Sunsong 3404636 Power Steering Return Line Hose Assembly - Gear To Cooler

Power Steering Return Hose for Explorer and Mountaineer

Sunsong 3404636 is a power steering return line hose assembly built for low-pressure, high-temperature return-side service. It is engineered for 2002-2005 Ford Explorer and 2002-2005 Mercury Mountaineer applications at the gear to cooler position, with fitment-focused construction for direct replacement service.

Key Features

• Return line hose assembly for power steering systems
• Rated for a maximum working pressure of 250 psi
• Suitable for low-pressure, high-temperature operation
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Precision-engineered fit for the specified vehicle applications
• Includes required brackets, grommets, heat shields, bushings, and protective sleeves as needed to restore wearable components to original condition

Detailed Description

This Sunsong power steering return line hose assembly is built to replace the return-side hose running from the gear to the cooler on select Ford and Mercury SUVs. Part number 3404636 is designed for 2002-2005 Ford Explorer and 2002-2005 Mercury Mountaineer models, with construction that supports the demands of steering fluid return flow while resisting corrosion from humidity, road salt, water, and grime. This part cross-references Dorman - HELP 81027 for the same application.

Common Repair Uses

• Leaking power steering return hose
• Corrosion-damaged steel tubing on the return line
• Restricted steering fluid return flow
• Noise or fluid loss related to a worn hose assembly
• Restoration of the gear to cooler return path on Explorer and Mountaineer models

Installation Notes and Tips

Verify the gear to cooler routing before installation and compare the original hose path, brackets, and protective components to the replacement assembly. For 2002-2005 Ford Explorer and 2002-2005 Mercury Mountaineer applications, confirm all connection points are clean and free of damage before final assembly. Sunsong 3404636 is engineered for exact fit in the listed applications.

Quality Assurance

Sunsong manufactures this return hose assembly to exceed original equipment performance standards for the specified return-line application. The steel tubing is zinc-coated to improve resistance to rust and corrosion in harsh underbody conditions.