Subaru OEM Heater Core Hose (18-19 Crosstrek - 20D) | 72421FL020

Overview

The Genuine Subaru OEM Heater Core Hose (Part #72421FL020) is a factory-replacement coolant hose designed specifically for the 2018–2019 Subaru Crosstrek. This exact-fit OEM component ensures a leak-free seal and reliable heat delivery to your cabin, maintaining the same quality standards as the original part installed at the factory. Ideal for owners seeking a direct, no-modification replacement that meets Subaru's engineering specifications.

Key Features & Benefits

• Genuine Subaru OEM Quality – Manufactured to factory specifications for guaranteed fitment and long-term durability, eliminating the guesswork of aftermarket compatibility.
• Exact-Fit Design – Engineered specifically for the 2018–2019 Subaru Crosstrek, ensuring a precise drop-in replacement with no trimming, adapters, or modifications required.
• Leak-Free Performance – OEM-grade materials and construction provide a secure, pressure-rated seal to prevent coolant loss and maintain optimal heater core function.
• Factory Warranty Backed – As a genuine Subaru part, it is covered under Subaru's standard OEM parts warranty for added peace of mind.
• Preserves Resale Value – Using genuine OEM components maintains your vehicle's integrity and is preferred by Subaru-certified technicians.

What's Included

• 1x Genuine Subaru Heater Core Hose – Part #72421FL020

Specifications

Fitment & Compatibility

This heater core hose is confirmed to fit the following Subaru vehicles:

Always verify your vehicle's trim level and VIN before ordering to confirm fitment. If you are unsure, cross-reference Subaru part number 72421FL020 with your dealership or the parts.subaru.com parts catalog.

Installation

This heater core hose is designed as a direct OEM replacement. Installation typically involves draining a portion of the coolant system, removing the old hose, and securing the new hose with the factory clamps. While mechanically inclined owners may complete this repair at home, professional installation by a Subaru-certified technician is recommended to ensure proper coolant system bleeding and to avoid scalding hazards. Always allow the engine to cool completely before beginning work on the cooling or heating system.