Restore firm, leak-free power-steering assist with the Sunsong Power Steering Pressure Line Hose Assembly 3401313, a direct-fit replacement configured for the HYDROBOOST-TO-GEAR position. It carries high-pressure fluid from the hydroboost unit to the steering gear on a broad range of 1980-1991 Chevrolet and GMC full-size trucks and SUVs — including the Chevrolet Blazer, C10, C20, K10, K20, R1500 Suburban and V3500, plus the GMC Jimmy, C1500, K2500 and R2500 Suburban. Fits 53 applications in all — see the Buyer's Guide tab for the complete year-make-model list.
- Pre-assembled with brackets: the pressure and return hoses ship assembled with brackets for easier installation and reduced labor versus hoses sold individually.
- Precision engineered: built to an exact fit and includes the additional components needed so wearable parts are returned 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-tested: every pressure hose passes a high-pressure quality-assurance test before leaving the factory.
Signs the original hose may need replacing include power-steering fluid leaks, a whine or groan from the system, or hardened, cracked hose.
Interchange: 36-357640 · 2647-273025 · 979-3060
36357640 · 2647273025 · 9793060 · 35764 · 71093 · 357640 · 26006307 · 26006309 · 7833371 · 7838942 · 71784 · 4112 · 13401313
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What is this part and where does it go?
It is a power steering pressure line hose assembly (MPN 3401313) for the HYDROBOOST-TO-GEAR position, routing high-pressure fluid from the hydroboost unit to the steering gear.
Which vehicles does it fit?
It fits 53 applications across 1980-1991 Chevrolet and GMC full-size trucks and SUVs, including the Blazer, C/K/R/V models, Suburban, and GMC Jimmy. See the Buyer's Guide tab for the full list.
Does it come pre-assembled?
Yes. The pressure and return hoses are pre-assembled with brackets, which makes installation easier and reduces labor time compared to hoses sold individually.
What are the pressure ratings?
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.
How do I know the hose needs replacing?
Common signs include power-steering fluid leaks, a whine or groan from the system, or a hardened or cracked hose. Diagnose the cause before replacing, as symptoms can have other sources.
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