Sunsong 3405401 Power Steering Return Line Hose Assembly - Cooler To Reservoir

Power Steering Return Hose for Acura TL

Sunsong 3405401 is a power steering return line hose assembly for the 2007-2008 Acura TL, cooler to reservoir. It is built for low-pressure, high-temperature return-line service and is engineered to restore proper fluid routing in the steering system.

• Fits 2007-2008 Acura TL, cooler to reservoir
• Return line hose assembly for power steering systems
• CSM hose material for fluid-handling durability
• Rated for up to 250 psi maximum working pressure
• End 1 and End 2 use 9.6 mm ID hose connections
• Part number: 3405401

Built for Return-Line Service

This Sunsong power steering return line hose assembly is made to meet original equipment performance standards for the return side of the steering system. The hose is intended for low-pressure circulation between the cooler and reservoir, and its construction supports high-temperature operation where a reliable fluid path is needed. For buyers searching for a 2007 Acura TL power steering return hose or a 2008 Acura TL cooler to reservoir hose, 3405401 provides a direct-fit service part reference.

All tubing is manufactured from high-grade steel with zinc electroplating for added resistance to corrosion and rust from humidity, road salt, water, and grime. This part cross-references Gates 352944 and ACI 81300 for the same application. The part number 3405401 is also useful when comparing replacement options for Acura TL steering repair work.

Common Problems This Hose Can Address

• Power steering fluid seepage or leakage in the return line
• Restricted fluid flow between the cooler and reservoir
• Corrosion-related hose or tube deterioration
• Noise or inconsistent steering assist caused by a compromised return path
• Service replacement for worn original return hose components

Installation Notes and Tips

Verify the cooler-to-reservoir routing before installation and compare the hose ends to the original part. Confirm the 9.6 mm ID hose connections and check surrounding components for wear, contamination, or damage before reassembly. Because this assembly is specific to the 2007-2008 Acura TL, matching the vehicle position and routing is important for proper fitment.

Quality Assurance

Sunsong return hoses are engineered to meet original equipment performance standards and are built with corrosion-resistant materials for long-term service in demanding underhood conditions. Part number 3405401 is manufactured for accurate fit and dependable steering-system fluid transfer.