Sunsong 3405009 Power Steering Return Line Hose Assembly - From Rack

Overview

Sunsong 3405009 is a power steering return line hose assembly built for fluid transfer service in the steering system. It uses CSM material and a hose-to-male end configuration to match the original routing and connection style for the listed BMW applications.

Compatible With BMW 535i xDrive and BMW 535xi applications, this return line hose assembly is focused on exact form, fit, and function. The 3405009 part number is a direct reference for buyers searching for a steering hose replacement with the correct connection style and length.

Key Features

• CSM construction for fluid transfer durability in steering service.
• Hose-to-male end design for the specified return line connection.
• 10.24 in. / 260 mm length for application-specific routing.
• No fittings included, so the assembly is supplied as listed.
• Fits BMW steering return line applications with rack-side routing.

Detailed Description

The Sunsong 3405009 power steering return line hose assembly is engineered for the return side of the hydraulic steering circuit, where fluid is routed back from the rack. Sunsong focuses on automotive hose and line manufacturing, with an emphasis on form, fit, and function that aligns with OEM-style replacement needs. For shoppers comparing BMW 535i xDrive steering hose replacement options or a BMW 535xi power steering return line hose assembly, this part number provides a clear match point.

Its CSM construction supports fluid-handling use, while the hose and male end configuration helps maintain the correct connection style for the listed fitments. The 3405009 part number is also useful when cross-checking catalog listings for the same steering return line application.

What It Is Used For

• Replacing a leaking or damaged power steering return hose.
• Restoring proper fluid return from the steering rack.
• Addressing cracked, hardened, or deteriorated hose material.
• Correcting connection issues at the return line interface.
• Supporting repair of steering fluid seepage in the listed BMW models.

Installation Notes

Verify the hose routing, end style, and length against the removed part before installation. Confirm the vehicle uses the listed from-rack return line application and match the connection points to the original configuration. Because fittings are not included, reuse or source the required connection components as needed for the repair.

Quality Assurance

Sunsong is a vertically integrated manufacturer of automotive fluid transfer hoses and lines, with product development centered on installer needs and industry quality standards. The brand states that its products are built to deliver exact form, fit, and function for OEM-style replacement applications.