Sunsong 3405277 Power Steering Pressure Line Hose Assembly

Compatible With Audi Q7 Steering Repair

Sunsong 3405277 is a power steering pressure line hose assembly built for 2011-2015 Audi Q7 applications. It is engineered to meet demanding pressure requirements while restoring proper steering fluid transfer in the power steering system.

This hose assembly is a direct-fit replacement for Audi Q7 models from 2011 through 2015 and is built with CSM material for durability in underhood conditions. Part number 3405277 is also cross-referenced to Gates 353071 for the same application.

Key Features

• Fits 2011-2015 Audi Q7, N/A
• Power steering pressure line hose assembly
• Maximum working pressure: 1,500 psi
• Burst pressure rating: 8,700 psi
• Tensile strength: 1,600 lb
• CSM hose material for long service life
• End fittings: 16 banjo and 18 male O-ring
• Part number: 3405277

Detailed Description

Sunsong 3405277 is a pressure hose assembly for the power steering system on the Audi Q7. It is built to restore fluid flow between steering components with exact-fit engineering for 2011, 2012, 2013, 2014, and 2015 Audi Q7 models. The hose is designed around high-pressure steering demands and uses CSM construction to handle heat and fluid exposure in daily driving conditions.

For buyers searching for an Audi Q7 power steering pressure hose, Audi Q7 steering hose replacement, or Sunsong 3405277 fitment for 2011-2015 Audi Q7, this assembly provides the correct end styles and application-specific design. Part number 3405277 is also referenced by Gates 353071 for the same application.

Common Problems This Part Addresses

• Power steering fluid leaks from a worn pressure hose
• Loss of steering assist caused by hose failure
• Cracked or deteriorated hose material from age and heat
• Pressure loss in the steering hydraulic circuit
• Noise or inconsistent steering response related to fluid transfer issues

Installation Notes and Tips

Confirm the banjo and male O-ring end connections before installation and compare the original hose routing to the replacement assembly. Inspect nearby seals, clamps, and steering components for wear before reassembly. After installation, refill the system with the correct power steering fluid and bleed air from the hydraulic circuit according to the vehicle service procedure.

Quality Assurance

This hose is pressure tested before it leaves the factory to verify performance and installation readiness. Sunsong states that its pressure hoses are engineered to exceed original equipment performance standards, with corrosion-resistant steel tubing and zinc plating used where applicable to improve resistance to humidity, road salt, water, and grime.