Sunsong 3404857 Power Steering Return Line Hose Assembly - From Gear or Gear To Reservoir

Power Steering Return Hose Assembly

Sunsong 3404857 is a power steering return line hose assembly built for low-pressure, high-temperature return-side service. It is engineered for direct fitment on select Chevrolet, Saturn, and Pontiac applications, including Chevrolet Equinox, Chevrolet Captiva Sport, Saturn Vue, and Pontiac Torrent.

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

Key Features

• Part number 3404857
• Return line hose assembly for power steering systems
• Maximum working pressure: 250 psi
• Built for low-pressure, high-temperature return-side operation
• High-grade steel tubing with zinc electroplating for corrosion resistance
• CSM hose material for steering fluid service
• Precision-engineered fit for the listed vehicle applications
• Compatible with gear-to-reservoir and from-gear routing, depending on application

Application Details

This Sunsong power steering return line hose assembly 3404857 is used on 2008-2010 Chevrolet Captiva Sport, gear to reservoir; 2008-2010 Saturn Vue, gear to reservoir, includes cooler; 2008-2009 Chevrolet Equinox, gear to reservoir; and 2008-2009 Pontiac Torrent, from gear, power steering return line hose assembly with cooler. It cross-references Four Seasons 75147 for the same application.

What This Part Helps Address

• Power steering fluid seepage from a worn return hose
• Corrosion on steel steering line tubing
• Incorrect hose routing or fitment after replacement
• Fluid loss caused by cracked or aged hose material
• Steering system noise related to return-side hose deterioration

Installation Notes and Tips

Verify the vehicle’s steering line routing before installation, since this part is listed for both gear-to-reservoir and from-gear configurations. Match the end fittings carefully: end 1 is a 16 mm male fitting and end 2 is a 3/8 in bubble flare fitting. Confirm cooler-equipped and non-cooler applications against the vehicle’s original hose layout before replacing the line.

Quality Assurance

Sunsong manufactures this return hose assembly 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 harsh underbody conditions.