Sunsong 3402366 Power Steering Pressure Line Hose Assembly - From Pump

Sunsong 3402366 Power Steering Pressure Hose

The Sunsong 3402366 power steering pressure line hose assembly is built for the hydraulic demands of the steering system on the 2003 Lincoln Aviator. It is engineered as a direct-fit replacement for the pressure line from the pump, with OE-style end fittings and pressure ratings that support reliable steering performance.

Key Features

• Fits 2003 Lincoln Aviator, from pump
• 16 mm male swivel O-ring fittings on both ends
• 34.3 in. (871 mm) overall length
• PS switch port included
• CSM hose material for fluid resistance and durability
• High-grade steel tubing with zinc plating for corrosion resistance
• Pressure tested before shipment for installation confidence
• Part number 3402366 for easy identification

Detailed Description

This power steering pressure line hose assembly is built to replace the factory pressure hose on the 2003 Lincoln Aviator, from pump. Sunsong 3402366 uses 16 mm male swivel O-ring connections at both ends and a 34.3-inch hose length to match the original routing and connection points. The assembly is rated for up to 1,500 psi working pressure, 8,700 psi burst pressure, and 1,600 lb tensile strength, helping it handle the demands of the steering hydraulic circuit.

High-grade steel tubing with zinc coating adds resistance to rust and corrosion from humidity, road salt, water, and grime. The hose material is CSM, and the integrated PS switch port supports the original system layout. For shoppers searching for a 2003 Lincoln Aviator power steering pressure hose, Lincoln Aviator steering hose replacement, or Sunsong 3402366 pressure line hose assembly, this part is built to restore proper fluid transfer from the pump.

This part cross-references Dorman HELP 80609 for the same application.

What It Helps Fix

• Power steering fluid leaks at the pressure line
• Loss of steering assist from a damaged hose
• Noise caused by pressure loss in the steering system
• Corrosion-related hose failure on the pressure line
• Improper fit from a worn or incorrect replacement hose

Installation Notes and Tips

Confirm the vehicle is a 2003 Lincoln Aviator and verify the from-pump routing before installation. Inspect the mating O-ring sealing surfaces, line routing, and nearby components for wear or contamination before connecting the new hose. Because this assembly includes a PS switch port, transfer and reconnect system components according to the vehicle’s original configuration.

Quality Assurance

Each Sunsong 3402366 hose is high-pressure tested at the factory before it leaves production. The assembly is engineered to meet or exceed original equipment performance standards for pressure handling and durability.