Sunsong 3402643 Power Steering Return Line Hose Assembly

Power Steering Return Hose for GM Trucks

The Sunsong 3402643 power steering return line hose assembly is built for low-pressure, high-temperature return-side service and direct replacement on select Chevrolet, GMC, and Isuzu applications. It is engineered for accurate fitment on vehicles such as the Chevrolet Colorado and GMC Canyon, with corrosion-resistant tubing and application-specific end connections.

Key Features

• Power steering return line hose assembly for return-side fluid routing
• Max working pressure of 250 psi for low-pressure hydraulic operation
• CSM hose material for heat and fluid resistance
• 46.9 in. overall length for application-specific routing
• 3/8 in. ID hose end and 3/8 in. male quick connect end
• Precision-engineered fit for select Chevrolet Colorado, GMC Canyon, and Isuzu models
• Cross-reference: Dorman - HELP 55241

Detailed Description

Sunsong 3402643 is a power steering return line hose assembly made for vehicles that require a direct-fit return hose with the correct length, end style, and routing. It uses high-grade steel tubing with zinc electroplating for added resistance to rust and corrosion from humidity, road salt, water, and grime. This part cross-references Dorman - HELP 55241 for the same application and is also associated with other OE-style replacement numbers in the market.

Compatible With 2006 Chevrolet Colorado, 2nd Design, w/ Z85, ZQ8 Suspension, From VIN # 68272519; 2006 GMC Canyon, 2nd Design, w/ Z85, ZQ8 Suspension, From VIN # 68272519; 2006 Isuzu i-280; 2007-2012 Chevrolet Colorado, w/ Z85, ZQ8 Suspension; 2007-2012 GMC Canyon, w/ Z85, ZQ8 Suspension; 2007-2008 Isuzu i-290, w/ Z85, ZQ8 Suspension; and 2007-2008 Isuzu i-370, w/ Z85, ZQ8 Suspension. The Sunsong 3402643 is a practical replacement when the original return hose has deteriorated, seeped, or lost proper routing integrity.

Common Uses

• Replacing a leaking or cracked power steering return hose
• Restoring proper fluid return flow in the steering system
• Addressing corrosion on original steel hose routing
• Correcting fitment issues caused by aged or damaged hose assemblies
• Repairing steering fluid seepage around hose ends or connections

Installation Notes and Tips

Verify the vehicle’s suspension package and model year before ordering, since fitment is specific to Z85 and ZQ8 suspension applications on many listings. Confirm the end styles match the vehicle: 3/8 in. ID hose on one end and 3/8 in. male quick connect on the other. Inspect surrounding brackets, grommets, heat shields, bushings, and sleeves during service and replace worn components as needed to restore original routing and protection.

Quality Assurance

This hose assembly is manufactured to exceed original equipment performance standards for return-side steering service. Sunsong uses corrosion-resistant steel tubing with zinc coating and application-specific engineering to support reliable fitment on select Chevrolet Colorado, GMC Canyon, and Isuzu i-290/i-370/i-280 models.