Sunsong 3404245 Power Steering Return Line Hose Assembly - Pipe To Pump or Pipe To Reservoir

Sunsong 3404245 Power Steering Return Hose

Sunsong 3404245 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 Mazda applications and uses corrosion-resistant steel tubing with a zinc coating for added protection against rust, road salt, water, humidity, and grime.

Key Features

• Fits 2006-2010 Mazda 5, pipe to pump
• Fits 2006-2009 Mazda 3, pipe to pump
• Fits 2004-2005 Mazda 3, pipe to reservoir
• Max working pressure rated at 250 psi for return-line use
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Precision-engineered hose assembly for exact fit
• CSM hose material for return-side steering fluid routing
• Part number 3404245 for direct catalog lookup

Detailed Description

This Sunsong power steering return line hose assembly is made to restore the return path between the steering system components on Mazda 3 and Mazda 5 models. The assembly is built to OE-style dimensions and includes the hose construction and protective features needed for a proper replacement on the specified pipe-to-pump and pipe-to-reservoir applications. Part number 3404245 is a direct-reference option for drivers servicing a leaking, cracked, or deteriorated return hose on these vehicles.

This part cross-references Monroe Shocks & Struts (e.g., BP4L32682B) for the same application.

Common Problems This Part Can Address

• Power steering fluid seepage from a worn return hose
• Cracking or hardening of the hose from heat and age
• Corrosion on exposed steel tubing
• Steering fluid loss caused by damaged hose connections
• Noisy or inconsistent steering operation related to low fluid level

Installation Notes and Tips

Verify the vehicle’s routing before installation, since this assembly is listed for both pipe-to-pump and pipe-to-reservoir positions depending on model year. Inspect adjacent fittings, clamps, and mounting points for wear before transferring the new hose into place. Confirm that the replacement follows the original routing to avoid contact with hot or moving components.

Quality Assurance

Sunsong states that this return hose assembly exceeds original equipment performance standards for return-line service and is built with corrosion-resistant materials to withstand harsh underbody conditions. The precision-fit design helps restore the original hose path on the listed Mazda applications.