Sunsong 3403641 Power Steering Pressure Line Hose Assembly

Sunsong 3403641 Power Steering Pressure Hose

Sunsong 3403641 is a power steering pressure line hose assembly for select BMW 540i models from 1997-2003. It is built to meet demanding steering-system pressure requirements and is engineered for direct replacement service on the BMW 540i power steering circuit.

Key Features

• Fits 1997-2003 BMW 540i
• Banjo fittings on both ends, 14 mm end 1 and 14 mm end 2
• 34.6 in. overall length for application-specific routing
• CSM hose material for fluid resistance and durability
• High-pressure construction rated for 1,500 psi working pressure
• Burst pressure rating of 8,700 psi and tensile strength of 1,600 lb
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Factory pressure-tested before shipment

Detailed Description

This power steering pressure hose assembly is engineered for the BMW 540i and built to restore proper hydraulic flow between steering components. Sunsong 3403641 uses precision-fit routing and OE-style connection points to support a clean replacement on 1997-2003 BMW 540i applications. The hose construction is designed for long service life, with steel tubing protected by zinc plating to resist rust, road salt, moisture, and grime. This part cross-references Rein PSH0118P and URO 32411093926 for the same application.

What This Part Helps Address

• Power steering fluid leaks at the pressure line
• Loss of steering assist from a damaged hose
• Noise or stiffness caused by restricted hydraulic flow
• Corrosion-related hose deterioration on BMW 540i steering systems
• Fitment issues from worn or incorrect replacement lines

Installation Notes and Tips

Verify banjo fitting size and hose routing before installation. Inspect mating sealing surfaces, brackets, and nearby steering components for wear or contamination before connecting the new line. Because this hose is application-specific, confirm it matches the 1997-2003 BMW 540i pressure line configuration before service.

Quality Assurance

Each Sunsong pressure hose is high-pressure tested at the factory before it leaves production. The hose is built to exceed original equipment performance standards with a 1,500 psi maximum working pressure, 8,700 psi burst pressure rating, and corrosion-resistant steel tubing for dependable service.