Sunsong 3404870 Power Steering Pressure Line Hose Assembly

Sunsong 3404870 Power Steering Pressure Hose

The Sunsong 3404870 power steering pressure line hose assembly is built for direct replacement on select Buick and Saab applications. It is engineered to meet demanding pressure requirements while restoring steering system flow and response on vehicles such as the 2010 Buick LaCrosse, 2011-2013 Buick Regal, and 2011 Saab 9-5.

Key Features

• Pressure hose assembly for the power steering system
• 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 and rust resistance
• Precision-engineered fit with bracket included
• End 1: 16 mm banjo fitting
• End 2: 3/8 in bubble flare fitting
• 88.2 in (2240 mm) overall length
• CSM hose material

Detailed Description

This Sunsong power steering pressure line hose assembly, part number 3404870, is made to restore proper hydraulic pressure delivery in the steering system. It is built with high-grade steel tubing protected by zinc plating to resist corrosion from humidity, road salt, water, and grime, making it a practical replacement for daily-driven Buick and Saab vehicles. The hose is precision engineered for exact fitment and includes the bracket required for the application, helping return the steering system to original operating condition.

Compatible With 2010 Buick LaCrosse, 2011-2013 Buick Regal, and 2011 Saab 9-5. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. Part number 3404870 is also referenced in interchange listings for related applications.

What This Hose Helps Address

• Power steering fluid leaks from a worn or damaged pressure line
• Loss of steering assist caused by pressure loss in the hydraulic circuit
• Noisy steering operation related to hose deterioration
• Corrosion-related hose failure from road salt and moisture exposure
• Poor fitment or routing issues from an incorrect replacement hose

Installation Notes and Tips

Verify the banjo and bubble flare end fittings, hose length, and bracket configuration before installation. Inspect mating surfaces, seals, and surrounding steering components for wear or contamination before connecting the new hose. After installation, fill and bleed the power steering system according to the vehicle service procedure to remove trapped air and confirm proper steering response.

Quality Assurance

Each Sunsong 3404870 hose is pressure tested before it leaves the factory to help ensure consistent performance and trouble-free installation. The hose is built to exceed original equipment performance standards for pressure, burst strength, and tensile durability.