HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3401785 Power Steering Pressure Line Hose Assembly
Part #: 3401785

Sunsong 3401785 Power Steering Pressure Line Hose Assembly

⚙️ 16 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, 325i, 325is, 325, 325e, and 325es
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Overview of Sunsong Power Steering Pressure Line Hose Assembly

The Sunsong 3401785 power steering pressure line hose assembly is designed specifically for BMW 325e, 325es, 325i, and 325is models. This hose assembly ensures reliable hydraulic fluid transfer within the power steering system, maintaining optimal steering performance.

  • Compatible with BMW 325e, 325es, 325i, and 325is models
  • Part number 3401785 for precise identification
  • 28.9 inches (734 mm) in length for exact fitment
  • Both ends feature 14 mm banjo fittings for secure connections
  • Constructed with durable CSM hose material for resistance to heat and pressure
  • No bracket included, designed for direct installation
  • Does not include a power steering switch port

Detailed Product Description and Specifications

The Sunsong 3401785 power steering pressure line hose assembly is engineered with CSM (chlorosulfonated polyethylene) hose material, known for its durability and resistance to heat, oil, and abrasion. Measuring 28.9 inches (734 mm) in length, this hose assembly features banjo fittings on both ends, each with a 14 mm diameter, ensuring a secure and leak-free connection within the power steering system. The absence of a bracket simplifies installation in compatible BMW 3 Series models, specifically the 325e, 325es, 325i, and 325is. This part does not include a power steering switch port, focusing solely on fluid transfer efficiency.

Common Applications and Problem Resolution

  • Replacement for worn or leaking power steering pressure hoses in BMW 325e, 325es, 325i, and 325is
  • Addresses issues such as power steering fluid leaks
  • Helps restore proper hydraulic pressure for smooth steering response
  • Prevents hose swelling or cracking due to heat and pressure exposure
  • Eliminates steering noise caused by compromised hose integrity

Installation Notes and Technical Tips

When installing the Sunsong 3401785 hose assembly, ensure that both 14 mm banjo fittings are properly seated and tightened to manufacturer torque specifications to prevent leaks. Since this assembly does not include a bracket, verify that the hose routing matches the original equipment to avoid contact with moving parts or heat sources. The hose material (CSM) requires careful handling to avoid kinks or sharp bends that could reduce service life. Refer to technical tip TT1000 for additional installation guidance.

Quality Assurance and Warranty Information

Sunsong power steering components are manufactured to meet or exceed OEM standards for durability and performance. The 3401785 hose assembly undergoes rigorous quality control to ensure resistance to pressure and temperature variations typical in power steering systems. While specific warranty details may vary, Sunsong products generally include a limited warranty against defects in materials and workmanship, providing confidence in long-term reliability for BMW 325e, 325es, 325i, and 325is owners.

BrandSunsong
Part Number3401785
End 1 Fitting Size (mm)14
End 1 Fitting Typebanjo
End 2 Fitting Size (mm)14
End 2 Fitting TypeBanjo
Hose Material 1CSM
Length (in)28.9
Length (mm)734
Tech TipTT1000

This part fits 16 vehicles. Search below:

YearMakeModelSubmodelDrive TypePositionNotes
1991BMW325iBaseRWDN/A
1991BMW325isBaseRWDN/A
1990BMW325iBaseRWDN/A
1990BMW325isBaseRWDN/A
1989BMW325iBaseRWDN/A
1989BMW325isBaseRWDN/A
1988BMW325iBaseRWDN/A
1988BMW325isBaseRWDN/A
1987BMW325eBaseN/A
1987BMW325esBaseN/A
1987BMW325iBaseN/A
1987BMW325isBaseN/A
1986BMW325eBaseN/A
1986BMW325esBaseN/A
1985BMW325eBaseN/A
1984BMW325eBaseN/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:

109-20423241112862532411131915324111344363241113715332411137856340178535888036-358880382371361979-2111

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