Sunsong 3401736 Power Steering Return Line Hose Assembly - Gear To Cooler

OE-Style Power Steering Return Hose

The Sunsong 3401736 power steering return line hose assembly is built for low-pressure, high-temperature steering return service and is engineered for direct replacement on select Cadillac applications. It is a fit-focused solution for restoring proper fluid return between the steering gear and cooler on 1987-1990 Cadillac DeVille, Fleetwood, and Commercial Chassis models.

Key Features

• Power steering return line hose assembly for low-pressure return circuits
• Maximum working pressure of 250 psi
• High-grade steel tubing with zinc electroplating for corrosion and rust resistance
• Precision-engineered for exact fit on listed Cadillac applications
• Includes required brackets and protective components where applicable
• CSM hose material for demanding steering fluid service
• End connections: 3/8 in. ID hose and 16 mm male O-ring
• Overall length: 201.4 in. (5115 mm)

Detailed Description

Sunsong 3401736 is a replacement power steering return line hose assembly made for vehicles that need a direct-fit steering return path from the gear to the cooler. It is engineered to meet or exceed original equipment performance standards for return hose service, with construction intended to handle heat, road exposure, moisture, and grime. This part cross-references Gates 370850 for the same application.

Compatible With 1987-1990 Cadillac DeVille, 1987-1990 Cadillac Fleetwood, and 1987-1990 Cadillac Commercial Chassis applications, including gear-to-cooler routing where listed. The Sunsong 3401736 is a practical replacement when the original return line shows age-related wear, seepage, or corrosion.

Common Repair Reasons

• Steering fluid seepage at the return hose
• Corrosion on the original steel line
• Cracked or hardened hose material from heat exposure
• Restricted fluid return causing noisy or inconsistent steering operation
• Damaged brackets, sleeves, or protective sections on the original assembly

Installation Notes

Verify the end fittings, routing, and position before installation. This assembly uses a 3/8 in. ID hose end and a 16 mm male O-ring connection, so matching the original line configuration is important for proper sealing and fit. On listed Cadillac DeVille, Fleetwood, and Commercial Chassis models, confirm whether the application is gear-to-cooler or the noted N/A configuration before ordering. Follow factory service procedures for fluid handling, line routing, and leak inspection after installation.

Quality Assurance

Sunsong manufactures this return hose assembly with corrosion-resistant zinc-plated steel tubing and application-specific engineering to support reliable steering system service. Part number 3401736 is built for the listed Cadillac fitments and is constructed to restore worn wearable sections to original-condition routing and function.