Sunsong 3404645 Power Steering Return Line Hose Assembly - From Gear

Power Steering Return Hose for Altima

The Sunsong 3404645 power steering return line hose assembly is built for 2013-2018 Nissan Altima models with the return line routed from the gear. It is engineered for low-pressure, high-temperature steering return service and built to restore proper fluid routing in the power steering system.

• Fits 2013-2018 Nissan Altima, from gear
• Return line hose assembly for power steering systems
• CSM hose material for fluid-handling durability
• Maximum working pressure rated at 250 psi
• End connections: 11.5 beaded tube and 9.6 ID hose
• Part number: 3404645

Detailed Product Overview

Sunsong 3404645 is a direct-fit power steering return line hose assembly for the Nissan Altima application listed above. The hose is designed around the original routing and connection style, with a beaded tube end on one side and an ID hose connection on the other to support a secure return-side fluid path. This part cross-references Gates 367025 for the same application.

According to the manufacturer, the return hose assembly uses high-grade steel tubing with zinc electroplating for corrosion and rust resistance in harsh conditions such as humidity, road salt, water, and grime. The assembly is precision engineered to match the vehicle application and restore worn steering return components to original condition. Part number 3404645 is a practical replacement choice when servicing a Nissan Altima power steering return line.

Common Problems This Part Can Address

• Power steering fluid seepage at the return line
• Cracked, hardened, or deteriorated hose material
• Corrosion on exposed tubing or fittings
• Restricted or unstable steering fluid return flow
• Noisy steering operation caused by a compromised return hose

Installation Notes and Tips

Verify the vehicle is a 2013-2018 Nissan Altima with the return line from the gear before ordering. Inspect mating fittings, hose routing, and nearby brackets or shields during replacement, and confirm the end sizes match the original system. After installation, refill the power steering system with the correct fluid and check for leaks with the engine running and steering cycled.

Quality Assurance

Sunsong states that this return hose assembly exceeds original equipment performance standards for low-pressure, high-temperature steering return service. The construction and corrosion-resistant tubing are intended to support long-term durability in demanding underbody conditions.