Sunsong 3401237 Power Steering Hose Assembly

OE-Style Power Steering Hose Assembly

The Sunsong 3401237 is an exact replacement power steering hose assembly for select Toyota applications. It combines the pressure and return hoses in a pre-assembled layout with brackets to reduce installation time and restore the original routing and fit.

Compatible with 2003-2009 Toyota 4Runner and 2007-2009 Toyota FJ Cruiser, this assembly is built 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 OE fitment requirements
• Includes brackets, grommets, heat shields, bushings, and protective sleeves as required
• Pressure hose rated for 1,500 psi max working pressure, 8,700 psi burst pressure, and 1,600 lb tensile strength
• High-pressure tested before leaving the factory
• Part number: 3401237

Detailed Description

Sunsong 3401237 is a power steering hose assembly designed as a direct OE replacement for Toyota 4Runner and Toyota FJ Cruiser models listed in the fitment data. The assembly is engineered to restore the original pressure and return hose routing, with pre-installed brackets and application-specific components used to match factory configuration. The pressure hose construction uses CSM material and is built to exceed original equipment performance standards for durability and long service life. This part cross-references Rein PSH0507 for the same application.

Common Issues This Part Can Address

• Power steering fluid leaks from worn hose sections
• Cracked or deteriorated hose material from age and heat exposure
• Incorrect hose routing after prior repairs
• Noise or steering effort caused by pressure loss in the steering system
• Fitment problems from replacing individual hoses instead of the full assembly

Installation Notes and Tips

Verify hose routing, bracket locations, and end fitting style against the original assembly before installation. Inspect related steering components, grommets, bushings, and heat protection points for wear, and replace any damaged mating parts as needed to maintain proper system operation. After installation, refill the system with the correct power steering fluid and bleed air from the steering system according to the vehicle service procedure.

Quality Assurance

Each pressure hose is high-pressure tested at the factory before shipment to help ensure proper operation after installation. The hose assembly is engineered to meet OE specifications and the pressure hose is built to exceed original equipment performance standards. Part number 3401237 is also listed under Sunsong 3401237 for reference.