Sunsong 3404962 Power Steering Return Line Hose Assembly - From Gear

Power Steering Return Hose for GM Trucks

Sunsong 3404962 is a power steering return line hose assembly built for low-pressure, high-temperature return-side service. It is engineered for direct fit on select 2006-2007 Chevrolet Silverado and GMC Sierra heavy-duty trucks, including Silverado 2500 HD Classic and Sierra 3500 Classic applications.

With steel tubing, a zinc-plated finish, and a CSM hose section, this return hose assembly is made to resist corrosion from humidity, road salt, water, and grime while maintaining the correct routing and fit for the steering system.

Key Features

• Fits 2006 Chevrolet Silverado 2500 HD, from gear
• Fits 2006 Chevrolet Silverado 3500, from gear
• Fits 2006 GMC Sierra 2500 HD, from gear
• Fits 2006 GMC Sierra 3500, from gear
• Fits 2007 Chevrolet Silverado 2500 HD Classic, from gear
• Fits 2007 Chevrolet Silverado 3500 Classic, from gear
• Fits 2007 GMC Sierra 2500 HD Classic, from gear
• Fits 2007 GMC Sierra 3500 Classic, from gear
• Maximum working pressure: 250 psi
• 16 mm male end 1 fitting
• 34.4 in. overall length
• Steel tubing with zinc electroplated corrosion resistance
• Hose material: CSM
• No bracket and no PS switch port

Detailed Description

This Sunsong power steering return line hose assembly, part number 3404962, is a direct-fit replacement for the return side of the steering system on select Chevrolet Silverado and GMC Sierra HD trucks. It is built for the lower-pressure return circuit and is rated for up to 250 psi, making it suitable for the heat and fluid exposure common in steering return applications. The 34.4-inch hose length and 16 mm male fitting support accurate routing from the gear on the listed 2006-2007 Silverado and Sierra models.

Construction details matter in steering repairs, and this assembly uses high-grade steel tubing with a zinc coating for added resistance to rust and corrosion. The CSM hose material helps the assembly stand up to demanding underhood conditions while maintaining the intended fit and function. This part cross-references Dayco 81281 and Gates 352923 for the same application. Part number 3404962 is a practical choice when replacing a worn or leaking return hose on Silverado 2500 HD, Silverado 3500, Sierra 2500 HD, or Sierra 3500 trucks.

Common Problems This Part Can Address

• Power steering fluid seepage from a deteriorated return hose
• Corrosion on the original steel line or fittings
• Incorrect hose routing after prior repair work
• Soft, cracked, or heat-aged hose material
• Steering fluid loss that can lead to noisy or inconsistent steering assist

Installation Notes and Tips

Verify the vehicle year, model, and steering return-line routing before installation. This assembly is listed as a from-gear application and does not use a bracket or PS switch port. Inspect adjacent seals, clamps, and connection points for wear so the new hose can seal properly and maintain correct system operation.

Quality Assurance

Sunsong states that this return hose assembly is engineered to exceed original equipment performance standards for return-side steering service. The steel tubing, zinc electroplating, and precision fit are intended to restore the original hose path and wear points on the listed GM heavy-duty trucks.