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Sunsong 3402665 Power Steering Pressure Line Hose Assembly - Pump To Hydroboost
Overview of Sunsong Power Steering Pressure Line Hose Assembly
The Sunsong 3402665 power steering pressure line hose assembly is designed for reliable hydraulic fluid transfer in Chevrolet and GMC P30 and P3500 vehicles. Engineered with durable CSM hose material and precise fittings, this hose assembly supports efficient power steering system performance.
- Compatible with Chevrolet P30 and GMC P3500 models
- Length: 46.5 inches (1181 mm) for optimal fitment
- End 1 fitting: 16 mm male o-ring
- End 2 fitting: 18 mm male o-ring
- Constructed with CSM hose material for durability and flexibility
- No bracket included
- Part number: 3402665
Detailed Product Description
The Sunsong 3402665 power steering pressure line hose assembly is built to meet the specifications required by Chevrolet and GMC heavy-duty vehicles, specifically the P30 and P3500 models. The hose features a 46.5-inch length, providing the necessary reach for proper routing within the power steering system. Both ends of the hose are equipped with male o-ring fittings—16 mm on one end and 18 mm on the other—ensuring a secure, leak-resistant connection to the power steering pump and steering gear. The hose material is CSM (chlorosulfonated polyethylene), known for its resistance to heat, oil, and abrasion, which contributes to the longevity and reliability of the assembly under demanding operating conditions.
Common Applications and Issues Addressed
- Replacement of worn or leaking power steering pressure hoses in Chevrolet P30 and GMC P3500
- Resolving power steering fluid leaks that cause steering difficulty or noise
- Addressing hose damage from heat exposure or abrasion
- Restoring proper hydraulic pressure for smooth steering response
- Preventing contamination and maintaining system integrity
Installation Notes and Tips
When installing the Sunsong 3402665 power steering pressure line hose assembly, ensure the vehicle is safely supported and the power steering system is depressurized. Verify the correct orientation of the 16 mm and 18 mm male o-ring fittings to match the pump and steering gear connections. Avoid twisting or kinking the hose during installation to maintain fluid flow and prevent premature wear. The hose does not include a bracket, so use existing mounting points for secure routing. Follow manufacturer torque specifications for fittings to prevent leaks.
Quality Assurance and Warranty
Sunsong power steering hoses are manufactured to meet or exceed OEM standards for durability and performance. The 3402665 hose assembly undergoes rigorous testing to ensure resistance to heat, pressure, and fluid compatibility. While specific warranty details are not provided, Sunsong products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or supplier for exact warranty terms.
| Brand | Sunsong |
| Part Number | 3402665 |
| Bracket (Y/N) | N |
| End 1 Fitting Size (mm) | 16 |
| End 1 Fitting Type | Male o-ring |
| End 2 Fitting Size (mm) | 18 |
| End 2 Fitting Type | Male o-ring |
| Hose Material 1 | Csm |
| Length (in) | 46.5 |
| Length (mm) | 1181 |
| PS Switch Port (Y/N) | N |
| Tech Tip | Tt1000 |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1999 | Chevrolet | P30 | Pump To Hydroboost | w/ Hydroboost, w/o Brake Warning System |
| 1999 | GMC | P3500 | Pump To Hydroboost | w/o Brake Warning System |
| 1998 | Chevrolet | P30 | Pump To Hydroboost | w/ Hydroboost, w/o Brake Warning System |
| 1998 | GMC | P3500 | Pump To Hydroboost | w/o Brake Warning System |
| 1997 | Chevrolet | P30 | Pump To Hydroboost | w/ Hydroboost, w/o Brake Warning System |
| 1997 | GMC | P3500 | Pump To Hydroboost | w/o Brake Warning System |
* 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.