Sunsong 3404371 Power Steering Return Line Hose Assembly - Cooler To Reservoir

Brand Sunsong 3404371
Position Cooler To Reservoir
Tech Tip Tt1000
Fits Ford · 8 vehicles

OE-level performance. Return hose assembly exceeds original equipment performance standards.

Zinc-coated steel tubing. Resists corrosion and rust from humidity, road salt, water, and grime.

Precision engineered. Includes required brackets, grommets, heat shields, bushings, and sleeves.

Cross-references Gates 366916, Walker Exhaust 55525 and 3F2Z3691AA for the same application. See all 6.

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Power Steering Return Hose for Ford Freestar

The Sunsong 3404371 power steering return line hose assembly is built for low-pressure, high-temperature return-side service. It is a direct-fit replacement for the cooler-to-reservoir routing on 2004-2007 Ford Freestar models, with corrosion-resistant steel tubing and precision-engineered fitment.

Key Features

  • Fits 2004-2007 Ford Freestar, cooler to reservoir
  • Max working pressure rated at 250 psi for return-line service
  • Built for low-pressure, high-temperature power steering operation
  • High-grade steel tubing with zinc electroplating for rust and corrosion resistance
  • Precision-engineered to exact fit for the application
  • Includes required brackets, grommets, heat shields, bushings, and protective sleeves as needed to restore wearable components to original condition

Detailed Description

Sunsong 3404371 is a power steering return line hose assembly for the Ford Freestar, engineered for the cooler to reservoir route. It is made to meet or exceed original equipment performance standards in return-side steering service, where heat and fluid exposure can affect hose condition over time. The steel tubing is zinc plated to help resist road salt, moisture, grime, and humidity, making it a practical replacement for worn or corroded lines on 2004, 2005, 2006, and 2007 Ford Freestar vehicles. This part cross-references Gates 366916 for the same application.

Common Problems This Part Can Address

  • Power steering fluid seepage from a deteriorated return hose
  • Corrosion on the original cooler-to-reservoir line
  • Noise or steering effort caused by restricted return flow
  • Heat-related hose wear in the steering return circuit
  • Fitment issues after replacing damaged factory tubing

Installation Notes and Tips

Verify routing before installation and match the cooler-to-reservoir configuration on your Ford Freestar. Inspect adjacent brackets, bushings, and sleeves during replacement so the new hose seats correctly and the line is protected from vibration and heat. Confirm the vehicle year and application against the part number 3404371 before installation.

Quality Assurance

Sunsong manufactures this hose assembly with OE-style fitment and corrosion-resistant materials for steering return service. Tech Tip: TT1000.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2007FordFreestarCooler To Reservoir
2007MercuryMontereyCooler To Reservoir
2006FordFreestarCooler To Reservoir
2006MercuryMontereyCooler To Reservoir
2005FordFreestarCooler To Reservoir
2005MercuryMontereyCooler To Reservoir
2004FordFreestarCooler To Reservoir
2004MercuryMontereyCooler To Reservoir
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Gates — 366916Walker Exhaust — 555253F2Z3691AA4F2Z3A713CA5F2Z3A713AB93405