Sunsong 3402857 Power Steering Pressure Line Hose Assembly - Hydroboost To Gear

Power Steering Pressure Line Hose for Ram and Dodge

Sunsong 3402857 is a power steering pressure line hose assembly for hydroboost-to-gear applications on select Ram and Dodge trucks. It is built to meet demanding steering-system pressure requirements while maintaining an exact-fit layout for service replacement.

• Fits 2008 Dodge Ram 1500, Hydroboost To Gear
• Fits 2008-2010 Dodge Ram 2500, Hydroboost To Gear
• Fits 2008-2010 Dodge Ram 3500, Hydroboost To Gear
• Fits 2011 Ram 1500, Hydroboost To Gear
• Fits 2011-2012 Ram 3500, Hydroboost To Gear
• Fits 2012 Ram 4000, Hydroboost To Gear
• Male O-ring to female O-ring connection sizes: 18 mm and 16 mm
• 40.9 in. (1038 mm) hose length
• CSM hose material for pressure-line service
• High-grade steel tubing with zinc electroplating for corrosion resistance
• High-pressure tested before leaving the factory

Built for Steering System Pressure

This pressure hose assembly is engineered for steering circuits that require reliable fluid transfer between the hydroboost unit and the steering gear. Sunsong 3402857 is rated for a maximum working pressure of 1,500 psi, a burst pressure of 8,700 psi, and a tensile strength of 1,600 lb, giving it the durability expected in demanding truck applications. The Sunsong 3402857 replacement hose is a direct service part for Ram and Dodge models listed above, including Ram 3500 and Dodge Ram 2500 applications.

This part cross-references Dorman - HELP 80688 for the same application.

Common Problems This Hose Can Address

• Fluid leaks at the pressure line
• Cracked or deteriorated hose material
• Corrosion on steel tubing sections
• Steering assist loss caused by pressure-line failure
• Noise or erratic steering operation from a compromised hose

Installation Notes and Tips

Verify the end fittings before installation: this assembly uses an 18 mm male O-ring end and a 16 mm female O-ring end. Confirm the hydroboost-to-gear routing and hose length on the vehicle before removal, and inspect nearby brackets, grommets, heat shields, bushings, and sleeves for wear so the steering system is restored to proper condition where applicable.

Quality Assurance

Each Sunsong pressure hose is high-pressure tested before shipment to help ensure proper sealing and dependable operation after installation. The hose and tubing construction are specified for corrosion resistance and long service life in road-salt, moisture, and grime exposure.