HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3401977 Power Steering Pressure Line Hose Assembly
Part #: 3401977

Sunsong 3401977 Power Steering Pressure Line Hose Assembly

⚙️ 12 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, F-250 Super Duty, F-350 Super Duty, and Excursion
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Reliable Power Steering Pressure Line Hose Assembly

The Sunsong 3401977 power steering pressure line hose assembly is designed for Ford Excursion, F-250 Super Duty, and F-350 Super Duty models. Engineered to meet OEM specifications, this hose assembly ensures consistent hydraulic pressure for smooth steering performance.

  • Compatible with Ford Excursion, F-250 Super Duty, and F-350 Super Duty
  • 24.4 inches (619 mm) length for precise fitment
  • End 1: 1/2 inch male o-ring fitting
  • End 2: 16 mm swivel o-ring fitting
  • Durable CSM hose material reinforced with steel
  • No bracket included
  • Part number 3401977 for accurate identification

Durable Construction and Precise Fitment

This power steering pressure line hose assembly from Sunsong features a robust combination of chlorosulfonated polyethylene (CSM) hose material and steel reinforcement, providing resistance to heat, pressure, and fluid degradation. The 1/2 inch male o-ring fitting on one end and 16 mm swivel o-ring fitting on the other ensure secure connections within the power steering system. With a length of 24.4 inches (619 mm), this hose assembly is tailored to fit specific Ford heavy-duty trucks, maintaining proper hydraulic flow and steering response.

Applications and Common Issues Addressed

  • Replaces worn or leaking power steering pressure lines on Ford Excursion, F-250 Super Duty, and F-350 Super Duty
  • Eliminates power steering fluid leaks that cause steering difficulty
  • Prevents loss of hydraulic pressure affecting steering performance
  • Resolves hose swelling or cracking due to age or heat exposure
  • Addresses noise or vibration caused by faulty pressure line assemblies

Installation Notes and Tips

  • Ensure the vehicle is safely lifted and supported before installation
  • Drain power steering fluid to avoid spills during hose replacement
  • Verify fitting sizes: 1/2 inch male o-ring and 16 mm swivel o-ring
  • Inspect related components such as pumps and reservoirs for wear
  • Follow torque specifications for fittings to prevent leaks
  • Consult technical tips Tt1000, Tt1001, and Tt1002 for additional guidance

Quality Assurance and Warranty

Sunsong power steering pressure line hose assemblies are manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Sunsong products typically undergo rigorous quality control to ensure reliable operation in Ford Excursion, F-250 Super Duty, and F-350 Super Duty vehicles. Using part number 3401977 guarantees compatibility and helps maintain the integrity of your vehicle's steering system.

BrandSunsong
Part Number3401977
End 1 Fitting Size (in)1/2
End 1 Fitting TypeMale O-Ring
End 2 Fitting Size (mm)16
End 2 Fitting TypeSwivel O-Ring
Hose Material 1CSM
Hose Material 2Steel
Length (in)24.4
Length (mm)619
Tech TipTT1000|TT1001|TT1002

This part fits 12 vehicles. Search below:

YearMakeModelPositionNotes
2003FordF-250 Super DutyN/A
2003FordF-350 Super DutyN/A
2002FordExcursionN/A
2002FordF-250 Super DutyN/A
2002FordF-350 Super DutyN/A
2001FordExcursionN/A
2001FordF-250 Super DutyN/A
2001FordF-350 Super DutyN/A
2000FordExcursionN/A
2000FordF-250 Super DutyN/A
2000FordF-350 Super DutyN/A
1999FordF-350 Super DutyN/A

* 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:

134635288036-35288080321979-1212F81Z3A719JA

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