Sunsong 3405018 Power Steering Return Line Hose Assembly - Pipe To Cooler

Power Steering Return Hose for MDX and Pilot

Sunsong 3405018 is a power steering return line hose assembly built for low-pressure, high-temperature return flow. It is engineered for direct replacement on select Acura MDX and Honda Pilot applications, with fitment for the pipe-to-cooler position.

For drivers searching for a 2001-2006 Acura MDX power steering return hose or a 2003-2004 Honda Pilot pipe to cooler hose, this assembly provides the correct routing and connection style for the listed vehicles. The Sunsong 3405018 part number is also a useful reference when matching the replacement hose to the original application.

Key Features

• Power steering return line hose assembly for low-pressure return circuits
• Rated for a maximum working pressure of 250 psi
• Built with CSM hose material for high-temperature service
• End 1 and End 2 use 9.6 mm ID hose fittings
• Direct-fit replacement for pipe-to-cooler routing
• Cross-reference part numbers include Gates 352727 and DENSO Auto Parts 5702

Detailed Description

This Sunsong power steering return hose assembly is made to restore the return side of the steering system on 2001-2006 Acura MDX and 2003-2004 Honda Pilot models. The hose is precision engineered for exact fitment and is intended for the pipe-to-cooler position, helping maintain proper fluid return between steering components. Sunsong 3405018 is built to meet original equipment performance expectations while using materials suited for heat and fluid exposure.

The hose construction uses CSM material and is designed for low-pressure, high-temperature operation. Sunsong also notes corrosion-resistant tubing construction with zinc electroplating on applicable metal components, helping resist rust from humidity, road salt, water, and grime. For shoppers comparing Acura MDX power steering return line hose assembly options or Honda Pilot steering return hose replacements, this part number provides a direct application match.

What This Hose Helps Address

• Power steering fluid seepage at the return line
• Cracked or hardened hose material from heat and age
• Restricted return flow in the steering circuit
• Noise or poor steering feel caused by a deteriorated return hose
• Leak points at the pipe-to-cooler connection

Installation Notes and Tips

Verify the vehicle year, make, model, and pipe-to-cooler routing before installation. Compare the original hose length, end style, and connection size to Sunsong 3405018 to confirm the match. Clean the surrounding area before removal so debris does not enter the steering system, and inspect adjacent lines and cooler connections for wear while the hose is off the vehicle.

Because this is a return line hose assembly, it is used on the low-pressure side of the power steering system. Confirm that the replacement follows the original routing on the Acura MDX or Honda Pilot to avoid kinks, rubbing, or heat exposure.

Quality Assurance

Sunsong manufactures this return hose assembly to exceed original equipment performance standards for the listed applications. The design focuses on correct fit, pressure capability, and resistance to corrosion-related wear in demanding underhood and road conditions.