Sunsong 3405348 Power Steering Return Line Hose Assembly - From Gear

Sunsong 3405348 Power Steering Return Hose

The Sunsong 3405348 power steering return line hose assembly is built for direct replacement on select Buick applications with a cooler. It is engineered for exact form, fit, and function, helping restore proper fluid return from the steering gear.

For 2005-2008 Buick Allure and 2005-2008 Buick LaCrosse, this return hose assembly supports a clean OE-style repair with the correct end connections and hose length.

Key Features

• Power steering return line hose assembly for steering fluid return service
• CSM hose material for fluid transfer durability
• 56.69 in. overall length for the listed Buick applications
• End 1: 16 mm male O-ring fitting
• End 2: 9.6 mm ID hose connection
• No bracket included
• No switch port included
• Direct replacement for select Buick Allure and Buick LaCrosse models

Detailed Description

Sunsong 3405348 is a steering return hose assembly developed by a vertically integrated automotive fluid transfer manufacturer focused on hose and line engineering. The part is built to match the required routing and connection style for the listed vehicles, supporting proper return flow from the power steering system back to the reservoir or cooler circuit. This makes it a practical choice when replacing a worn, leaking, or damaged return line on a 2005-2008 Buick Allure or 2005-2008 Buick LaCrosse, from gear, with cooler.

This part cross-references Four Seasons (e.g., 37853, 55431) for the same application. Part number 3405348 is also referenced in interchange listings for related OE-style service use.

What It Helps Fix

• Power steering fluid leaks at the return line
• Cracked, hardened, or deteriorated hose material
• Restricted fluid return caused by a damaged hose assembly
• Noise or poor steering feel related to low steering fluid level
• Service issues on Buick Allure and Buick LaCrosse return line repairs

Installation Notes and Tips

Verify the end fittings, hose length, and routing before installation. This assembly uses a 16 mm male O-ring connection on one end and a 9.6 mm ID hose connection on the other, so matching the original configuration is important for a proper seal. Confirm the vehicle is equipped with the cooler setup shown in the fitment data and inspect adjacent steering components for wear before completing the repair.

Quality Assurance

Sunsong manufactures automotive fluid transfer hoses and lines with a focus on OE-style fitment and manufacturing control. The brand emphasizes exact form, fit, and function for the listed application, supporting a precise replacement for the steering return system.