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Sunsong 3403643 Power Steering Reservoir Hose - Reservoir To Pump
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.
| Brand | Sunsong |
| Part Number | 3403643 |
| End 1 Fitting Size (mm) | 16 |
| End 1 Fitting Type | Banjo |
| End 2 Fitting Size (mm) | 15 |
| End 2 Fitting Type | Id hose |
| Hose Material 1 | Cpe |
| Length (in) | 12.6 |
| Length (mm) | 320 |
| Tech Tip | Tt1000 |
This part fits 18 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2000 | BMW | Z3 | M Roadster | N/A | |
| 2000 | BMW | Z3 | M Coupe | N/A | |
| 1999 | BMW | M3 | N/A | ||
| 1999 | BMW | Z3 | M Roadster | N/A | |
| 1999 | BMW | Z3 | M Coupe | N/A | |
| 1998 | BMW | M3 | N/A | ||
| 1998 | BMW | Z3 | M Roadster | N/A | |
| 1997 | BMW | M3 | N/A | ||
| 1996 | BMW | M3 | N/A | ||
| 1995 | BMW | 325i | N/A | ||
| 1995 | BMW | 325is | N/A | ||
| 1995 | BMW | M3 | N/A | ||
| 1994 | BMW | 318i | Reservoir To Pump | ||
| 1994 | BMW | 318is | Reservoir To Pump | ||
| 1993 | BMW | 318i | Reservoir To Pump | ||
| 1993 | BMW | 318is | Reservoir To Pump | ||
| 1992 | BMW | 318i | Reservoir To Pump | ||
| 1992 | BMW | 318is | Reservoir 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.