Sunsong 3405359 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Hose for Audi

Sunsong 3405359 is a power steering pressure line hose assembly built for select Audi applications, including the Audi A8 Quattro, Audi S8, and Audi A8. It is engineered to meet demanding pressure requirements and restore proper steering fluid transfer in the power steering system.

Key Features

• Max working pressure: 1,500 psi
• Burst pressure rating: 8,700 psi
• Tensile strength: 1,600 lb
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Precision-engineered fit for the listed Audi applications
• Banjo fittings: 16 mm end 1 and 14 mm end 2
• CSM hose material for durability in steering service
• High-pressure tested before leaving the factory

Detailed Description

This Sunsong power steering pressure line hose assembly, part number 3405359, is built for direct replacement in 1997-2003 Audi A8 Quattro, 2001-2003 Audi S8, and 1997-1999 Audi A8 applications. It is manufactured to exceed original equipment performance standards, with pressure capacity and material construction selected for long service life in demanding steering systems. The steel tubing is zinc plated to help resist rust and corrosion from humidity, road salt, water, and grime. This part cross-references Gates 352384 for the same application.

Use Sunsong 3405359 when replacing a worn or leaking pressure hose on an Audi A8 Quattro, Audi S8, or Audi A8 with the listed fitment. The hose is engineered for exact fit and factory-style operation, helping maintain consistent hydraulic steering response.

What It Helps Fix

• Power steering fluid leaks from a damaged pressure hose
• Loss of steering assist caused by pressure line failure
• Corrosion-related hose or tube deterioration
• Steering noise related to restricted or failing fluid flow
• Fitment issues from an incorrect replacement hose

Installation Notes and Tips

Confirm the vehicle year, model, and fitting style before installation. Match the 16 mm banjo end and 14 mm banjo end to the original hose routing and connection points. Inspect surrounding steering components, seals, and mounting points for wear before installing the new hose. Properly bleed the power steering system after installation to remove trapped air and restore normal operation.

Quality Assurance

Each hose is pressure tested at the factory before shipment to verify performance and help ensure trouble-free installation and operation. Sunsong 3405359 is built to meet demanding steering system requirements for the listed Audi fitments.