Subaru OEM A/C Line O-Ring Subaru WRX 02-07 / STI 04-07 | 73039FA110

Product Fitment:

• 1998–2000 Subaru Forester

• 1998–2007 Subaru Impreza

• 2002–2007 Subaru WRX

• 2004–2007 Subaru STI

Overview

The Genuine Subaru OEM A/C Line O-Ring (Part #73039FA110) is an exact-fit sealing component designed for the air conditioning refrigerant lines on 2002–2007 Subaru WRX models. As a factory-original replacement part, it ensures a leak-free seal and restores proper A/C system performance to OEM specification. If your WRX is experiencing refrigerant loss or A/C line leaks, this precision-engineered O-ring is the correct, no-compromise fix.

Key Features & Benefits

• Genuine Subaru OEM Quality — Manufactured to factory specifications, ensuring exact material composition, durometer hardness, and dimensional tolerances for a perfect seal every time.
• Exact-Fit Guarantee — Designed specifically for 2002–2007 Subaru WRX A/C refrigerant lines; no trimming, adapting, or guesswork required.
• Leak-Free Performance — Restores full A/C system integrity by sealing refrigerant line connections to prevent pressure loss and maintain cooling efficiency.
• Factory Warranty Coverage — Backed by Subaru's genuine parts warranty for peace of mind.
• Direct OEM Replacement — Eliminates compatibility concerns that can arise with aftermarket O-rings of incorrect sizing or material.

What's Included

• 1 × Genuine Subaru OEM A/C Line O-Ring (Part #73039FA110)

Specifications

Installation

This O-ring is a standard A/C line sealing component. Installation typically involves recovering refrigerant, disconnecting the affected A/C line fitting, replacing the O-ring, and recharging the system. Because A/C refrigerant handling requires EPA 609-certified equipment, professional installation by a qualified technician is strongly recommended. Lubricate the new O-ring with clean refrigerant oil prior to assembly to prevent tearing and ensure a proper seal.