Sunsong 3401447 Power Steering Return Line Hose Assembly - From Gear

Power Steering Return Hose for GM Applications

The Sunsong 3401447 power steering return line hose assembly is built for low-pressure, high-temperature return-side service and is engineered to match original equipment fitment requirements. It is a direct replacement for select Chevrolet Lumina, Chevrolet Monte Carlo, Oldsmobile Cutlass Supreme, Pontiac Grand Prix, Buick Regal, Oldsmobile Cutlass, and Oldsmobile Cutlass Cruiser applications with a power steering cooler.

Key Features

• Return line hose assembly for the power steering system
• Max working pressure rated at 250 psi
• CSM hose material for return-side fluid handling
• Precision-engineered to exact fit for the listed vehicles
• End fittings: 3/8 in beaded tube and 16 mm male O-ring
• Length: 122.5 in (3111 mm)
• Built with high-grade steel tubing and zinc electroplating for corrosion resistance
• Designed for vehicles equipped with a power steering cooler

Detailed Description

Sunsong 3401447 is a power steering return line hose assembly made for the return side of the steering system, where fluid moves under low pressure but can see elevated temperatures. The hose is precision engineered for direct replacement on 1991-1997 Chevrolet Lumina, 1995-1997 Chevrolet Monte Carlo, 1991-1996 Oldsmobile Cutlass Supreme, 1991-1996 Pontiac Grand Prix, 1991-1993 Buick Regal, 1991-1993 Oldsmobile Cutlass, and 1993 Oldsmobile Cutlass Cruiser models with a cooler. This part number, 3401447, is built to restore the original routing and connection style for the listed GM platforms.

This part cross-references Gates 370410 and Dayco 70010 for the same application.

Common Problems This Part Can Address

• Leaking return hose connections at the steering gear or cooler
• Cracked or hardened hose material from age and heat exposure
• Corrosion on steel tubing sections exposed to road salt and moisture
• Fluid seepage caused by worn fittings or deteriorated hose routing
• Loss of steering assist from a damaged return line assembly

Installation Notes and Tips

Verify the vehicle uses the from-gear return line configuration with a power steering cooler before ordering. Match the end fittings, hose length, and routing points to the original assembly, and inspect nearby brackets, grommets, heat shields, bushings, and protective sleeves during replacement if the vehicle uses them. Proper routing helps prevent contact with hot or moving components and supports long-term hose life.

Quality Assurance

Sunsong states that this return hose assembly is manufactured to exceed original equipment performance standards for return-side steering service. The steel tubing is zinc electroplated to improve resistance to rust and corrosion in humid, wet, and salt-exposed environments.