Restore firm, leak-free power steering with the Sunsong Power Steering Pressure Line Hose Assembly 3401898, the high-pressure line that carries hydraulic fluid from the power steering pump to the hydroboost unit. It's a direct-fit replacement for 1975-1979 Chevrolet C20, C30, K10, K20 and K5 Blazer models and the GMC Jimmy, plus many other Chevrolet and GMC C/K trucks and Suburbans — see the Buyer's Guide tab for the full year-by-year list.
- Pre-assembled with brackets: ships ready to bolt in, cutting labor time versus lines sold as individual hoses.
- Precision engineered to exact fit: includes the additional components needed to restore the wearable parts to original condition.
- Exceeds OE pressure standards: rated for a 1,500 psi max working pressure, an 8,700 psi burst pressure, and 1,600 lb tensile strength for durability and long life.
- Factory pressure-tested: every pressure hose passes a high-pressure quality assurance test before leaving the factory.
Signs this line may need replacing include power steering fluid leaks, whining from a low reservoir, or a swollen or cracked hose.
Interchange: 36-366780 · 979-4013
36366780 · 9794013 · 36678 · 91570 · 366780 · 7818560 · 71453 · 54997 · 13401898
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this hose assembly do?
It's the high-pressure line that carries power steering fluid from the pump to the hydroboost unit (pump-to-hydroboost position), delivering the hydraulic pressure that assists steering and braking.
Will it fit my truck?
It's a direct-fit replacement for many 1975-1979 Chevrolet and GMC C/K trucks, Suburbans, K5 Blazer and Jimmy. Check the Buyer's Guide tab to confirm your exact year, make and model.
How is it pressure rated?
The pressure hose is rated for a 1,500 psi max working pressure, an 8,700 psi burst pressure, and 1,600 lb tensile strength, exceeding original equipment performance standards.
Does it come ready to install?
Yes. It's pre-assembled with brackets and includes the additional components needed to restore the wearable parts to original condition, reducing labor versus individual hoses.
What are signs this line needs replacing?
Common signs include power steering fluid leaks at the hose or fittings, whining from a low reservoir, or a hose that is swollen, cracked or chafed. Diagnose the cause before replacing.
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