Sunsong 3403964 Power Steering Pressure Line Hose Assembly

Volvo XC90 Power Steering Pressure Hose

The Sunsong 3403964 power steering pressure line hose assembly is built for direct replacement on select Volvo XC90 applications. It is engineered to restore steering fluid transfer under pressure while matching the original routing and connection points for a cleaner installation.

• Fits 2005 Volvo XC90, N/A
• Fits 2005-2006 Volvo XC90, N/A, w/ Speed Related Steering
• 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 to exact fit with required brackets, grommets, switch ports, heat shields, bushings, and protective sleeves as required by application

Built For Pressure And Corrosion Resistance

Part number 3403964 is manufactured to exceed original equipment performance standards for pressure handling and durability. The steel tubing is zinc-coated to resist rust and corrosion from humidity, road salt, water, and grime, while the hose assembly is engineered to restore worn wearable components to original condition where required by the application. This part cross-references Four Seasons 75129 and Gates 366081 for the same application.

Common Steering Problems It Can Address

• Power steering fluid leaks from a worn pressure line
• Loss of steering assist caused by pressure loss in the hose assembly
• Noise or hesitation during steering input from restricted fluid flow
• Corrosion-related hose deterioration on a Volvo XC90
• Fitment issues when replacing an aging pressure line on speed-related steering applications

Installation Notes And Tips

Verify the vehicle’s steering configuration before ordering, especially on 2005-2006 Volvo XC90 models with speed related steering. Confirm line routing, mounting points, and connection style against the removed part. Part number 3403964 is precision engineered for exact fit, which helps support straightforward installation when the vehicle matches the listed application.

Quality Assurance

Each hose is high-pressure tested before it leaves the factory to confirm proper operation and installation readiness. Sunsong states this assembly is built to meet or exceed original equipment performance standards for pressure, burst strength, and durability.