Sunsong 3402455 Power Steering Pressure Line Hose Assembly - Pump To Hydroboost

Power Steering Pressure Line Hose for Ford Super Duty

This Sunsong power steering pressure line hose assembly is built for 2005-2007 Ford F-250 Super Duty and Ford F-350 Super Duty applications with a pump-to-hydroboost routing. Part number 3402455 is engineered to match the original hose layout and connection style for direct replacement service.

• Compatible with 2005-2007 Ford F-250 Super Duty, pump to hydroboost
• Compatible with 2005-2007 Ford F-350 Super Duty, pump to hydroboost
• 16 mm swivel O-ring fittings at both ends
• 39.3 in. (998 mm) hose length
• CSM hose material for hydraulic steering service
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Pressure-rated beyond OE performance targets with 1,500 psi max working pressure

Detailed Product Overview

Sunsong 3402455 is a power steering pressure line hose assembly for Ford Super Duty trucks that route fluid from the pump to the hydroboost unit. The hose is precision engineered for exact fit and uses 16 mm swivel O-ring fittings on both ends, helping maintain proper sealing and routing in the steering hydraulic system. The steel tubing is zinc coated to resist rust and corrosion from humidity, road salt, water, and grime.

This part cross-references Dorman - HELP 80440 and Gates 363890 for the same application. It is a direct-fit replacement for Ford F-250 Super Duty and Ford F-350 Super Duty models in the listed years, and part number 3402455 is also referenced in interchange listings for this application.

What This Hose Helps Address

• Power steering fluid leaks at the pressure line
• Cracked, rusted, or corroded original hose tubing
• Steering assist loss caused by pressure line failure
• Hydroboost pressure routing issues on Super Duty trucks
• Noise or poor steering response related to damaged hydraulic lines

Installation Notes and Tips

Verify the pump-to-hydroboost routing, end fitting size, and hose length before installation. This assembly uses swivel O-ring connections, so clean sealing surfaces and inspect the mating components for wear or damage before tightening. Confirm that the hose path matches the original routing to avoid contact with heat sources or moving parts.

Quality Assurance

Each Sunsong 3402455 hose is pressure tested before it leaves the factory. The assembly is built to exceed original equipment performance standards, with a maximum working pressure of 1,500 psi, a burst pressure rating of 8,700 psi, and a tensile strength of 1,600 lb.