Sunsong 3401489 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Hose for GM Applications

Sunsong 3401489 is a power steering pressure line hose assembly built for select 1994-1995 Chevrolet, Oldsmobile, and Pontiac vehicles. It is engineered to restore steering system pressure delivery with OE-style fitment and durable hose construction.

Compatible With 1994-1995 Chevrolet Lumina, 1995 Chevrolet Monte Carlo, 1994-1995 Oldsmobile Cutlass Supreme, and 1994-1995 Pontiac Grand Prix, including 1995 Cutlass Supreme w/o Variable Assist and 1995 Grand Prix w/o Electronic Variable Assist.

Key Features

• Part number 3401489 power steering pressure line hose assembly
• Max working pressure rated at 1,500 psi
• Burst pressure rating of 8,700 psi
• Tensile strength rated at 1,600 lb
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Precision-engineered fit with 16 mm male O-ring end and 18 mm male O-ring end
• 49.5 in. (1257 mm) hose length
• CSM hose material for steering fluid service

Detailed Description

This Sunsong pressure hose is built to replace a worn or leaking steering pressure line on GM passenger cars from the mid-1990s. The 3401489 hose assembly uses male O-ring fittings at both ends and is sized for direct replacement on the listed Chevrolet Lumina, Chevrolet Monte Carlo, Oldsmobile Cutlass Supreme, and Pontiac Grand Prix applications. It is a practical choice when the original hose has seepage, cracked tubing, or pressure loss in the steering circuit.

Construction details matter in power steering service, and this assembly uses steel tubing with zinc coating to help resist rust and corrosion from humidity, road salt, water, and grime. The hose is also pressure tested before it leaves the factory, supporting consistent operation after installation. This part cross-references Gates 366390 for the same application.

What It Helps Fix

• Power steering fluid leaks at the pressure line
• Steering assist loss caused by hose pressure failure
• Noise or whining related to low steering fluid level
• Visible corrosion or deterioration on the original pressure hose
• Fitment issues when replacing an aging OE-style hose on GM steering systems

Installation Notes and Tips

Verify the end fittings before installation: this hose uses a 16 mm male O-ring connection on one end and an 18 mm male O-ring connection on the other. Confirm vehicle configuration for 1995 Oldsmobile Cutlass Supreme w/o Variable Assist and 1995 Pontiac Grand Prix w/o Electronic Variable Assist before ordering. Inspect mating seals, routing points, and nearby components for wear so the replacement hose can seat correctly and maintain proper steering pressure.

Quality Assurance

Sunsong states that each hose is subjected to high-pressure testing before shipment. The pressure hose construction is specified to exceed original equipment performance standards, with published pressure and tensile ratings that support long-term service in demanding steering applications.