Sunsong 3401918 Power Steering Pressure Line Hose Assembly

OE-Style Power Steering Pressure Hose

The Sunsong 3401918 power steering pressure line hose assembly is built for direct replacement on select Buick and Oldsmobile applications. It is engineered for the 1986-1990 Buick Riviera, 1988-1990 Buick Reatta, and 1986-1990 Oldsmobile Toronado, with fitment matched to the original routing and connection points.

For buyers searching for a Buick Riviera power steering pressure hose, Buick Reatta steering hose, or Oldsmobile Toronado pressure line replacement, this assembly is built to restore proper hydraulic flow and steering response. The Sunsong 3401918 is also a direct-reference option for related aftermarket part numbers used in the same application.

Key Features

• Direct-fit power steering pressure line hose assembly for confirmed vehicle applications
• 16 mm male O-ring end fitting on one side and 18 mm male O-ring end fitting on the other
• 46.3 in. overall length for application-specific routing
• CSM hose construction with steel tubing for durability
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Rated for 1,500 psi maximum working pressure, 8,700 psi burst pressure, and 1,600 lb tensile strength
• High-pressure tested before shipment for quality verification

Detailed Description

Sunsong 3401918 is a power steering pressure line hose assembly engineered to meet the demands of hydraulic steering systems in the Buick Riviera, Buick Reatta, and Oldsmobile Toronado. The hose uses male O-ring fittings in 16 mm and 18 mm sizes and a 46.3-inch length to match the original application layout. This makes it a practical replacement for worn, leaking, or corroded pressure lines on these vehicles.

The hose combines CSM and steel materials for strength and fluid resistance, while the steel tubing receives zinc plating to help resist rust and corrosion from humidity, road salt, water, and grime. This part cross-references Gates 365900 and Four Seasons 20238 for the same application. The Sunsong 3401918 is a focused replacement choice for drivers servicing a Buick Riviera power steering pressure hose, Buick Reatta pressure line, or Oldsmobile Toronado steering hose.

What It Helps Fix

• Power steering fluid leaks from a damaged or corroded pressure line
• Hard steering caused by pressure loss in the hydraulic system
• Noise or vibration related to restricted steering fluid flow
• Rust-related hose deterioration on older steering systems
• Improper hose fitment from a worn or incorrect replacement line

Installation Notes and Tips

Verify end fitting sizes, hose length, and routing before installation. Confirm the vehicle application against the listed fitment for 1986-1990 Buick Riviera, 1988-1990 Buick Reatta, and 1986-1990 Oldsmobile Toronado. Inspect mating components, seals, and mounting points for wear or corrosion before connecting the new hose. Properly bleed the power steering system after installation to remove trapped air and restore normal steering operation.

Quality Assurance

Each Sunsong 3401918 hose is pressure tested at the factory before it leaves production. The assembly is built to exceed original equipment performance standards with a 1,500 psi working pressure rating, 8,700 psi burst pressure rating, and 1,600 lb tensile strength for dependable service in the specified Buick and Oldsmobile applications.