Sunsong 3403679 Power Steering Pressure Line Hose Assembly

OE-Style Power Steering Pressure Line

Sunsong 3403679 is a power steering pressure line hose assembly built for select Infiniti sport applications. It is engineered to meet demanding pressure requirements while maintaining the correct fit for the steering system on 2007-2015 Infiniti G35, G37, and Q60 models with sport-related configurations.

Key Features

• Max working pressure rated to 1,500 psi
• Burst pressure rating of 8,700 psi
• Tensile strength of 1,600 lb for added durability
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Precision-engineered hose assembly for exact fit
• High-pressure tested before leaving the factory
• End fittings: 16 mm banjo and 14 mm male O-ring
• Hose length: 66.9 in. (1700 mm)
• CSM hose material

Detailed Description

This Sunsong power steering pressure line hose assembly is built to restore steering fluid transfer in applications that demand a precise OE-style routing and connection layout. Part number 3403679 is made for 2014-2015 Infiniti Q60, 2009-2013 Infiniti G37, and 2007-2008 Infiniti G35 and 2008 Infiniti G37 models with Sport or Sport Premium Package, including configurations with 4 Wheel Active Steering where listed. This part cross-references Nissan/Infiniti OE number 49710JK62C-pr for the same application.

What It Helps Address

• Power steering fluid leaks from a worn or damaged pressure hose
• Loss of steering assist caused by pressure line failure
• Noise or stiffness related to restricted steering fluid flow
• Corrosion-related hose deterioration in harsh road conditions
• Fitment issues from an incorrect replacement hose

Installation Notes and Tips

Verify the vehicle’s trim and steering configuration before ordering, since this hose is listed for Sport or Sport Premium Package applications and select 4 Wheel Active Steering models. Confirm the 16 mm banjo and 14 mm male O-ring end connections match the original hose routing on the vehicle. Inspect related steering components, seals, and fluid condition during replacement to help ensure proper system operation after installation.

Quality Assurance

Sunsong states that its pressure hoses are tested at high pressure before shipment and built to exceed original equipment performance standards. The steel tubing is zinc electroplated to improve resistance to rust, road salt, water, humidity, and grime, supporting long service life in demanding driving conditions.