OE Quality
60-Day Returns

Sunsong 3404370 Power Steering Return Line Hose Assembly - Cooler Tube
Honda Odyssey Return Line Hose Assembly
Sunsong 3404370 is a power steering return line hose assembly for the cooler tube on 2005-2010 Honda Odyssey models. It is built for low-pressure, high-temperature return line service and follows exact-fit replacement requirements for a direct repair.
Key Features
- Fits 2005-2010 Honda Odyssey, cooler tube
- Max working pressure rated at 250 psi for return-side steering service
- Suitable for low-pressure, high-temperature operation
- Steel tubing with zinc electroplating for corrosion and rust resistance
- Precision engineered to match original fit and routing
- Includes required brackets, grommets, heat shields, bushings, and protective sleeves as needed to restore wearable components to original condition
Detailed Description
This Sunsong power steering return line hose assembly, part number 3404370, is made for the return circuit on the Honda Odyssey power steering system. It is engineered to OE dimensions for the 2005-2010 Honda Odyssey cooler tube application, helping maintain proper fluid return while withstanding heat, moisture, road salt, water, and grime exposure. This part cross-references Dayco 85049 for the same application.
Built with high-grade steel tubing and a zinc-coated finish, 3404370 is intended to replace worn or corroded return line hardware with a direct-fit assembly that follows the original routing and mounting points. The result is a cleaner repair for Honda Odyssey steering service where the return line has deteriorated or leaked.
What It Helps Fix
- Power steering fluid seepage from a damaged return hose
- Corrosion on the cooler tube or attached steel line
- Noise or poor steering feel caused by restricted fluid return
- Heat-related hose deterioration in the steering return circuit
- Fitment issues from bent, rusted, or worn original tubing
Installation Notes and Tips
Fits 2005-2010 Honda Odyssey, cooler tube. Confirm the routing, mounting points, and connection style against the original line before installation. Inspect adjacent steering components, clamps, and seals for wear so the repair addresses the full return-side condition. Part number 3404370 should be matched to the vehicle’s cooler tube configuration during service.
Quality Assurance
Sunsong manufactures this return hose assembly to exceed original equipment performance standards for return-line service. The zinc-plated steel construction is specified to improve resistance to corrosion and rust in harsh underbody conditions.
| Brand | Sunsong |
|---|---|
| Part Number | 3404370 |
| Tech Tip | Tt1000 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2010 | Honda | Odyssey | Cooler Tube | |
| 2009 | Honda | Odyssey | Cooler Tube | |
| 2008 | Honda | Odyssey | Cooler Tube | |
| 2007 | Honda | Odyssey | Cooler Tube | |
| 2006 | Honda | Odyssey | Cooler Tube | |
| 2005 | Honda | Odyssey | Cooler Tube |
* 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.