Sunsong 3402085 Power Steering Pressure Line Hose Assembly - Hydroboost To Gear

Power Steering Pressure Line Hose for Cadillac

Sunsong 3402085 is a power steering pressure line hose assembly built for select Cadillac applications, including 1978-1979 Cadillac Seville hydroboost to gear and 1971-1972 Cadillac DeVille, Fleetwood, and Commercial Chassis. It is engineered to meet demanding steering system pressure requirements while maintaining an exact-fit layout for service replacement.

Key Features

• Max working pressure: 1,500 psi
• Burst pressure rating: 8,700 psi
• Tensile strength: 1,600 lb
• High-grade steel tubing with zinc electroplating for corrosion resistance
• CSM hose material for steering system durability
• Precision-engineered fit for the listed Cadillac applications
• End fittings: 5/8 in male inverted flare and 11/16 in male inverted flare
• Length: 50 in (1270 mm)

Detailed Description

This Sunsong power steering pressure line hose assembly, part number 3402085, is built for direct replacement in steering systems that require a hydroboost-to-gear routing or the listed Cadillac chassis applications. The hose is manufactured to exceed original equipment performance standards, with pressure capacity and tensile strength specified for demanding hydraulic steering service. Its steel tubing is zinc plated to help resist rust and corrosion from humidity, road salt, water, and grime. This part cross-references Gates 366890 for the same application.

What It Helps Solve

• Pressure loss in the power steering circuit
• Fluid seepage or leakage from a worn pressure line
• Corrosion-related hose or tube deterioration
• Steering noise caused by restricted or damaged hydraulic flow
• Fitment issues from an incorrect hose routing or end configuration

Installation Notes and Tips

Verify the end fitting sizes and inverted flare connections before installation. Confirm the vehicle routing matches the listed hydroboost-to-gear or chassis application, and inspect adjacent steering components for wear before replacing the hose. The 50-inch length and exact-fit design help support proper routing on the specified Cadillac models.

Quality Assurance

Each Sunsong 3402085 hose is pressure tested before it leaves the factory to help ensure consistent operation and installation readiness. The construction uses corrosion-resistant tubing and durable hose materials to support long service life in power steering applications.