Sunsong 3401963 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Line Hose for Cadillac

Sunsong 3401963 is a power steering pressure line hose assembly built for direct replacement on select Cadillac applications. It is engineered for the 1991-1992 Cadillac Allante, 1991 Cadillac Eldorado, and 1991 Cadillac Seville, with OE-style male O-ring fittings for a precise connection.

Key Features

• Pressure hose assembly for power steering systems
• End 1 fitting: 16 mm male O-ring
• End 2 fitting: 18 mm male O-ring
• 59.3 in. (1506 mm) overall length
• CSM hose material with steel tubing
• High-grade steel tubing with zinc electroplating for corrosion resistance
• High-pressure tested before shipment

Detailed Description

This Sunsong power steering pressure line hose assembly, part number 3401963, is built to restore steering fluid transfer between the pump and steering gear on compatible Cadillac models. The hose is manufactured to exceed original equipment performance standards, with a 1,500 psi maximum working pressure, 8,700 psi burst pressure rating, and 1,600 lb tensile strength. That construction supports long service life in demanding underhood and road conditions. The steel tubing is zinc coated to resist rust and corrosion from humidity, road salt, water, and grime. For shoppers searching for a 1991 Cadillac Eldorado power steering pressure hose or a 1991-1992 Cadillac Allante pressure line hose, this part number 3401963 provides a direct-fit replacement solution.

This part cross-references Dorman - HELP 55143 and Gates 366280 for the same application.

What It Helps Resolve

• Power steering fluid leaks at the pressure line
• Hard or inconsistent steering assist
• Cracked, corroded, or worn hose tubing
• Failed O-ring sealing at the hose ends
• Noise or pressure loss in the steering hydraulic circuit

Installation Notes and Tips

Verify end sizes and routing before installation: 16 mm male O-ring on one end, 18 mm male O-ring on the other, with a 59.3 in. overall length. Inspect mating surfaces, replace damaged seals as needed, and confirm the line follows the original routing to avoid contact with heat sources or moving components. This hose does not include a bracket.

Quality Assurance

Each Sunsong 3401963 hose is pressure tested at the factory before it leaves production. The steel tubing uses zinc electroplating to improve resistance to corrosion and rust, supporting dependable operation on Cadillac Allante, Cadillac Eldorado, and Cadillac Seville applications.