Help keep steering assist smooth and steady with the Sunsong Power Steering Pressure Line Hose Assembly, part number 3405345. It is a direct-fit replacement for the 2007-2009 Audi Q7. It carries pressurized power steering fluid from the pump to the steering gear. See the Buyer's Guide tab for engine-specific fitment details.
This line carries high-pressure fluid, so a leak here can let the system run low. Signs this hose may need replacing include:
These symptoms can have other causes, so diagnose the source of a leak or steering complaint before replacing parts.
Interchange: 2647-531717
2647531717 · 7L8422893AG · 80999 · 352611 · 13405345 · 5597
This part cross-references / interchanges with the following part numbers:
What vehicle does the Sunsong 3405345 fit?
It is cataloged for the 2007-2009 Audi Q7. See the Buyer's Guide tab for engine-specific fitment details.
What does a power steering pressure hose do?
It carries pressurized power steering fluid from the pump to the steering gear, where that pressure provides steering assist.
What are the pressure ratings of this hose?
Sunsong rates it at a 1,500 psi max working pressure and an 8,700 psi burst pressure, with 1,600 lb. tensile strength.
Why are Sunsong hoses pre-assembled with brackets?
Sunsong pre-assembles its pressure and return hoses with brackets to ease installation and reduce labor time compared with hoses sold individually.
What are signs the pressure hose may need replacing?
Signs include fluid leaking at the hose or fittings, a dropping fluid level, pump whine, or heavier steering. These can have other causes, so diagnose the problem before replacing parts.
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.
