Sunsong Power Steering Return Line Hose Assembly P/N:3403686
Keep power steering fluid flowing back where it belongs with the Sunsong power steering return line hose assembly, part number 3402402. Positioned from the cooler to the reservoir, it carries low-pressure returning fluid back to the reservoir. It is a direct-fit application for the 2003-2005 Ford Excursion and the 2003-2004 Ford F-250 Super Duty, F-350 Super Duty, F-450 Super Duty and F-550 Super Duty. See the Buyer's Guide tab for engine details.
Sunsong is a vertically integrated manufacturer that researches, develops and produces automotive fluid transfer hoses and lines. It designs its products around what installers need.
Signs this part may need replacing: fluid seeping or dripping along the return line, a wet or damaged hose, a reservoir that keeps running low, or power steering whine when the fluid level drops. Diagnose the source of any leak before replacing parts.
Interchange: 2647-498163
2647498163 · 37302 · 92227 · 3C3Z3A713BA · 3C3Z3A713BB · 4C3Z3A713AA · 365613 · 73447 · 20022 · 13402402
This part cross-references / interchanges with the following part numbers:
Where does part 3402402 install?
It is the return line that runs from the power steering cooler to the reservoir. It carries low-pressure fluid back to the reservoir on the listed Ford applications.
Which vehicles does this return line fit?
It fits the 2003-2005 Ford Excursion and the 2003-2004 Ford F-250, F-350, F-450 and F-550 Super Duty. See the Buyer's Guide tab for engine details.
What pressure is the return hose rated for?
Sunsong lists a maximum working pressure of 250 psi. The return hose is suited to low-pressure, high-temperature operation.
Is the hose tested before it ships?
Yes. Sunsong puts every return hose through a high-pressure quality assurance test before it leaves the factory.
What signs suggest the return line may need replacing?
Common signs include fluid leaking along the line, a wet or damaged hose, and a reservoir that keeps losing fluid. Confirm where the leak is coming from before replacing the line.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.