Sunsong 3402479 Power Steering Return Line Hose Assembly - Gear To Reservoir

Sunsong 3402479 Power Steering Return Hose

Sunsong 3402479 is a power steering return line hose assembly built for low-pressure, high-temperature return flow. It is engineered for direct replacement on select Hummer H3 and Hummer H3T applications, with tubing made from high-grade steel and zinc electroplating for added resistance to corrosion, rust, road salt, water, humidity, and grime.

For buyers searching for a 2006-2010 Hummer H3 power steering return hose or a 2009-2010 Hummer H3T gear-to-reservoir hose, this assembly is built to restore the original routing and connection style. Part number 3402479 is also cross-referenced to Gates 365835 for the same application.

Key Features

• Power steering return line hose assembly for gear-to-reservoir routing
• Max working pressure of 250 psi
• Built for low-pressure, high-temperature return line service
• High-grade steel tubing with zinc coating for corrosion resistance
• Precision-engineered fit for select Hummer H3 and Hummer H3T models
• End connections include 3/8 in ID hose and 11 mm male captive O-ring
• 73.3 in. overall length for the specified application
• CSM hose material for return line use

Product Details

This Sunsong power steering return hose assembly is made to match the original routing and connection points used on compatible Hummer steering systems. The 3402479 assembly is specified for 2006-2010 Hummer H3 models with tubed cooler and left-hand drive, and 2009-2010 Hummer H3T models with tubed cooler and left-hand drive. It is a direct-fit replacement for the return side of the power steering system, where fluid is carried back from the steering gear to the reservoir.

Part number 3402479 is built with the dimensions and fittings needed for the listed applications, helping maintain proper hose routing and secure sealing at the connection points. This makes it a practical choice for Hummer H3 and Hummer H3T owners replacing a worn, leaking, or corroded return hose.

Common Problems This Part Can Address

• Power steering fluid leaks at the return line
• Corrosion or rust on the original hose assembly
• Cracked, hardened, or deteriorated hose material
• Improper hose routing on a worn replacement line
• Steering system noise or fluid loss caused by a failing return hose

Installation Notes and Tips

Verify the vehicle uses tubed cooler routing and left-hand drive before ordering. Confirm the end fittings, overall length, and gear-to-reservoir layout against the original hose on the vehicle. Clean the connection points before installation and inspect nearby clamps, seals, and steering components for wear that could affect the repair.

Compatible With: 2006-2010 Hummer H3, gear to reservoir; 2009-2010 Hummer H3T, gear to reservoir. Search terms such as 2006 Hummer H3 power steering return line hose assembly and 2009 Hummer H3T steering return hose apply to this part number 3402479.

Quality Assurance

Sunsong manufactures this return hose assembly to exceed original equipment performance standards for the specified low-pressure steering return application. The steel tubing is zinc plated for improved resistance to environmental exposure, and the assembly is engineered to restore the original wearable components and routing required by the application.