Sunsong 3402785 Power Steering Return Line Hose Assembly - Cooler To Reservoir

Power Steering Return Hose for Hummer H3

The Sunsong 3402785 power steering return line hose assembly is built for low-pressure, high-temperature return-side service and is engineered for a precise OE-style fit. It is a direct replacement for select 2006-2010 Hummer H3 and 2009-2010 Hummer H3T applications with cooler-to-reservoir routing.

Key Features

• Return line hose assembly for power steering systems
• Rated for a maximum working pressure of 250 psi
• CSM hose material for return-side fluid handling
• 35 in. overall length with 3/8 in. ID hose ends
• Precision-engineered fit for the specified Hummer H3 and H3T applications
• Built for cooler-to-reservoir routing on left-hand-drive vehicles with a finned cooler

Detailed Description

Sunsong 3402785 is a power steering return line hose assembly made for vehicles that need a direct replacement on the low-pressure side of the steering system. This hose is specified for 2006-2010 Hummer H3 and 2009-2010 Hummer H3T models in cooler-to-reservoir configurations, including left-hand-drive vehicles with a finned cooler. The 35-inch hose uses 3/8-inch ID hose fittings at both ends and CSM hose material to handle return-line fluid flow in elevated temperature conditions.

This part number, 3402785, is engineered to restore the original routing and fitment expected in the Hummer H3 and Hummer H3T steering system. This part cross-references Dorman - HELP 55107 and 92490 for the same application.

Common Problems This Part Can Help Address

• Power steering fluid seepage at the return hose
• Cracked or hardened hose material from heat exposure
• Incorrect routing on cooler-to-reservoir steering lines
• Loss of steering assist caused by return-side hose deterioration
• Noise or contamination concerns related to a worn steering return line

Installation Notes and Tips

Verify the vehicle is a 2006-2010 Hummer H3 or 2009-2010 Hummer H3T with cooler-to-reservoir routing before installation. Confirm left-hand-drive configuration and finned cooler application, and match the 3/8-inch hose ends and 35-inch length to the original line layout. Inspect adjacent steering components, clamps, and connection points for wear before completing the repair.

Quality Assurance

Sunsong manufactures this return hose assembly to exceed original equipment performance standards for return-side steering service. The hose is built for corrosion-resistant, high-temperature operation in demanding underhood and road conditions.