Sunsong 3405390 Power Steering Pressure Line Hose Assembly - To Gear

Sunsong 3405390 Power Steering Pressure Hose

The Sunsong 3405390 is a power steering pressure line hose assembly built for 1993-1994 Toyota T100 applications with a to-gear routing. It is engineered to meet demanding pressure requirements while restoring proper steering fluid transfer in the power steering system.

For Toyota T100 power steering hose replacement, this assembly is built around exact-fit dimensions and durable materials to support reliable operation. The 3405390 part number is a direct reference for this application, and the hose design focuses on corrosion resistance and consistent pressure handling.

Key Features

• Fits 1993-1994 Toyota T100, to gear
• 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
• CSM hose material for durability in steering system service
• Precision-engineered fit for direct replacement use
• High-pressure tested before leaving the factory

Detailed Description

This Sunsong power steering pressure line hose assembly is designed for Toyota T100 steering service where the pressure line runs to the gear. The 3405390 hose uses high-grade steel tubing with a zinc coating to help resist rust and corrosion from humidity, road salt, water, and grime. Its pressure ratings and tensile strength provide the durability expected in a critical steering circuit, while the precision-fit construction supports straightforward replacement on the specified Toyota T100 model years.

This part cross-references Four Seasons 75168 for the same application.

Common Problems This Part Can Address

• Power steering fluid leaks from a worn or damaged pressure hose
• Loss of steering assist caused by pressure line failure
• Noise or stiffness in steering from restricted fluid flow
• Corrosion-related hose deterioration on older Toyota T100 vehicles
• Pressure loss at the steering gear connection

Installation Notes and Tips

• Confirm routing and end fittings before installation: banjo on end 1 and male O-ring on end 2.
• Inspect adjacent steering components, seals, and fluid condition before installing the new hose.
• Flush contaminated power steering fluid if the old hose failed from internal wear or debris.
• Verify the line is seated correctly at the gear connection and check for leaks after startup.

Quality Assurance

Every Sunsong 3405390 hose is pressure tested before it leaves the factory to help ensure dependable installation and operation. The hose is built to exceed original equipment performance standards for pressure handling and durability.