Sunsong 3402524 Power Steering Pressure Line Hose Assembly

BMW Power Steering Pressure Hose

The Sunsong 3402524 power steering pressure line hose assembly is built for BMW applications that need a direct-fit replacement for the high-pressure side of the steering system. It is engineered for 1992-2000 BMW 3 Series and Z3 models, including BMW M3, BMW 320i, BMW 325i, and BMW 325is coverage.

• Fits 1998-2000 BMW Z3, N/A
• Fits 1994-1999 BMW M3, N/A
• Fits 1993-1995 BMW 320i, N/A
• Fits 1992-1995 BMW 325i, N/A
• Fits 1992-1995 BMW 325is, N/A
• 14 mm banjo fittings at both ends for the specified BMW applications
• 35.8 in. (909 mm) hose length
• CSM hose material for pressure-line service
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Pressure-rated to 1,500 psi working pressure, 8,700 psi burst pressure, and 1,600 lb tensile strength

This Sunsong power steering pressure hose assembly is a direct replacement for the high-pressure steering line on select BMW models. The 3402524 is built to restore steering fluid transfer between the pump and steering gear while matching the original connection style with 14 mm banjo fittings on both ends. It is a practical choice for BMW Z3 and BMW M3 owners, as well as drivers of BMW 320i, 325i, and 325is models seeking a replacement pressure hose with OE-style fitment.

This part cross-references Dorman HELP 80373 and Gates 363220 for the same application.

Common Steering Issues It Can Address

• Visible fluid seepage or wetness along the pressure line
• Loss of steering assist caused by pressure-line leakage
• Cracked, hardened, or deteriorated hose material
• Corrosion on the steel tube section from road salt, moisture, or grime
• Noise or inconsistent steering feel related to a failing high-pressure hose

Installation Notes and Tips

Confirm the 14 mm banjo fitting size at both ends and verify the 35.8 in. hose length before installation. Inspect mating sealing surfaces, routing points, and nearby components for wear or contamination so the replacement line can be installed cleanly and routed correctly on the BMW steering system.

Quality Assurance

Each hose is pressure tested before it leaves the factory. Sunsong states that this pressure line is engineered to exceed original equipment performance standards, with corrosion-resistant steel tubing and exact-fit construction for dependable installation and operation.