Sunsong 3404242 Power Steering Return Line Hose Assembly - Cooler Tube

Power Steering Return Line Hose Assembly for Lexus LS430

The Sunsong 3404242 power steering return line hose assembly is designed specifically for the Lexus LS430. Engineered to meet OEM specifications, this hose assembly ensures reliable fluid return and maintains proper steering system performance.

• Compatible with Lexus LS430 power steering systems
• End 1 features a 10 mm bubble flare fitting for secure connection
• End 2 includes a 3/8 inch ID hose fitting for flexible installation
• Constructed with durable CSM hose material for resistance to heat and wear
• Overall length of 80.8 inches (2052 mm) to match factory routing
• No bracket included, designed for direct replacement
• Does not include a power steering switch port

Detailed Product Description

The Sunsong power steering return line hose assembly part number 3404242 is built to restore the return flow path in the power steering system of the Lexus LS430. The hose uses CSM (chlorosulfonated polyethylene) material, known for its durability and resistance to heat, oil, and abrasion, which helps maintain system integrity under demanding conditions. The assembly features a 10 mm bubble flare fitting on one end, providing a leak-resistant seal, and a 3/8 inch ID hose fitting on the other end for flexible connection to the steering components. With a length of 80.8 inches (2052 mm), this hose matches the original equipment specifications, ensuring proper fit and function without modification.

Common Applications and Issues Addressed

• Replacement of worn or cracked power steering return hoses on Lexus LS430
• Resolving power steering fluid leaks caused by hose degradation
• Eliminating steering noise or stiffness due to compromised return line flow
• Preventing power steering pump damage from inadequate fluid return
• Maintaining proper hydraulic pressure and steering responsiveness

Installation Notes and Tips

When installing the Sunsong 3404242 power steering return line hose assembly, ensure the vehicle is safely lifted and the steering system is depressurized. Carefully remove the old hose, noting the routing and connection points. Verify that the 10 mm bubble flare fitting and 3/8 inch ID hose fitting align correctly with the vehicle’s power steering components. Avoid twisting or kinking the hose during installation to maintain fluid flow. After installation, check for leaks and top off power steering fluid as needed.

Quality Assurance and Warranty

Sunsong manufactures this power steering return line hose assembly to meet or exceed OEM standards for fit, form, and function. The CSM hose material provides durability against heat and chemical exposure common in power steering systems. While specific warranty details are not provided, Sunsong products typically undergo rigorous quality control to ensure reliable performance in Lexus LS430 applications.