/live/media/S5/S5_3403685_Fro.jpg)
OE Quality
60-Day Returns
/live/media/S5/S5_3403685_Fro.jpg)
/live/media/S5/S5_3403685_Ang.jpg)
/live/media/S5/S5_3403685_Lef.jpg)
/live/media/S5/S5_3403685_Rig.jpg)
Sunsong 3403685 Power Steering Return Line Hose Assembly - Pipe To Reservoir
Overview of Sunsong Power Steering Return Line Hose Assembly
The Sunsong 3403685 power steering return line hose assembly is designed for reliable fluid return in power steering systems. Engineered to fit select INFINITI and Nissan models, this hose assembly ensures proper steering performance and fluid flow.
- Compatible with INFINITI Armada, QX56, and Nissan Pathfinder Armada, TITAN
- Length: 17.6 inches (446 mm) for precise fitment
- End fittings: 3/8 inch inner diameter hose connections on both ends
- Durable CSM (chlorosulfonated polyethylene) hose material for resistance to heat and wear
- Part number 3403685 for accurate identification and replacement
Detailed Product Description and Specifications
This power steering return line hose assembly from Sunsong features a 17.6-inch length, making it suitable for the specified INFINITI and Nissan vehicles. Both ends of the hose have 3/8 inch inner diameter hose fittings, designed as ID hose connections to ensure secure and leak-free attachment to the power steering system. The hose material is CSM, known for its durability and resistance to heat, oil, and abrasion, which helps maintain system integrity under demanding driving conditions.
Part number 3403685 is engineered to meet OEM specifications for the INFINITI Armada, QX56, and Nissan Pathfinder Armada and TITAN models, providing a direct replacement for worn or damaged return line hoses. This ensures consistent hydraulic fluid return from the steering gear back to the power steering pump reservoir, maintaining proper system pressure and steering responsiveness.
Applications and Common Issues Addressed
- Replacement for leaking or cracked power steering return line hoses
- Resolves low power steering fluid pressure and steering difficulty
- Prevents fluid contamination and loss due to hose degradation
- Addresses noise or whining from air entering the power steering system
- Helps maintain proper fluid circulation for smooth steering operation
Installation Notes and Technical Tips
When installing the Sunsong 3403685 power steering return line hose assembly, ensure the hose length and fitting sizes match the vehicle’s original equipment. The 3/8 inch ID hose fittings on both ends require secure clamping to prevent leaks. Follow the vehicle manufacturer’s torque specifications for hose clamps and inspect the power steering system for any additional wear or damage during replacement. The included technical tip (TT1000) suggests verifying hose routing to avoid kinks or contact with hot engine components.
Quality Assurance and Warranty Information
Sunsong power steering hoses are manufactured to meet or exceed OEM standards for durability and performance. The CSM hose material provides resistance to heat, oil, and abrasion, contributing to long service life. Part number 3403685 undergoes quality control testing to ensure proper fit and function in compatible INFINITI and Nissan models. Warranty coverage details should be confirmed with the product documentation or supplier.
| Brand | Sunsong |
| Part Number | 3403685 |
| End 1 Fitting Size (in) | 3/8 |
| End 1 Fitting Type | ID Hose |
| End 2 Fitting Size (in) | 3/8 |
| End 2 Fitting Type | ID Hose |
| Hose Material 1 | CSM |
| Length (in) | 17.6 |
| Length (mm) | 446 |
| Tech Tip | TT1000 |
This part fits 30 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2015 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2015 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2014 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2014 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2013 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2013 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2012 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2012 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2011 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2011 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2010 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2010 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2009 | INFINITI | QX56 | Pipe To Reservoir | From Pipe 3 |
| 2009 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2009 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2008 | INFINITI | QX56 | Pipe To Reservoir | From Pipe 3 |
| 2008 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2008 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2007 | INFINITI | QX56 | Pipe To Reservoir | From Pipe 3 |
| 2007 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2007 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2006 | INFINITI | QX56 | Pipe To Reservoir | From Pipe 3 |
| 2006 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2006 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2005 | INFINITI | QX56 | Pipe To Reservoir | From Pipe 3 |
| 2005 | Nissan | Armada | Pipe To Reservoir | From Pipe 3 |
| 2005 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
| 2004 | INFINITI | QX56 | Pipe To Reservoir | From Pipe 3 |
| 2004 | Nissan | Pathfinder Armada | Pipe To Reservoir | From Pipe 3 |
| 2004 | Nissan | TITAN | Pipe To Reservoir | From Pipe 3 |
* 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.