Sunsong 3401797 Power Steering Pressure Line Hose Assembly - Pump To Hydroboost

Power Steering Pressure Line for Hydroboost Applications

Sunsong 3401797 is a power steering pressure line hose assembly for select Chevrolet P30, Chevrolet P20, GMC P3500, and GMC P2500 applications with pump-to-hydroboost routing. It is built to meet demanding steering system pressure requirements and is engineered for direct replacement service on the listed vehicles.

Fits 1983-1995 Chevrolet P30, pump to hydroboost; fits 1983-1989 Chevrolet P20, pump to hydroboost; fits 1983-1995 GMC P3500, pump to hydroboost; and fits 1983-1989 GMC P2500, pump to hydroboost. Part number 3401797 is a direct-fit option for hydroboost-equipped trucks and vans that need the correct pressure line routing.

Key Features

• Pressure hose assembly for pump-to-hydroboost steering systems
• End 1 fitting: 16 mm male O-ring
• End 2 fitting: 18 mm male O-ring
• 48.1 in. overall length for the specified routing
• CSM hose material for pressure-line service
• Built to handle up to 1,500 psi working pressure
• High-pressure burst rating of 8,700 psi
• 1,600 lb tensile strength
• High-grade steel tubing with zinc electroplating for corrosion resistance

Detailed Description

Sunsong 3401797 is a replacement power steering pressure line hose assembly made for hydroboost-equipped Chevrolet and GMC applications. It uses male O-ring fittings at both ends and the specified 48.1-inch length to match the original routing between the pump and hydroboost unit. The hose assembly is engineered to restore proper steering pressure delivery in vehicles that rely on hydraulic assist.

This part cross-references Edelmann 71250 and Gates 34924 for the same application. The Sunsong 3401797 part number is also referenced in interchange listings for related aftermarket catalog numbers, making it easier to match the correct hose when servicing a Chevrolet P30, Chevrolet P20, GMC P3500, or GMC P2500.

What This Hose Helps Address

• Power steering fluid leaks at the pressure line
• Loss of steering assist from a damaged hose
• Corrosion-related hose deterioration in high-humidity or road-salt environments
• Incorrect hose routing or fitment on hydroboost systems
• Pressure-line failure caused by age, heat, or vibration

Installation Notes and Tips

Verify the end fitting sizes, hose length, and pump-to-hydroboost routing before installation. This assembly uses 16 mm and 18 mm male O-ring connections, so the mating components must match those specifications. Confirm the vehicle is equipped with hydroboost and review brake warning system notes for the exact application before ordering.

For best results, inspect related steering components, mounting points, and sealing surfaces during replacement. The hose is factory pressure tested before shipment to support trouble-free installation and operation.

Quality Assurance

Sunsong states that each hose is pressure tested before leaving the factory. The assembly is also built with corrosion-resistant zinc-plated steel tubing and pressure-rated materials to support long-term service in demanding steering applications.