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Sunsong 3404129 Power Steering Pressure Line Hose Assembly
Overview of Sunsong Power Steering Pressure Line Hose Assembly
The Sunsong 3404129 power steering pressure line hose assembly is designed for select BMW models, including the 128i, 228i, 323i, 325i, 328i, 328i xDrive, and 330i. This hose assembly ensures reliable fluid transfer within the power steering system, maintaining optimal steering performance.
- Compatible with BMW 128i, 228i, 323i, 325i, 328i, 328i xDrive, and 330i models
- Part number 3404129 for precise identification
- 61 inches (1549 mm) in length for proper fitment
- Constructed with durable CSM hose material
- Banjo fitting type on both ends with 14 mm and 16 mm sizes
- No bracket or power steering switch port included
Detailed Product Description
The Sunsong 3404129 power steering pressure line hose assembly is engineered with high-quality chlorosulfonated polyethylene (CSM) material, providing resistance to heat, pressure, and fluid degradation. Measuring 61 inches (1549 mm) in length, this hose assembly features banjo fittings on both ends—14 mm on one end and 16 mm on the other—to ensure a secure and leak-free connection within the power steering system. The absence of a bracket simplifies installation in compatible BMW models, while the design excludes a power steering switch port, focusing solely on fluid transfer efficiency.
Applications and Common Issues Addressed
- Replacement for worn or leaking power steering pressure hoses in BMW 128i, 228i, 323i, 325i, 328i, 328i xDrive, and 330i
- Resolves power steering fluid leaks that cause steering difficulty or noise
- Prevents pressure loss in the power steering system for consistent steering response
- Addresses hose degradation due to heat and chemical exposure
- Eliminates potential contamination from cracked or damaged hoses
Installation Notes and Tips
When installing the Sunsong 3404129 hose assembly, ensure the banjo fittings are properly aligned and torqued to manufacturer specifications to prevent leaks. The hose length of 61 inches (1549 mm) is designed for direct replacement in compatible BMW models without modification. Since this assembly does not include a bracket or power steering switch port, verify existing mounting points and switch connections before installation.
Quality Assurance and Warranty
Sunsong manufactures this power steering pressure line hose assembly to meet or exceed OEM standards for durability and performance. The use of CSM hose material ensures resistance to common automotive fluids and environmental factors. While specific warranty details are not provided, Sunsong products typically undergo rigorous quality control to support reliable operation in BMW vehicles.
| Brand | Sunsong |
| Part Number | 3404129 |
| Bracket (Y/N) | N |
| End 1 Fitting Size (mm) | 14 |
| End 1 Fitting Type | Banjo |
| End 2 Fitting Size (mm) | 16 |
| End 2 Fitting Type | Banjo |
| Hose Material 1 | Csm |
| Length (in) | 61 |
| Length (mm) | 1549 |
| PS Switch Port (Y/N) | N |
| Tech Tip | Tt1000 |
This part fits 29 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2014 | BMW | 228i | N/A | Exc. Active Steering |
| 2013 | BMW | 128i | N/A | Exc. Active Steering |
| 2013 | BMW | 328i | N/A | Exc. Active Steering |
| 2012 | BMW | 128i | N/A | Exc. Active Steering |
| 2012 | BMW | 325i | N/A | Exc. Active Stg., w/ LH Drive |
| 2012 | BMW | 328i | N/A | Exc. Active Steering |
| 2011 | BMW | 128i | N/A | Exc. Active Steering |
| 2011 | BMW | 323i | N/A | Exc. Active Stg. |
| 2011 | BMW | 325i | N/A | Exc. Active Stg., w/ LH Drive |
| 2011 | BMW | 328i | N/A | Exc. Active Steering |
| 2010 | BMW | 128i | N/A | Exc. Active Steering |
| 2010 | BMW | 323i | N/A | Exc. Active Stg. |
| 2010 | BMW | 325i | N/A | Exc. Active Stg., w/ LH Drive |
| 2010 | BMW | 328i | N/A | Exc. Active Steering |
| 2009 | BMW | 128i | N/A | Exc. Active Steering |
| 2009 | BMW | 323i | N/A | Exc. Active Stg. |
| 2009 | BMW | 325i | N/A | Exc. Active Stg. |
| 2009 | BMW | 328i | N/A | Exc. Active Steering |
| 2009 | BMW | 328i xDrive | N/A | Exc. Active Steering |
| 2008 | BMW | 128i | N/A | Exc. Active Steering |
| 2008 | BMW | 323i | N/A | Exc. Active Stg. |
| 2008 | BMW | 325i | N/A | Exc. Active Stg. |
| 2008 | BMW | 328i | N/A | Exc. Active Steering |
| 2007 | BMW | 323i | N/A | Exc. Active Stg. |
| 2007 | BMW | 325i | N/A | Exc. Active Stg. |
| 2007 | BMW | 328i | N/A | Exc. Active Steering |
| 2006 | BMW | 323i | N/A | Exc. Active Stg. |
| 2006 | BMW | 325i | N/A | Exc. Active Steering (Hose is manufactured with built-in Silencer for noise elimination) |
| 2006 | BMW | 330i | N/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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.