HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3403647 Power Steering Pressure Line Hose Assembly
Part #: 3403647

Sunsong 3403647 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: BMW, M3 and Z4
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Power Steering Pressure Line Hose Assembly Overview

The Sunsong 3403647 power steering pressure line hose assembly is designed specifically for BMW M3 and Z4 models. Engineered with durable CSM hose material and banjo fittings on both ends, this 50.25-inch hose ensures reliable fluid transfer within the power steering system.

  • Compatible with BMW M3 and Z4 models
  • Length: 50.25 inches (1276 mm) for precise fitment
  • End 1 fitting: 14 mm banjo type
  • End 2 fitting: 16 mm banjo type
  • Constructed with CSM hose material for durability
  • No bracket or power steering switch port included

Detailed Product Description

The Sunsong 3403647 power steering pressure line hose assembly is built to meet the specifications required by BMW M3 and Z4 vehicles. Featuring banjo fittings on both ends—14 mm on one side and 16 mm on the other—this hose provides a secure and leak-resistant connection to the power steering pump and steering gear. The CSM (chlorosulfonated polyethylene) hose material offers resistance to heat, oil, and abrasion, making it suitable for the demanding environment of the engine bay. With a length of 50.25 inches (1276 mm), this hose assembly is designed to fit precisely without the need for modifications.

Common Applications and Problem Solving

  • Replaces worn or leaking power steering pressure hoses on BMW M3 and Z4
  • Addresses power steering fluid leaks causing steering difficulty
  • Restores proper hydraulic pressure for smooth steering response
  • Prevents hose swelling or cracking due to heat and fluid exposure
  • Eliminates noise or whining caused by compromised pressure lines

Installation Notes and Tips

This power steering pressure line hose assembly does not include a mounting bracket or power steering switch port. Ensure the hose length and fitting sizes (14 mm and 16 mm banjo fittings) match your vehicle’s requirements before installation. Follow manufacturer torque specifications for banjo bolt fittings to avoid leaks. It is recommended to inspect related components such as seals and clamps during replacement to maintain system integrity.

Quality Assurance and Warranty

Sunsong power steering components are manufactured to meet OEM standards for fit and function. The 3403647 hose assembly undergoes quality checks to ensure durability and performance in BMW M3 and Z4 applications. Warranty details are available through the manufacturer or authorized distributors.

BrandSunsong
Part Number3403647
Bracket (Y/N)N
End 1 Fitting Size (mm)14
End 1 Fitting TypeBanjo
End 2 Fitting Size (mm)16
End 2 Fitting TypeBanjo
Hose Material 1Csm
Length (in)50.25
Length (mm)1276
PS Switch Port (Y/N)N
Tech TipTt1000

This part fits 12 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2008BMWZ4M RoadsterN/A
2008BMWZ4M CoupeN/A
2007BMWZ4M RoadsterN/A
2007BMWZ4M CoupeN/A
2006BMWM3N/A
2006BMWZ4M RoadsterN/A
2006BMWZ4M CoupeN/A
2005BMWM3N/A
2004BMWM3N/A
2003BMWM3N/A
2002BMWM3N/A
2001BMWM3N/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:

32412229361324122838933403647352408541580817PSH0121P

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