HomeSteering > Power Steering Hoses, Pumps, and Related ComponentsSunsong 3403643 Power Steering Reservoir Hose - Reservoir To Pump
Part #: 3403643

Sunsong 3403643 Power Steering Reservoir Hose - Reservoir To Pump

Reservoir To Pump
⚙️ 18 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, 318i, 318is, 325i, 325is, M3, and Z3
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Overview of Sunsong Power Steering Reservoir Hose 3403643

The Sunsong Power Steering Reservoir Hose 3403643 is designed for reliable fluid transfer in BMW power steering systems. This hose is compatible with several BMW models including the 318i, 318is, 325i, 325is, M3, and Z3, ensuring proper fit and function.

  • End 1 fitting size: 16 mm banjo type
  • End 2 fitting size: 15 mm id hose type
  • Hose material: CPE (chlorinated polyethylene) for durability
  • Length: 12.6 inches (320 mm)
  • Tech Tip: TT1000 for installation guidance

Detailed Product Description

This power steering reservoir hose from Sunsong is engineered with a 16 mm banjo fitting on one end and a 15 mm id hose fitting on the other, providing a secure and leak-resistant connection within the power steering system. Constructed from chlorinated polyethylene (CPE), the hose offers resistance to heat, pressure, and common automotive fluids, making it suitable for the demanding environment of BMW power steering assemblies. With a length of 12.6 inches (320 mm), it fits precisely in the designated routing for models such as the BMW 318i, 318is, 325i, 325is, M3, and Z3.

Compatible BMW Models and Applications

This Sunsong power steering reservoir hose 3403643 is compatible with the following BMW vehicles:

  • BMW 318i and 318is
  • BMW 325i and 325is
  • BMW M3
  • BMW Z3

It is designed to maintain proper fluid flow between the power steering reservoir and pump, ensuring smooth steering performance and system reliability.

Common Issues Addressed by This Hose

  • Leaking or cracked power steering reservoir hoses
  • Loss of power steering fluid pressure
  • Unusual steering noise due to fluid loss
  • Reduced steering responsiveness
  • Preventing contamination and fluid degradation in the power steering system

Installation Notes and Tips

When installing the Sunsong power steering reservoir hose 3403643, ensure the banjo fitting (16 mm) and id hose fitting (15 mm) are properly seated and secured to prevent leaks. Follow the Tech Tip TT1000 for detailed installation guidance. Inspect the hose routing to avoid kinks or contact with hot engine components. Proper installation will help maintain system integrity and steering performance.

Quality Assurance and Warranty

Sunsong manufactures this power steering reservoir hose to meet OEM specifications for fit and function. The use of CPE material ensures durability under typical operating conditions. While specific warranty details are not provided, Sunsong products generally adhere to industry standards for quality and reliability.

BrandSunsong
Part Number3403643
End 1 Fitting Size (mm)16
End 1 Fitting TypeBanjo
End 2 Fitting Size (mm)15
End 2 Fitting TypeId hose
Hose Material 1Cpe
Length (in)12.6
Length (mm)320
Tech TipTt1000

This part fits 18 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2000BMWZ3M RoadsterN/A
2000BMWZ3M CoupeN/A
1999BMWM3N/A
1999BMWZ3M RoadsterN/A
1999BMWZ3M CoupeN/A
1998BMWM3N/A
1998BMWZ3M RoadsterN/A
1997BMWM3N/A
1996BMWM3N/A
1995BMW325iN/A
1995BMW325isN/A
1995BMWM3N/A
1994BMW318iReservoir To Pump
1994BMW318isReservoir To Pump
1993BMW318iReservoir To Pump
1993BMW318isReservoir To Pump
1992BMW318iReservoir To Pump
1992BMW318isReservoir To Pump

* 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:

324111384193403643359202001080603PSH0188

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