Sunsong 3404905 Power Steering Return Line Hose Assembly

Sunsong 3404905 Power Steering Return Hose

The Sunsong 3404905 power steering return line hose assembly is built for low-pressure, high-temperature return-side service and is engineered to match original equipment fit and function. It is a direct replacement for select Ford Super Duty applications, including Ford F-250 Super Duty and Ford F-350 Super Duty models with Hydroboost.

• Return line hose assembly for power steering systems
• Maximum working pressure of 250 psi
• Suitable for low-pressure, high-temperature operation
• Precision-engineered for exact fit on the listed Ford applications
• High-grade steel tubing with zinc electroplating for corrosion and rust resistance
• Built to resist humidity, road salt, water, and grime exposure
• End 1 fitting type: ID hose
• End 2 fitting type: bubble flare, 3/8 in. fitting size
• 28.3 in. overall length
• CSM hose material

Vehicle Fitment

• Fits 2011-2016 Ford F-250 Super Duty, N/A, w/ Hydroboost, Upper
• Fits 2011-2016 Ford F-350 Super Duty, N/A, w/ Hydroboost, Upper
• Fits 2011 Ford F-350, N/A, w/ Hydroboost, Upper
• Fits 2013-2016 Ford F-350, N/A, w/ Hydroboost, Upper

This part cross-references Monroe Shocks & Struts (e.g., 5772) for the same application.

Detailed Description

Use the Sunsong 3404905 when replacing a worn or leaking power steering return hose on compatible Ford Super Duty trucks. This hose assembly is made for the return side of the steering system, where pressure is lower but heat and fluid exposure remain constant. The steel tubing is zinc-coated to help protect against corrosion, while the hose construction is selected for durability in demanding underhood conditions. For buyers searching for a Ford F-250 Super Duty power steering return hose or a Ford F-350 Super Duty upper return line hose with Hydroboost, this part number 3404905 is a direct-fit service solution.

Common Problems This Part Can Address

• Power steering fluid seepage at the return line
• Cracked or hardened hose material from heat exposure
• Corrosion on the steel line section
• Improper fit after a previous repair
• Noise or steering performance issues related to fluid loss

Installation Notes and Tips

Confirm the vehicle is equipped with Hydroboost before ordering. Verify the upper hose routing, end fitting style, and 3/8 in. bubble flare connection against the original part before installation. Inspect adjacent steering components, clamps, and mounting points for wear or corrosion so the replacement hose can seat correctly and maintain proper routing.

Quality Assurance

Sunsong states that this return hose assembly is engineered to exceed original equipment performance standards for return-side steering service and is built with corrosion-resistant materials for long-term durability in harsh environments.