Sunsong 3402407 Power Steering Return Line Hose Assembly - Cooler Tube

Power Steering Return Hose for Escape and Tribute

The Sunsong 3402407 power steering return line hose assembly is built for low-pressure, high-temperature return-side service in the steering system. It is engineered for exact fit on select Ford Escape, Mazda Tribute, and Mercury Mariner applications, with corrosion-resistant steel tubing and a precision-formed hose assembly.

Key Features

• Power steering return line hose assembly for return-side steering fluid routing
• Max working pressure of 250 psi for low-pressure hydraulic service
• CSM hose material for return hose applications
• 3/8 in. beaded tube end and 3/8 in. ID hose end
• 132.3 in. overall length for the listed vehicle applications
• Steel tubing with zinc electroplating for resistance to rust, road salt, water, and grime
• Precision-engineered fit for select Ford Escape, Mazda Tribute, and Mercury Mariner models

Detailed Description

Sunsong 3402407 is a power steering return line hose assembly made for the cooler tube position on select 2004-2007 Ford Escape, 2005-2006 Mazda Tribute, and 2005 Mercury Mariner vehicles. The assembly uses high-grade steel tubing with a zinc coating to help resist corrosion in harsh underbody conditions, while the hose section is built from CSM material for low-pressure, high-temperature return flow. This part cross-references Dorman - HELP 80020 and Gates 365582 for the same application. If you are replacing a leaking or deteriorated return hose on a Ford Escape, Mazda Tribute, or Mercury Mariner, Sunsong 3402407 provides a direct-fit service solution for the steering cooler tube routing.

What This Part Helps Address

• Power steering fluid seepage from a worn return hose
• Corrosion on the cooler tube or steel line section
• Cracked, hardened, or heat-aged hose material
• Restricted steering fluid return flow from damaged tubing
• Noise or steering performance issues related to fluid loss in the return circuit

Installation Notes and Tips

Verify the cooler tube routing, end styles, and overall length before installation. This assembly uses a 3/8 in. beaded tube end and a 3/8 in. ID hose end, so matching the original connection points is important for proper sealing. Confirm vehicle build date and application details for the listed Ford Escape, Mazda Tribute, and Mercury Mariner fitments, especially where notes specify production cutoffs or aftermarket design differences.

Quality Assurance

Sunsong states that its return hoses exceed original equipment performance standards and are engineered to restore wearable components to original condition where required by the application. The 3402407 part number is manufactured to support the specified fitment and corrosion resistance requirements for steering return service.