Sunsong 3404379 Power Steering Pressure Line Hose Assembly - To Gear

Power Steering Pressure Line for Lexus SC300

Sunsong 3404379 is a power steering pressure line hose assembly for the 1995-2000 Lexus SC300, to gear. It is built to meet demanding steering-system pressure requirements while maintaining a direct-fit layout for service replacement. This hose assembly is engineered for consistent fluid transfer and dependable steering response in the Lexus SC300.

Key Features

• Fits 1995-2000 Lexus SC300, to gear
• Banjo fittings at both ends, 16 mm end 1 and 16 mm end 2
• 57.5 in. overall length for the specified application
• PS switch port included
• CSM hose material for pressure-line service
• High-grade steel tubing with zinc electroplating for corrosion resistance
• High-pressure tested before shipment
• Part number 3404379 for catalog lookup and replacement matching

Detailed Description

This Sunsong power steering pressure line hose assembly is built for the Lexus SC300 steering system and follows the original routing and connection style for the to-gear application. Part number 3404379 uses banjo fittings on both ends, a 57.5-inch length, and a PS switch port to match the vehicle’s steering line requirements. Sunsong states that its pressure hoses are engineered above original equipment performance standards, with steel tubing protected by zinc plating to resist rust and corrosion from humidity, road salt, water, and grime. The hose is high-pressure tested at the factory to support trouble-free installation and operation.

This part cross-references Dorman - HELP 80857 and Gates 352453 for the same application.

What It Is Used For

• Restoring steering assist when the original pressure line is leaking
• Replacing a cracked, corroded, or fatigued power steering hose
• Correcting fluid loss that can lead to low steering pressure
• Addressing steering noise caused by damaged pressure-line components
• Repairing a worn line on a 1995-2000 Lexus SC300, to gear

Installation Notes and Tips

Verify banjo fitting size, hose length, and PS switch port location before installation. Inspect mating surfaces, seals, and surrounding steering components for wear or contamination, and confirm the line routing matches the original path on the Lexus SC300. After installation, refill the system with the correct power steering fluid and bleed air from the system according to factory service procedures.

Quality Assurance

Sunsong pressure hoses are factory pressure tested before release and use corrosion-resistant steel tubing with zinc coating for added durability in harsh driving conditions. Part number 3404379 is engineered for direct-fit service on the specified Lexus SC300 application.