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Sunsong 3402401 Power Steering Return Line Hose Assembly - Gear To Cooler
Overview of Sunsong Power Steering Return Line Hose Assembly
The Sunsong 3402401 power steering return line hose assembly is designed for reliable fluid return in power steering systems. Compatible with select Buick, Chevrolet, GMC, Isuzu, and Saab models, this hose assembly ensures proper steering performance and fluid flow.
- Length: 55 inches (1397 mm) for optimal routing
- Hose Material: Durable CSM (Chlorosulfonated Polyethylene) for resistance to heat and wear
- End 1 Fitting: 3/8 inch ID hose connection
- End 2 Fitting: 3/8 inch male quick connect fitting for secure attachment
- No bracket included, designed for direct installation
- No power steering switch port included
Detailed Product Description
The Sunsong 3402401 power steering return line hose assembly is engineered to meet the specifications required by various GM and related vehicles, including Buick 9-7x, Chevrolet Trailblazer and SSR, GMC Envoy series, Isuzu Ascender, and Saab 9-7x. Constructed from CSM material, this hose offers resistance to heat, ozone, and hydraulic fluids, ensuring durability under demanding operating conditions. The 55-inch length provides sufficient reach for proper routing within the engine bay without the need for modifications.
The hose features a 3/8 inch ID hose fitting on one end and a 3/8 inch male quick connect fitting on the other, facilitating a secure and leak-resistant connection to the power steering system. The absence of a bracket simplifies installation in vehicles where the hose is secured by existing mounts. This assembly does not include a power steering switch port, aligning with original equipment specifications for the listed models.
Compatible Vehicles and Applications
- Buick 9-7x
- Chevrolet Trailblazer, Trailblazer EXT, SSR
- GMC Envoy, Envoy XL, Envoy XUV, Rainier
- Isuzu Ascender
- Saab 9-7x
This power steering return line hose assembly is intended for use in power steering systems to return fluid from the steering gear back to the reservoir, maintaining proper hydraulic pressure and steering responsiveness.
Common Issues Addressed by This Hose Assembly
- Leaking or cracked power steering return hoses causing fluid loss
- Reduced steering performance due to damaged or worn hoses
- Power steering fluid contamination from deteriorated hose material
- Noise or whining from air entering the power steering system
- Preventing overheating and hose failure from inadequate material resistance
Installation Notes and Tips
- Ensure the vehicle is cool and pressure is relieved from the power steering system before installation
- Verify hose routing matches original equipment to avoid kinks or interference
- Use appropriate tools to disconnect and connect fittings without damaging quick connect ends
- Check for leaks after installation by running the engine and turning the steering wheel fully in both directions
- Refer to technical tips TT1000 and TT1005 for additional installation guidance
Quality Assurance and Warranty
Sunsong power steering hoses are manufactured to meet or exceed OEM standards for fit, form, and function. The 3402401 hose assembly undergoes rigorous quality control to ensure durability and leak-free performance. While specific warranty details may vary, Sunsong products typically include a limited warranty against defects in material and workmanship. Consult product documentation or supplier for exact warranty terms.
| Brand | Sunsong |
| Part Number | 3402401 |
| End 1 Fitting Size (in) | 3/8 |
| End 1 Fitting Type | ID Hose |
| End 2 Fitting Size (in) | 3/8 |
| End 2 Fitting Type | Male Quick Connect |
| Hose Material 1 | CSM |
| Length (in) | 55 |
| Length (mm) | 1397 |
| Tech Tip | TT1000|TT1005 |
This part fits 36 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | Gear To Cooler | |
| 2009 | GMC | Envoy | Gear To Cooler | |
| 2009 | Saab | 9-7x | Gear To Cooler | |
| 2008 | Chevrolet | Trailblazer | Gear To Cooler | |
| 2008 | GMC | Envoy | Gear To Cooler | |
| 2008 | Saab | 9-7x | Gear To Cooler | |
| 2007 | Buick | Rainier | Gear To Cooler | |
| 2007 | Chevrolet | Trailblazer | Gear To Cooler | |
| 2007 | GMC | Envoy | Gear To Cooler | |
| 2007 | Saab | 9-7x | Gear To Cooler | |
| 2006 | Buick | Rainier | Gear To Cooler | |
| 2006 | Chevrolet | SSR | Gear To Cooler | |
| 2006 | Chevrolet | Trailblazer | Gear To Cooler | |
| 2006 | Chevrolet | Trailblazer EXT | Gear To Cooler | |
| 2006 | GMC | Envoy | Gear To Cooler | |
| 2006 | GMC | Envoy XL | Gear To Cooler | |
| 2006 | Isuzu | Ascender | Gear To Cooler | |
| 2006 | Saab | 9-7x | Gear To Cooler | |
| 2005 | Buick | Rainier | Gear To Cooler | |
| 2005 | Chevrolet | SSR | Gear To Cooler | |
| 2005 | Chevrolet | Trailblazer EXT | Gear To Cooler | |
| 2005 | GMC | Envoy | Gear To Cooler | |
| 2005 | GMC | Envoy XL | Gear To Cooler | |
| 2005 | GMC | Envoy XUV | Gear To Cooler | |
| 2005 | Isuzu | Ascender | Gear To Cooler | |
| 2005 | Saab | 9-7x | Gear To Cooler | |
| 2004 | Buick | Rainier | Gear To Cooler | |
| 2004 | Chevrolet | SSR | Gear To Cooler | |
| 2004 | Chevrolet | Trailblazer EXT | Gear To Cooler | |
| 2004 | GMC | Envoy XL | Gear To Cooler | |
| 2004 | GMC | Envoy XUV | Gear To Cooler | |
| 2004 | Isuzu | Ascender | Gear To Cooler | |
| 2003 | Chevrolet | SSR | Gear To Cooler | |
| 2003 | Chevrolet | Trailblazer EXT | Gear To Cooler | |
| 2003 | GMC | Envoy XL | Gear To Cooler | |
| 2003 | Isuzu | Ascender | Gear To Cooler |
* 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.