HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3401681 Power Steering Pressure Line Hose Assembly - Hydroboost To Gear
Part #: 3401681

Sunsong 3401681 Power Steering Pressure Line Hose Assembly - Hydroboost To Gear

Hydroboost To Gear
7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, Excursion, F-250 Super Duty, and F-350 Super Duty
Easy Returns — Return within 60 days for a full refund
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Power Steering Pressure Line Hose Assembly Overview

The Sunsong 3401681 power steering pressure line hose assembly is designed for reliable hydraulic fluid transfer in Ford heavy-duty trucks. Specifically compatible with Ford Excursion, F-250 Super Duty, and F-350 Super Duty models, this hose assembly ensures proper steering system performance under demanding conditions.

  • Compatible with Ford Excursion, F-250 Super Duty, and F-350 Super Duty
  • Part number 3401681 for precise identification
  • 38.1 inches (967 mm) in length for exact fitment
  • Constructed with durable CSM hose material for resistance to heat and pressure
  • Male o-ring fittings on both ends: 1/2 inch and 16 mm sizes
  • No bracket included, designed for direct installation
  • Does not include a power steering switch port

Detailed Product Description

This Sunsong power steering pressure line hose assembly (part number 3401681) is engineered to meet the specifications required by Ford heavy-duty trucks such as the Excursion, F-250 Super Duty, and F-350 Super Duty. The hose is made from chlorosulfonated polyethylene (CSM), a material known for its excellent resistance to heat, oil, and abrasion, which is critical for maintaining hydraulic fluid integrity under high pressure.

The assembly features male o-ring fittings on both ends, with a 1/2 inch fitting on one end and a 16 mm fitting on the other, ensuring a secure and leak-free connection within the power steering system. At 38.1 inches (967 mm) in length, this hose assembly is designed to fit precisely without the need for modifications. The absence of a bracket and power steering switch port simplifies installation and reduces potential failure points.

Common Applications and Issues Addressed

  • Replacement of worn or leaking power steering pressure lines in Ford Excursion, F-250 Super Duty, and F-350 Super Duty
  • Resolving power steering fluid leaks that cause steering difficulty or noise
  • Addressing hose degradation due to heat and pressure exposure
  • Eliminating pressure loss that results in poor steering response
  • Preventing contamination of the power steering system from damaged hoses

Installation Notes and Tips

  • Ensure the vehicle is safely supported and the steering system is depressurized before installation
  • Verify the hose length and fitting sizes (1/2 inch and 16 mm male o-ring) match the original equipment
  • Inspect all connections for proper sealing to prevent leaks
  • Use recommended torque specifications for fittings to avoid damage
  • Check for clearance and routing to avoid contact with moving parts or heat sources

Quality Assurance and Warranty

Sunsong power steering hoses are manufactured to meet or exceed OEM standards for durability and performance. The 3401681 hose assembly undergoes rigorous testing to ensure resistance to pressure, heat, and fluid compatibility. While specific warranty details may vary, Sunsong products typically include a limited warranty against defects in material and workmanship. Consult product documentation or authorized sources for exact warranty terms.

BrandSunsong
Part Number3401681
End 1 Fitting Size (in)1/2
End 1 Fitting TypeMale O-Ring
End 2 Fitting Size (mm)16
End 2 Fitting TypeMale O-Ring
Hose Material 1CSM
Length (in)38.1
Length (mm)967
Tech TipTT1000|TT1001

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2005FordExcursionHydroboost To GearReplaces Both Upper And Lower Power Steering Pressure Line Hose Assembly
2004FordExcursionHydroboost To GearReplaces Both Upper And Lower Power Steering Pressure Line Hose Assembly
2004FordF-250 Super DutyHydroboost To GearReplaces Both Upper And Lower Power Steering Pressure Line Hose Assembly
2004FordF-350 Super DutyHydroboost To GearReplaces Both Upper And Lower Power Steering Pressure Line Hose Assembly
2003FordExcursionHydroboost To GearReplaces Both Upper And Lower Power Steering Pressure Line Hose Assembly
2003FordF-250 Super DutyHydroboost To GearReplaces Both Upper And Lower Power Steering Pressure Line Hose Assembly
2003FordF-350 Super DutyHydroboost To GearReplaces Both Upper And Lower Power Steering Pressure Line Hose Assembly

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

129135755036-3575503C3Z3A714BB4C343F524BC80352979-2303

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.