Sunsong 3401991 Power Steering Pressure Line Hose Assembly

Sunsong 3401991 Power Steering Pressure Hose

Sunsong 3401991 is a power steering pressure line hose assembly built for direct replacement on select Ford F-250 applications. It is engineered to meet demanding pressure requirements and restore steering system flow with the correct fit, routing, and connection points.

• Fits 1977 Ford F-250, N/A
• Fits 1975 Ford F-250, N/A, w/ Bendix Control Valve, From Serial # T80001
• Max working pressure rated at 1,500 psi
• Burst pressure rating of 8,700 psi
• Tensile strength rated at 1,600 lb
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Precision-engineered hose assembly with brackets and required wear components as specified
• High-pressure tested before leaving the factory

Built for Ford F-250 Steering Service

This pressure hose assembly is made to replace the original power steering pressure line on the listed Ford F-250 applications. The hose uses CSM and steel construction, a 62-inch length, a 5/8-inch female end, and a 1/2-inch male inverted flare end for the specified steering setup. For Ford F-250 pressure hose replacement, Sunsong 3401991 provides the correct configuration for the 1975 Bendix Control Valve application and the 1977 model listed in the fitment data.

This part cross-references Gates 366820 for the same application.

Common Problems This Part Addresses

• Power steering fluid leaks from a worn or damaged pressure line
• Hard steering caused by pressure loss in the hydraulic circuit
• Corrosion-related hose failure from road salt, moisture, or grime
• Improper hose routing or fitment after a previous replacement
• Noise or inconsistent steering assist linked to a compromised pressure hose

Installation Notes and Tips

Verify the vehicle year, engine/steering configuration, and serial-number note before installation. Confirm the end fittings, bracket locations, and hose routing match the original assembly on the Ford F-250. Inspect related steering components, seals, and fluid condition during service to help ensure proper operation after replacement.

Quality Assurance

Each Sunsong pressure hose is pressure tested before it leaves the factory. The assembly is built to exceed original equipment performance standards, with corrosion-resistant steel tubing and reinforced construction intended to support long service life in demanding steering systems.