Sunsong 3404408 Power Steering Pressure Line Hose Assembly - Intermediate Hose

Power Steering Pressure Line Hose for XTS and LaCrosse

This Sunsong power steering pressure line hose assembly is built for direct replacement on select Cadillac XTS and Buick LaCrosse applications. Part number 3404408 is engineered to restore steering fluid transfer with the correct fit, pressure capacity, and corrosion-resistant construction.

Key Features

• Direct-fit power steering pressure line hose assembly for intermediate hose applications
• End fittings: 16 mm male O-ring at both ends
• Hose length: 34.5 in. (876 mm)
• CSM hose material for durable fluid handling
• High-grade steel tubing with zinc electroplating for added resistance to rust and corrosion
• Pressure-rated to 1,500 psi working pressure, 8,700 psi burst pressure, and 1,600 lb tensile strength
• Precision-engineered to restore original routing and fitment on supported vehicles
• Factory pressure-tested before shipment

Detailed Description

Sunsong 3404408 is a power steering pressure line hose assembly made for intermediate hose locations on select vehicles. It is compatible with 2013-2019 Cadillac XTS, intermediate hose, lower; 2010-2016 Buick LaCrosse, intermediate hose, lower; and 2010 Buick Allure, intermediate hose, lower. This part cross-references Dayco 81271 and Gates 352912 for the same application.

The hose is built with CSM material and steel tubing that is zinc plated to help resist humidity, road salt, water, and grime. With 16 mm male O-ring fittings on both ends and a 34.5-inch overall length, part number 3404408 is intended to match the original routing and connection points on the listed Cadillac XTS and Buick LaCrosse applications.

Common Problems This Part Can Help Address

• Power steering fluid leaks from a worn or damaged pressure line
• Loss of steering assist caused by pressure line failure
• Corrosion-related hose deterioration in harsh road conditions
• Improper fit from a bent, fatigued, or previously repaired line
• Noisy or inconsistent steering operation linked to fluid loss

Installation Notes and Tips

Verify the vehicle’s intermediate hose position, lower routing, and 16 mm male O-ring connections before installation. Compare the original hose length and end style to Sunsong 3404408 to confirm correct application on Cadillac XTS and Buick LaCrosse models. After installation, inspect all connections for leaks and confirm proper steering fluid level and operation.

Quality Assurance

Each hose is pressure-tested at the factory before it leaves production. Sunsong states that this assembly is engineered to exceed original equipment performance standards for pressure capacity and durability.