Sunsong 3401945 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Hose for Classic GM Fitment

The Sunsong 3401945 power steering pressure line hose assembly is built for classic Cadillac and Pontiac applications that need a direct-fit hydraulic line with OE-style routing and connection points. It is engineered for dependable pressure handling, corrosion resistance, and consistent steering response in 1966-1969 vehicles.

• Max working pressure rated to 1,500 psi
• Burst pressure rating of 8,700 psi
• Tensile strength of 1,600 lb
• High-grade steel tubing with zinc electroplating for rust and corrosion resistance
• Precision-engineered fit for original-condition restoration
• High-pressure tested before shipment
• End 1 fitting: 5/8 in. male inverted flare
• End 2 fitting: 11/16 in. male inverted flare
• 26.8 in. length
• Hose materials: CSM and steel

Detailed Product Overview

Sunsong 3401945 is a power steering pressure hose assembly for classic Cadillac and Pontiac steering systems. It is built with steel tubing protected by zinc plating and a CSM hose section to help resist road salt, moisture, grime, and high-humidity exposure. The hose is precision engineered to match the original layout and restore worn steering plumbing to proper operating condition. This part cross-references Gates 352380 for the same application.

Compatible With 1966-1967 Cadillac Commercial Chassis, N/A; 1966-1967 Cadillac DeVille, N/A; 1966-1967 Cadillac Fleetwood, N/A; 1967 Pontiac Firebird, N/A w/ Air Pump; 1968-1969 Pontiac Firebird, N/A. The Sunsong 3401945 is also a relevant search match for drivers looking for a 1967 Pontiac Firebird power steering pressure hose or a 1966-1967 Cadillac pressure line hose assembly.

Common Problems This Hose Can Address

• Power steering fluid leaks from a worn or corroded pressure line
• Hard steering caused by pressure loss in the hydraulic circuit
• Noise or inconsistent steering assist from a damaged hose assembly
• Rust-related deterioration on original steel steering lines
• Fitment issues when replacing an aging OE-style pressure hose

Installation Notes and Tips

Verify the end fitting sizes, hose length, and routing before installation. This assembly uses 5/8 in. and 11/16 in. male inverted flare connections and does not include a bracket or PS switch port. On 1967 Pontiac Firebird applications, confirm the vehicle is equipped with the air pump configuration listed in the fitment data. Inspect mating flare seats, line routing, and surrounding components for wear before final tightening.

Quality Assurance

Each Sunsong pressure hose is high-pressure tested at the factory before it leaves production. The hose construction is specified to exceed original equipment performance standards, with corrosion-resistant steel tubing and durable hose materials selected for long service life. Part number 3401945 is built for direct replacement use in the listed Cadillac and Pontiac applications.