • Note: Excludes 2010+ LGT variants.

Key benefits

  • Improved coolant flow to promote more balanced cylinder temperatures.
  • Potential reduction in knock/detonation tendencies and a narrower EGT delta.
  • Overall enhancement of the cooling system’s performance under typical spirited driving.

Materials and build quality

  • TFittings and connectors are CNC machined from 6061 billet aluminum for durability.
  • High-quality rubber cooling hose complements the aluminum components.
  • Designed for a precise fit with durability and a leak-free seal.

What’s in the box and support

  • 1x Engine Cooling Mod Hose Kit (as pictured).
  • 1-year product quality warranty with friendly customer service for fitment or quality questions.

Professional installation is recommended to ensure compatibility with your specific engine setup. If you’re upgrading, this kit is built to blend with existing cooling routes and provide a reliable path for coolant flow under diverse driving conditions.

FAQ

Q: What vehicles does this kit fit?

A: It fits DOHC EJ20/EJ25 engines in 2002–2020 Subaru models (WRX, STI, Forester XT, Legacy GT). Excludes 2010+ LGT.

Q: What warranty or support is offered?

A: The kit includes a 1-year warranty and support for fitment or quality issues.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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