HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3403708 Power Steering Pressure Line Hose Assembly
Part #: 3403708

Sunsong 3403708 Power Steering Pressure Line Hose Assembly

13 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$83.16Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mercedes-Benz, ML350 and ML55 AMG
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Sunsong Power Steering Pressure Line Hose Assembly

The Sunsong 3403708 power steering pressure line hose assembly is designed for select Mercedes-Benz models, including the ML55 AMG, ML320, ML350, and ML500. This hose assembly ensures reliable fluid transfer within the power steering system, maintaining optimal steering performance.

  • Compatible with Mercedes-Benz ML55 AMG, ML320, ML350, and ML500
  • Part number 3403708 for precise identification
  • 38.6 inches (980 mm) in length for exact fitment
  • End 1 fitting: 16 mm male o-ring
  • End 2 fitting: 16 mm banjo type
  • Constructed with durable CSM hose material
  • No bracket included
  • No power steering switch port

Detailed Product Description

The Sunsong 3403708 power steering pressure line hose assembly is engineered with a 16 mm male o-ring fitting on one end and a 16 mm banjo fitting on the other, providing secure and leak-resistant connections. The hose is made from CSM (chlorosulfonated polyethylene) material, known for its resistance to heat, oil, and abrasion, which is critical for maintaining the integrity of the power steering system under demanding conditions. Measuring 38.6 inches (980 mm) in length, this hose assembly is designed to fit the power steering system of Mercedes-Benz ML55 AMG, ML320, ML350, and ML500 models without the need for modifications. The absence of a bracket and power steering switch port simplifies installation and compatibility.

Common Applications and Issues Addressed

  • Replacement of worn or leaking power steering pressure hoses
  • Resolving power steering fluid leaks causing steering difficulty
  • Eliminating hose swelling or cracking due to age or heat exposure
  • Restoring proper hydraulic pressure for smooth steering response
  • Preventing contamination and maintaining system pressure integrity

Installation Notes and Tips

  • Ensure the vehicle is securely lifted and supported before beginning installation
  • Drain power steering fluid to prevent spills during hose removal
  • Verify the 16 mm male o-ring and banjo fittings align correctly with the vehicle’s power steering components
  • Use appropriate torque specifications for fittings to avoid leaks
  • Inspect related components such as clamps and seals during installation
  • Refer to technical tip TT1000 for additional guidance

Quality Assurance and Warranty

Sunsong power steering hoses are manufactured to meet or exceed OEM standards for durability and performance. The 3403708 hose assembly undergoes rigorous quality control to ensure reliable operation within the specified Mercedes-Benz models. While specific warranty details may vary, Sunsong products typically include coverage against manufacturing defects to provide confidence in long-term use.

BrandSunsong
Part Number3403708
End 1 Fitting Size (mm)16
End 1 Fitting TypeMale O-Ring
End 2 Fitting Size (mm)16
End 2 Fitting TypeBanjo
Hose Material 1CSM
Length (in)38.6
Length (mm)980
Tech TipTT1000

This part fits 13 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2005Mercedes-BenzML350BaseN/Aw/ Banjo Fitting at Gear
2005Mercedes-BenzML500Pump To Gear
2004Mercedes-BenzML350BaseN/Aw/ Banjo Fitting at Gear
2004Mercedes-BenzML500Pump To Gear
2003Mercedes-BenzML320Pump To Gear
2003Mercedes-BenzML350BaseN/Aw/ Banjo Fitting at Gear
2003Mercedes-BenzML500Pump To Gear
2003Mercedes-BenzML55 AMGN/Aw/ Banjo Fitting at Gear
2002Mercedes-BenzML320Pump To Gear
2002Mercedes-BenzML500Pump To Gear
2002Mercedes-BenzML55 AMGN/Aw/ Banjo Fitting at Gear
2001Mercedes-BenzML320Pump To Gear
2001Mercedes-BenzML55 AMGN/Aw/ Banjo Fitting at Gear

* 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:

16346042243403708352575556580967PSH0229

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