Sunsong 3401977 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Hose for Ford Super Duty

This Sunsong power steering pressure line hose assembly is built for 1999-2003 Ford F-350 Super Duty, 2000-2003 Ford F-250 Super Duty, and 2000-2002 Ford Excursion applications. Part number 3401977 is engineered to restore steering system pressure delivery with OE-style fitment and durable hose construction.

Key Features

• Direct-fit power steering pressure line hose assembly for Ford truck and SUV applications
• End 1: 1/2 in. male O-ring fitting
• End 2: 16 mm swivel O-ring fitting
• 24.4 in. overall length for the listed Ford Super Duty and Excursion applications
• CSM hose material with steel reinforcement for strength and fluid resistance
• High-grade steel tubing with zinc electroplating for added corrosion and rust resistance
• Pressure-rated to 1,500 psi working pressure, 8,700 psi burst pressure, and 1,600 lb tensile strength
• High-pressure tested before shipment for quality verification

Detailed Description

Sunsong 3401977 is a power steering pressure hose assembly made for Ford F-250 Super Duty, Ford F-350 Super Duty, and Ford Excursion models listed in the fitment data. It is precision engineered to match the original routing and connection points, helping maintain proper steering response and fluid transfer under pressure. The hose uses CSM and steel materials, while the tubing is manufactured from high-grade steel with a zinc coating to resist corrosion from humidity, road salt, water, and grime. This part cross-references Edelmann 80321 and Gates 352880 for the same application.

Common Problems This Part Can Address

• Power steering fluid leaks from a worn or damaged pressure hose
• Loss of steering assist caused by pressure loss in the hydraulic line
• Noise or stiffness in the steering system related to hose deterioration
• Corrosion-related hose or tube failure on Ford Super Duty and Excursion vehicles
• Poor sealing at the hose connection points

Installation Notes and Tips

Verify the end fittings, hose length, and routing before installation. This assembly uses a 1/2 in. male O-ring end and a 16 mm swivel O-ring end, so matching the original connection style is important for proper sealing. Inspect adjacent steering components, fluid condition, and mounting points during replacement to help ensure a clean installation on the Ford F-250 Super Duty, Ford F-350 Super Duty, or Ford Excursion.

Quality Assurance

Each hose is pressure tested at the factory before it leaves production. Sunsong builds this pressure line hose assembly to exceed original equipment performance standards with specified pressure and strength ratings for dependable operation.