Keep power-assisted steering pressure flowing with the Sunsong Power Steering Pressure Line Hose Assembly 3401789. This assembly routes high-pressure fluid in the pump-to-hydroboost position, carrying pressurized fluid from the power steering pump to the hydroboost unit. It's a direct-fit replacement for a wide range of listed applications, including the 1963-1964 Cadillac DeVille, Series 62 and Series 75 Fleetwood, the 1965-1966 Ford Galaxie 500 and LTD, the 1964-1966 Pontiac Grand Prix, and the 1969-1970 International 1000D and 1200D — see the Buyer's Guide tab for the full list of covered years, makes and models.
- Pre-assembled with brackets: ships ready to install, reducing labor time versus versions sold as individual hoses.
- Built to exceed OE performance: pressure hose rated to a 1,500 psi max working pressure, an 8,700 psi burst pressure, and 1,600 lb tensile strength for durability.
- Precision engineered: includes the additional components needed to restore wearable parts to original condition.
- Factory-tested: every pressure hose passes a high-pressure quality-assurance test before it leaves the factory.
Sunsong is a vertically integrated manufacturer of automotive fluid transfer hoses and lines, trusted by OEMs for form, fit and function.
Interchange: 36-354730 · 979-2301
36354730 · 9792301 · 35473 · 71308 · 354730 · 5690579 · 5692602 · 5694588 · 7800108 · 7802529 · 7806068 · 7808532 · 7808534 · 7808535 · 7809277 · 7810144 · 7810145 · 7811803 · 71145 · 535 · 13401789
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this hose assembly do?
It carries high-pressure power steering fluid from the pump to the hydroboost unit (the pump-to-hydroboost position), delivering the pressure needed for power-assisted steering.
Does it come pre-assembled?
Yes. The pressure and return hoses are pre-assembled with brackets, so it installs ready to go and reduces labor time compared to hoses sold individually.
What are the pressure ratings?
The pressure hose is rated to a 1,500 psi max working pressure, an 8,700 psi burst pressure, and 1,600 lb tensile strength, exceeding original equipment performance standards.
Will this fit my vehicle?
It's a direct-fit replacement for many listed applications, from 1963-1964 Cadillacs to 1969-1973 Internationals. Check the Buyer's Guide tab to confirm your exact year, make and model.
Is each hose tested before shipping?
Yes. Every pressure hose is subjected to a high-pressure quality-assurance test before leaving the factory for trouble-free installation and operation.
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