Sunsong 3403677 Power Steering Hose Assembly

OE-Style Power Steering Hose Assembly

The Sunsong 3403677 is an exact replacement power steering hose assembly for select Infiniti applications. It combines the pressure hose and return hose in a pre-assembled layout with brackets to reduce installation time and restore the original routing and fit.

Built for 2009-2015 Infiniti G37, 2011-2012 Infiniti G25, 2014-2015 Infiniti Q60, and 2015 Infiniti Q40 applications, this assembly is engineered to OE specifications for direct replacement service.

Key Features

• Exact replacement pressure hose and return hose assembly
• Pre-assembled with brackets for easier installation
• Precision-engineered to original fit and routing
• Includes required wearable components such as grommets, switch ports, heat shields, bushings, and protective sleeves as needed
• Pressure hose performance rated to 1,500 psi working pressure, 8,700 psi burst pressure, and 1,600 lb. tensile strength
• High-pressure quality assurance test performed before shipment
• Length: 139 in. (3525 mm)
• Hose material: CSM

Detailed Description

Sunsong 3403677 is designed as a direct OE-style replacement for the original pressure and return hose assembly used on select Infiniti steering systems. The pre-assembled design helps simplify service by keeping the hose routing and bracket locations aligned with factory specifications. This makes it a practical choice for Infiniti G37, G25, Q60, and Q40 repairs where restoring steering system integrity and original hose placement matters.

This part cross-references Nissan 49710JK61C for the same application. The assembly is built with various end fittings and includes the mounting and protective components required to return wearable parts to original condition where applicable.

What It Helps Fix

• Power steering fluid leaks from worn or damaged hose sections
• Loss of steering assist caused by pressure hose failure
• Noisy steering operation related to fluid loss or hose deterioration
• Incorrect hose routing after prior repair work
• Wear at brackets, grommets, sleeves, or protective components

Installation Notes and Tips

Verify vehicle application by year and model before installation. This assembly is listed for 2009 Infiniti G37 from 5/1, 2010-2013 Infiniti G37, 2011-2012 Infiniti G25, 2014-2015 Infiniti Q60, and 2015 Infiniti Q40. The part number 3403677 is intended for OE-style replacement service, so matching the original hose routing and connection points is important during installation.

Because the assembly is pre-assembled with brackets, installation can be more straightforward than replacing individual hoses. Inspect the steering system for fluid contamination and related wear before completing the repair.

Quality Assurance

Each pressure hose is high-pressure tested before leaving the factory to confirm proper operation. The pressure hose is engineered beyond original equipment performance targets, with a 1,500 psi maximum working pressure, 8,700 psi burst rating, and 1,600 lb. tensile strength for durable service.