Subaru OEM Heater Hose - Outlet (15 WRX) | 72421FJ000

Overview

The Genuine Subaru OEM Heater Hose – Outlet (Part #72421FJ000) is the factory-original coolant hose designed specifically for the 2015 Subaru WRX. As a direct OEM replacement, this heater hose ensures an exact fit and maintains the factory cooling and cabin heat performance your WRX was engineered to deliver. If your existing hose shows signs of cracking, leaking, or softening, replacing it with the genuine Subaru part is the only way to guarantee factory-level durability and reliability.

Key Features & Benefits

• Genuine Subaru OEM Quality – Manufactured to Subaru's factory specifications for a guaranteed exact fit, eliminating guesswork and fitment concerns associated with aftermarket alternatives.
• Factory-Correct Material – Constructed from the same heat- and pressure-resistant rubber compound used on the original assembly line, ensuring long-lasting performance under demanding engine temperatures.
• Precise Outlet Design – Purpose-built as the outlet heater hose for the 2015 WRX cooling circuit, maintaining correct coolant flow direction and connection geometry.
• Maintains Factory Warranty – Using genuine Subaru parts helps preserve your vehicle's factory warranty coverage, giving you added peace of mind.
• Direct OEM Replacement – No modifications, adapters, or trimming required; installs exactly like the original part it replaces.

What's Included

• 1x Genuine Subaru OEM Heater Hose – Outlet (Part #72421FJ000)

Specifications

Fitment & Compatibility

This heater hose outlet is a direct OEM replacement for the following Subaru vehicle:

We strongly recommend confirming fitment using your full VIN at parts.subaru.com before ordering to ensure this is the correct outlet hose for your specific vehicle configuration.

Installation

Replacement of the heater hose outlet is a straightforward procedure for experienced DIYers with basic hand tools, though professional installation is recommended if you are unfamiliar with cooling system service. The cooling system should be cold before beginning work. Drain coolant to the appropriate level, remove the old hose and clamps, install the new hose, secure the clamps, and refill and bleed the cooling system. Always inspect hose clamps and replace if worn.