Keep power steering fluid moving back where it belongs with the Sunsong power steering return line hose assembly, part number 3403702. It is a direct-fit replacement for the intermediate pipe section of the return line running from the steering gear on the 2004-2009 Mazda 3, the 2009 Mazda 3 Sport and the 2006-2010 Mazda 5.
Sunsong is a vertically integrated manufacturer that researches, develops and builds automotive fluid transfer hoses and lines. It designs its products around what installers need and aims to exceed industry quality standards.
The return line carries power steering fluid at low pressure from the steering gear back to the reservoir. Signs that this part may need replacing include:
If a leaking return line is the cause, this assembly replaces it. Refill and bleed the system as directed by the vehicle service information.
Fitment: 2004-2009 Mazda 3; 2009 Mazda 3 Sport; 2006-2010 Mazda 5. See the Buyer's Guide tab for engine-level fitment.
Interchange: 40837 · 81411 · 353056 · 13403702 · BPY132410 · 79016 · 5992
This part cross-references / interchanges with the following part numbers:
What does the Sunsong 3403702 return line hose assembly do?
It carries power steering fluid at low pressure from the steering gear back to the reservoir. It serves as the intermediate pipe section of the return line on the listed Mazda applications.
Which vehicles does the Sunsong 3403702 fit?
It is listed for the 2004-2009 Mazda 3, the 2009 Mazda 3 Sport and the 2006-2010 Mazda 5. See the Buyer's Guide tab for engine-level fitment.
What pressure is this return hose rated for?
Sunsong rates its return hoses for a maximum working pressure of 250 psi. They are suited to low-pressure, high-temperature operation.
What are signs a power steering return line may need replacing?
Common signs include fluid seeping from the line, a dropping fluid level, pump whine or heavier steering from low fluid, and a cracked or damaged hose. Confirm where the leak is coming from before replacing parts.
Is the hose tested before it ships?
Yes. Every Sunsong return hose goes through a high-pressure quality assurance test before it leaves the factory.
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.
