Sunsong 3401811 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Hose for Lincoln Mark VII

Sunsong 3401811 is a power steering pressure line hose assembly built for 1990-1992 Lincoln Mark VII applications. It is engineered to meet demanding pressure requirements while restoring proper steering fluid transfer in the power steering system.

Key Features

• Fits 1990-1992 Lincoln Mark VII, N/A
• Pressure hose assembly with 42.5 in. overall length
• Swivel O-ring fittings: 9/16 in. end 1 and 16 mm end 2
• CSM hose material for fluid handling durability
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Max working pressure of 1,500 psi, burst pressure rating of 8,700 psi, and tensile strength of 1,600 lb.
• Precision-engineered to exact fit for the listed application

Detailed Description

This Sunsong power steering pressure line hose assembly is built for Lincoln Mark VII steering service where a direct-fit replacement is needed. Part number 3401811 is manufactured to restore the pressure side of the hydraulic steering circuit with the correct hose length, fitting style, and routing characteristics for the listed vehicle fitment. This part cross-references Dayco 71666 for the same application.

The hose uses CSM material and steel tubing with zinc coating to help resist rust and corrosion from humidity, road salt, water, and grime. Sunsong also pressure-tests each hose before it leaves the factory, supporting consistent installation and operation. For shoppers searching for a power steering pressure hose for 1990-1992 Lincoln Mark VII or a replacement steering pressure line hose assembly, 3401811 is the cataloged option.

What It Helps Resolve

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

Installation Notes and Tips

Verify the end fittings before installation: 9/16 in. swivel O-ring on one end and 16 mm swivel O-ring on the other. Confirm hose routing, bracket locations, and clearance around heat sources against the original part before tightening connections. After installation, inspect the system for leaks and check steering operation with the engine running.

Quality Assurance

Sunsong pressure hoses are built to exceed original equipment performance standards and are factory pressure-tested before shipment. The hose assembly is engineered for exact fit and long service life in the 1990-1992 Lincoln Mark VII steering system.