Sunsong 3404880 Power Steering Return Line Hose Assembly - Cooler Tube

Power Steering Return Hose for Ford Edge and Lincoln MKX

Sunsong 3404880 is a power steering return line hose assembly built for low-pressure, high-temperature return-side service. It is engineered for direct fitment on select 2007-2010 Ford Edge and 2007-2010 Lincoln MKX cooler tube applications, with corrosion-resistant steel tubing and a precision-fit design.

Key Features

• Power steering return line hose assembly for cooler tube applications
• Fits 2007-2010 Ford Edge, cooler tube
• Fits 2007-2010 Lincoln MKX, cooler tube
• Maximum working pressure of 250 psi
• High-grade steel tubing with zinc electroplating for rust and corrosion resistance
• CSM hose material for low-pressure, high-temperature operation
• Precision-engineered to exact fit
• Part number 3404880 for easy identification

Detailed Description

This Sunsong return hose assembly is made for steering systems that route fluid through the cooler tube on the Ford Edge and Lincoln MKX. The hose is built to exceed original equipment performance standards in return-side service, with steel tubing protected by a zinc coating to help resist humidity, road salt, water, and grime. Sunsong 3404880 is a practical OE-style replacement when the original return line shows wear, seepage, or corrosion.

This part cross-references Dorman - HELP 93556 and Four Seasons 75197 for the same application.

What It Helps Fix

• Power steering fluid leaks at the return line
• Corrosion on the cooler tube or steel tubing
• Softening or deterioration of the return hose material
• Steering noise caused by low fluid level from a leaking line
• Loss of steering assist related to damaged return plumbing

Installation Notes and Tips

Verify the cooler tube routing and hose length before installation. This assembly is 111.8 inches long and uses an ID hose end fitting type. Inspect related steering components, clamps, and mounting points for wear or contamination before reassembly. Because this is a return-side hose, it is used in low-pressure service rather than high-pressure pump-to-rack routing.

Quality Assurance

Sunsong designs this return hose assembly to meet or exceed original equipment performance expectations for return-line use. The steel tubing is electroplated with zinc to improve resistance to corrosion and rust in harsh underbody conditions.