Sunsong 3401322 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Hose for Astro and Safari

Sunsong 3401322 is a power steering pressure line hose assembly built for 1987-1989 Chevrolet Astro and 1987-1989 GMC Safari applications. It is engineered to meet demanding pressure requirements while maintaining an exact-fit layout for service replacement.

• Max working pressure: 1,500 psi
• Burst pressure rating: 8,700 psi
• Tensile strength: 1,600 lb
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Male O-ring fittings: 16 mm end 1 and 18 mm end 2
• Hose length: 35.9 in. (911 mm)
• CSM hose material
• Precision-engineered replacement for OE-style routing and fit
• High-pressure tested before leaving the factory

Detailed Application Coverage

This power steering pressure hose assembly is built for direct replacement service on the Chevrolet Astro and GMC Safari. Sunsong 3401322 is designed around the original routing and connection points, helping restore proper hydraulic pressure transfer between the pump and steering gear on 1987-1989 Chevrolet Astro and 1987-1989 GMC Safari models.

This part cross-references Gates 358500 and AMS Automotive 4132 for the same application.

Common Steering System Issues

• Power steering fluid leaks at the pressure line
• Cracked, hardened, or swollen hose material
• Corrosion on steel tubing from road salt, moisture, or grime
• Loss of steering assist caused by pressure loss
• Noisy or inconsistent steering operation from a failing hose assembly

Installation Notes and Tips

Verify the 16 mm male O-ring and 18 mm male O-ring connections before installation. Confirm hose routing, clearance, and length against the original line on the vehicle. Inspect mating sealing surfaces, flush contaminated fluid if needed, and check for leaks after the system is filled and bled.

Quality Assurance

Each Sunsong pressure hose is high-pressure tested before it leaves the factory. The assembly is built to exceed original equipment performance standards for pressure capacity and durability, with corrosion-resistant steel tubing for long service life.