Sunsong 3403115 Power Steering Return Line Hose Assembly

Sunsong 3403115 Power Steering Return Hose

The Sunsong 3403115 power steering return line hose assembly is built for low-pressure, high-temperature return-side service. It is engineered to match original equipment fit and restore the steering system on applications such as Honda Civic and Toyota Corolla where a precise return hose replacement is needed.

Key Features

• Power steering return line hose assembly for return-side fluid routing
• Max working pressure of 250 psi for low-pressure steering return applications
• 41 in. overall length for application-specific routing
• End 1: ID hose connection
• End 2: 16 mm male O-ring fitting
• CSM hose material for fluid and heat resistance
• High-grade steel tubing with zinc electroplating for corrosion and rust resistance
• Precision-engineered to exact fit for OE-style replacement

Detailed Description

Sunsong 3403115 is a power steering return line hose assembly made for vehicles that require a direct-fit replacement on the return side of the steering system. The hose is constructed with CSM material and paired with steel tubing finished with zinc plating to help resist corrosion from humidity, road salt, water, and grime. This makes it a practical choice for daily-driven Honda Civic and Toyota Corolla applications where steering fluid routing and durability matter. The 3403115 part number is also referenced by aftermarket cross numbers including Gates 353890 for the same application.

Because this assembly is precision engineered, it is intended to restore the original routing and connection style of the vehicle’s steering return line. The 3403115 is a focused replacement for drivers searching for a Honda Civic power steering return hose, Toyota Corolla return line hose assembly, or a Sunsong 3403115 steering hose replacement.

Common Problems This Part Can Address

• Leaking or seepage at the power steering return hose
• Cracked, hardened, or heat-damaged hose material
• Corrosion on steel tubing or fittings
• Improper steering fluid routing caused by a worn hose assembly
• Noise or fluid loss related to a deteriorated return line

Installation Notes and Tips

Verify the end connections, hose length, and fitting style before installation. This assembly uses an ID hose on one end and a 16 mm male O-ring fitting on the other, so matching the vehicle’s original routing and connection points is important. Inspect nearby brackets, grommets, heat shields, bushings, and protective sleeves during replacement and reuse or replace them as needed based on the vehicle’s original setup.

Quality Assurance

This Sunsong return hose assembly is manufactured to exceed original equipment performance standards for return-side steering service. Its steel tubing, zinc coating, and application-specific engineering support consistent fitment and corrosion resistance in demanding underhood and undercar conditions.