Route high-pressure power steering fluid from the hydroboost unit to the steering gear with the Sunsong Power Steering Pressure Line Hose Assembly 3401742. It's a direct-fit replacement for the 1980 Chevrolet P10, 1980-1989 Chevrolet P20, 1980-1999 Chevrolet P30, 1980 GMC P1500, 1980-1989 GMC P2500, 1980-1994 and 1997-1999 GMC P3500, and 1980 and 1982-1989 GMC P4500 — see the Buyer's Guide tab for the full list. This is the HYDROBOOST-TO-GEAR line.
- Pre-assembled with brackets: ships ready to install for easier fitment and reduced labor versus lines sold as individual hoses.
- Precision engineered: built to exact fit and includes the additional components needed to restore the wearable parts to original condition.
- Rated for the job: a max working pressure of 1,500 psi, an 8,700 psi burst rating, and 1,600 lb tensile strength for durability and long life.
- Factory tested: every pressure hose is high-pressure quality-assurance tested before leaving the factory.
Signs this line may need replacing include power steering fluid leaks, damp or crusty residue along the hose, or a whining pump. If a failed pressure line is the cause, this assembly replaces it.
Interchange: 36-364320 · 979-2394
36364320 · 9792394 · 36432 · 91470 · 80146 · 364320 · 26032915 · 26046748 · 7833383 · 71792 · 24947 · 13401742
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 hydroboost unit to the steering gear on the listed applications. This is the hydroboost-to-gear line.
Does it come pre-assembled?
Yes. The Sunsong 3401742 is pre-assembled with brackets and includes the additional components needed to restore the wearable parts to original condition, for easier installation and reduced labor time.
What are the pressure ratings?
Sunsong lists a max working pressure of 1,500 psi, an 8,700 psi burst pressure rating, and 1,600 lb tensile strength. Every pressure hose is high-pressure tested before leaving the factory.
Which vehicles does the 3401742 fit?
It's a direct-fit replacement for various Chevrolet P10/P20/P30 and GMC P1500/P2500/P3500/P4500 models from 1980-1999. Check the Buyer's Guide tab to confirm your exact year and model.
How do I know if my pressure line needs replacing?
Watch for power steering fluid leaks, damp or crusty residue along the hose, or a whining pump. Diagnose the cause first; if the pressure line is at fault, this assembly replaces it.
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