Sunsong 3402091 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Line for Cadillac

This Sunsong power steering pressure line hose assembly is built for direct replacement on select Cadillac Fleetwood and Cadillac DeVille applications. Part number 3402091 is engineered to meet demanding steering-system pressure requirements while supporting reliable fluid transfer and consistent steering response.

Key Features

• Pressure hose assembly for power steering systems
• Max working pressure: 1,500 psi
• Burst pressure rating: 8,700 psi
• Tensile strength: 1,600 lb
• 16 mm male O-ring end fitting on one side
• 18 mm male O-ring end fitting on the other side
• 38.9 in. (988 mm) overall length
• CSM hose material for durability
• High-grade steel tubing with zinc electroplating for corrosion resistance

Detailed Description

Sunsong 3402091 is a power steering pressure line hose assembly made for 1982-1985 Cadillac Fleetwood and 1982-1984 Cadillac DeVille. It is precision engineered to match the original routing and connection points for the listed vehicles, helping restore proper steering system function. The hose construction is designed to handle high pressure, resist corrosion from humidity, road salt, water, and grime, and support long service life in demanding driving conditions.

This part cross-references Gates 355810 and Karlyn 5168 for the same application.

What It Helps Address

• Power steering fluid leaks at the pressure line
• Loss of steering assist from a damaged hose
• Noise caused by restricted or failing steering fluid flow
• Corrosion-related hose deterioration
• Fitment issues from an incorrect replacement line

Installation Notes and Tips

Verify the 16 mm and 18 mm male O-ring connections before installation and confirm the hose length and routing match the original line. This assembly is intended for the listed Cadillac Fleetwood and Cadillac DeVille model years, so compare the existing hose path, bends, and connection style to the replacement part before service.

Quality Assurance

Each Sunsong pressure hose is high-pressure tested before it leaves the factory to help ensure proper operation after installation. The hose is built to exceed original equipment performance standards for pressure capacity and durability.