Route high-pressure fluid from the pump to the steering gear with the Sunsong Power Steering Pressure Line Hose Assembly 3403708, a pump-to-gear pressure line that carries pressurized power steering fluid on its way to the steering gear. It's a direct-fit replacement for the 2001-2003 Mercedes-Benz ML320, 2003-2005 Mercedes-Benz ML350, 2002-2005 Mercedes-Benz ML500, and 2001-2003 Mercedes-Benz ML55 AMG — see the Buyer's Guide tab for engine-level details.
- Pre-assembled with brackets: the pressure and return hoses arrive assembled, which can reduce labor time compared to versions sold as individual hoses.
- Built beyond OE performance: the pressure hose is rated for a max working pressure of 1,500 psi, a burst pressure of 8,700 psi, and a tensile strength of 1,600 lb.
- Complete restoration: includes the additional components needed to restore the wearable parts to original condition.
- Factory-tested: every pressure hose is subjected to a high-pressure quality-assurance test before it leaves the factory.
If a leaking, cracked, or worn original pressure line is the cause of fluid loss or a whine from the steering system, this assembly replaces it.
Interchange: 2647-534080
2647534080 · 40404 · 80967 · 352575 · 13403708 · 1634604224 · 77265 · 5565 · PSH0229
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this power steering pressure line hose do?
It routes pressurized power steering fluid from the pump to the steering gear. This is the pump-to-gear pressure line for the listed applications.
Which vehicles does the Sunsong 3403708 fit?
It fits the 2001-2003 Mercedes-Benz ML320, 2003-2005 ML350, 2002-2005 ML500, and 2001-2003 ML55 AMG. Check the Buyer's Guide tab to confirm your vehicle.
Does it come with brackets?
Yes. The pressure and return hoses are pre-assembled with brackets, which can reduce installation labor compared to hoses sold individually.
What are the pressure ratings?
The pressure hose is rated for a max working pressure of 1,500 psi, a burst pressure of 8,700 psi, and a tensile strength of 1,600 lb.
How do I know if my pressure line needs replacing?
Signs may include fluid leaks, cracked or worn hose, or a whine from the steering system. Diagnose the cause first, since these symptoms can have other sources.
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