Route high-pressure fluid from the power steering pump to the steering gear with the Sunsong Power Steering Pressure Line Hose Assembly, MPN 3402350. It installs as a direct-fit replacement for the 2004-2005 Lexus RX330 and 2004-2007 Toyota Highlander — see the Buyer's Guide tab for engine-level fitment. Sunsong is a vertically integrated maker of automotive fluid-transfer hoses and lines, developed to deliver exact form, fit, and function.
- Pre-assembled convenience: the hose is supplied with its brackets attached for easier installation and reduced labor time versus replacements sold as individual hoses.
- Precision engineered: built to an exact fit and includes the additional components needed so wearable parts are restored to original condition.
- High-pressure capability: exceeds original equipment performance standards with a max working pressure of 1,500 psi, a burst pressure rating of 8,700 psi, and a tensile strength of 1,600 lb. for exceptional durability and long life.
- Factory tested: every pressure hose is subjected to a high-pressure quality assurance test before leaving the factory.
Signs this hose may need replacing include fluid leaks or seepage at the fittings, low fluid, whining, or hard steering. If a failed pressure line is the cause, this assembly replaces it.
Interchange: 979-5137
9795137 · 37473 · 92398 · 92398E · 365803 · 13402350 · 76801 · 55223 · 4441048141
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this power steering pressure line hose assembly do?
It carries high-pressure power steering fluid from the pump to the steering gear. Replacing a leaking or failed pressure line restores that connection if the line is the cause.
Which vehicles does MPN 3402350 fit?
It is a direct-fit replacement for the 2004-2005 Lexus RX330 and 2004-2007 Toyota Highlander. See the Buyer's Guide tab for engine-level fitment.
Does it come with brackets attached?
Yes. The hose is pre-assembled with its brackets, which provides easier installation and reduced labor time compared to replacements sold as individual hoses.
What are the pressure ratings?
Sunsong states a max working pressure of 1,500 psi, a burst pressure rating of 8,700 psi, and a tensile strength of 1,600 lb., exceeding original equipment performance standards.
What are signs this pressure line needs replacing?
Fluid leaks or seepage at the fittings, low fluid level, a whining pump, or hard steering. Diagnose the cause first, since these symptoms can have other sources.
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