Subaru OEM Heater Hose - Outlet (15-21 WRX) | 72421VA010

Overview

The Genuine Subaru OEM Heater Hose – Outlet (Part #72421VA010) is the factory-replacement coolant outlet hose designed specifically for 2015–2021 Subaru WRX models. This exact-fit OEM component ensures proper coolant flow from the heater core, maintaining cabin heating performance and preventing leaks. Choosing a genuine Subaru part guarantees the same material quality, dimensional accuracy, and durability as the hose installed at the factory.

Key Features & Benefits

• Genuine Subaru OEM Quality – Manufactured to Subaru's exact factory specifications, ensuring a perfect fit and reliable long-term performance.
• Exact-Fit Design – Engineered specifically for the 2015–2021 WRX, eliminating guesswork and the risk of improper fitment associated with universal or aftermarket hoses.
• Durable Construction – Built from factory-grade rubber and reinforcement materials rated to handle the thermal cycling and pressure demands of the WRX cooling system.
• Leak-Free Sealing – OEM molded hose geometry mates precisely with factory heater core and coolant outlets, reducing the risk of coolant leaks and cabin heater loss.
• Factory Warranty Coverage – Backed by Subaru's genuine parts warranty when installed by an authorized Subaru dealer or qualified technician.
• Direct Drop-In Replacement – No modifications required; restores heater system function to factory condition quickly and correctly.

What's Included

• 1x Genuine Subaru Heater Hose – Outlet (Part #72421VA010)

Specifications

Fitment & Compatibility

This genuine Subaru heater hose outlet is compatible with the following vehicles:

Please confirm your vehicle's year and trim level before ordering. If you are unsure of compatibility, reference Subaru part number 72421VA010 against your vehicle's parts diagram at parts.subaru.com.

Installation

This heater hose is a direct OEM replacement and requires no modifications for installation on compatible 2015–2021 Subaru WRX vehicles. The job involves draining a portion of the coolant system, removing the old hose, and installing the new OEM hose with factory clamps. While a mechanically experienced DIYer can complete this repair, professional installation by a Subaru-trained technician is recommended to ensure proper torque, clamp placement, and coolant refill procedure. Always allow the engine to cool completely before servicing any coolant system components.