Sunsong 3403014 Power Steering Pressure Line Hose Assembly

BMW Power Steering Pressure Line Hose

The Sunsong 3403014 power steering pressure line hose assembly is built for select BMW applications and engineered to restore steering system pressure delivery. It is a direct-fit replacement for 1988-1993 BMW 735i, 735iL, and 1989-1993 BMW 535i models, with banjo fittings at both ends for the listed applications.

• Fits 1989-1993 BMW 535i, N/A
• Fits 1988-1992 BMW 735i, N/A
• Fits 1988-1992 BMW 735iL, N/A
• End 1 fitting: 14 mm banjo
• End 2 fitting: 14 mm banjo
• 45.5 in. overall length
• CSM hose material for fluid resistance
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Pressure-rated to 1,500 psi working pressure and 8,700 psi burst pressure
• Tensile strength rated at 1,600 lb.

This Sunsong 3403014 hose assembly is manufactured to exceed original equipment performance standards and is precision engineered for exact fit on the specified BMW 535i, 735i, and 735iL applications. The hose is built with steel tubing protected by a zinc coating to help resist rust and corrosion from humidity, road salt, water, and grime, while the pressure hose construction is tested for high-pressure operation before it leaves the factory. This part cross-references Dorman - HELP (e.g., 80605) for the same application.

Common Steering Problems It Can Address

• Power steering fluid leaks at the pressure line
• Loss of steering assist from a damaged hose
• Cracked, corroded, or fatigued pressure tubing
• Improper hose sealing at banjo connections
• Noise or stiffness caused by pressure loss in the steering circuit

Installation Notes

Verify banjo fitting size, hose length, and routing before installation. Inspect mating surfaces, seals, and adjacent steering components for wear or contamination, and confirm the line follows the original path without kinks or contact with hot or moving parts. This hose does not list a bracket or power steering switch port in the provided specifications.

Quality Assurance

Each hose is pressure tested at the factory before shipment to confirm proper operation and installation readiness. Sunsong specifies this assembly to meet or exceed original equipment performance standards for the listed BMW applications.