Sunsong 3402429 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Line for Explorer and Mountaineer

Sunsong 3402429 is a power steering pressure line hose assembly built for direct replacement on select Ford and Mercury SUVs. It is engineered for the 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer, with fitment matched to the original routing and connection points.

For buyers searching for a Ford Explorer power steering pressure hose or a Mercury Mountaineer pressure line hose assembly, this part number 3402429 is built to restore steering system pressure transfer with OE-style fitment.

Key Features

• Pressure hose assembly for power steering systems
• Max working pressure of 1,500 psi
• Burst pressure rating of 8,700 psi
• Tensile strength of 1,600 lb
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Precision-engineered to exact fit for the listed applications
• High-pressure tested before leaving the factory
• End fittings: 11 mm male captive O-ring and 16 mm swivel O-ring
• Hose material: CSM
• Length: 59.6 in. (1513 mm)

Detailed Description

Sunsong 3402429 is a power steering pressure line hose assembly designed for vehicles that need a direct-fit replacement pressure hose with the correct length, fitting style, and routing. The assembly uses high-grade steel tubing with a zinc coating to help resist rust and corrosion from humidity, road salt, water, and grime. Its pressure ratings and tensile strength support demanding steering system conditions, while the CSM hose material adds durability for long service life. This part cross-references Dayco 80650 for the same application.

Search terms such as 2006-2010 Ford Explorer power steering pressure line hose assembly, 2007-2010 Ford Explorer Sport Trac steering hose, and 2006-2010 Mercury Mountaineer pressure hose all point to this application. Part number 3402429 is also referenced in OE-style interchange listings for related steering repairs.

Common Problems This Part Can Address

• Power steering fluid leaks from a worn or damaged pressure hose
• Loss of steering assist caused by pressure line failure
• Cracked, corroded, or fatigued hose tubing
• Incorrect hose fitment after a previous repair
• Noise or steering performance issues related to pressure loss

Installation Notes and Tips

Verify end fitting sizes and hose routing before installation. This assembly uses an 11 mm male captive O-ring on one end and a 16 mm swivel O-ring on the other, so matching the original connection style is important for proper sealing. Inspect related steering components, clamps, and seals during service, and confirm the system is clean before refilling and bleeding the power steering system.

Compatible With 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer. For fitment-specific searches, use Sunsong 3402429 when sourcing a replacement pressure line hose assembly for these vehicles.

Quality Assurance

Each Sunsong pressure hose is high-pressure tested before it leaves the factory to help ensure proper operation and installation. The design is built to exceed original equipment performance standards for pressure, burst resistance, and tensile strength.