Sunsong 3401798 Power Steering Pressure Line Hose Assembly

Ford E-Series Power Steering Pressure Hose

The Sunsong 3401798 power steering pressure line hose assembly is built for direct replacement on select Ford E-150, E-250, and E-350 Econoline applications. It is engineered to match the original routing and connection style for a clean, serviceable repair on pressure-side steering systems.

Key Features

• Fits 1987-1991 Ford E-150 Econoline and E-150 Econoline Club Wagon
• Fits 1987-1991 Ford E-250 Econoline and select 1987 E-250 Econoline Club Wagon applications
• Fits 1987-1991 Ford E-350 Econoline and select 1987 E-350 Econoline Club Wagon applications
• Part number 3401798 for accurate catalog lookup and ordering
• 1/2 in. male inverted flare end and 16 mm male O-ring end
• 30.9 in. hose length for OE-style routing
• CSM hose material for pressure-line service
• PS switch port included in the hose design
• Cross-references Gates 358630 and Dayco 71420 for the same application

Detailed Description

Sunsong 3401798 is a power steering pressure hose assembly for Ford E-Series vans and club wagons from the late 1980s and early 1990s. This hose is built to meet demanding pressure-line requirements, with a maximum working pressure of 1,500 psi, burst pressure rated at 8,700 psi, and tensile strength of 1,600 lb. The steel tubing is zinc electroplated to improve resistance to corrosion from humidity, road salt, water, and grime. For buyers searching for a Ford E-150 Econoline power steering pressure hose, Ford E-250 Econoline pressure line hose, or Ford E-350 Econoline steering hose replacement, part number 3401798 provides the correct fitment details and connection style.

Common Repair Uses

• Leaking power steering pressure line
• Cracked or hardened hose material
• Steering fluid loss at the fitting ends
• Pressure-side steering noise caused by hose deterioration
• Corrosion at the steel tube section or connection points

Installation Notes and Tips

Verify the end fittings before installation: one end uses a 1/2 in. male inverted flare and the other uses a 16 mm male O-ring connection. Confirm the vehicle build date on 1987 E-250 and E-350 Club Wagon applications, since fitment notes include units built to 1/31. Check hose routing, switch-port location, and clearance around nearby components before tightening the connections. After installation, inspect for leaks and verify steering assist operation at idle and during turns.

Quality Assurance

Each Sunsong 3401798 hose is pressure tested before it leaves the factory to confirm proper operation. The assembly is precision engineered for exact fit and built to restore the wearable portions of the steering line to original condition on compatible Ford E-Series applications.