Sunsong 3402273 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Line Hose for Ford and Mercury

Sunsong 3402273 is a power steering pressure line hose assembly built for select Ford Pinto, Ford Mustang, Mercury Bobcat, and Mercury Capri applications. It is engineered to meet demanding pressure requirements and restore proper steering fluid transfer in vehicles equipped with the listed rack-and-pinion setups.

Key Features

• Max working pressure of 1,500 psi for pressure-side steering service
• Burst pressure rating of 8,700 psi and tensile strength of 1,600 lb
• High-grade steel tubing with zinc electroplating for corrosion resistance
• Precision-engineered hose assembly for exact fitment
• Built with CSM hose material
• End fittings: 1/2 in male O-ring and 5/8 in swivel O-ring
• 54 in. length for the specified steering routing

Detailed Description

This Sunsong pressure hose assembly is made for steering systems that require a direct replacement pressure line with the correct O-ring fittings and hose length. Part number 3402273 is listed for 1978-1980 Ford Pinto, 1978-1980 Mercury Bobcat, 1979 Ford Mustang with TRW rack and pinion gear, 1979 Mercury Capri with TRW rack and pinion gear, and 1977 Mercury Bobcat from 7/6 with O-ring fitting. This part cross-references Gates 71020 for the same application.

What It Helps Address

• Power steering fluid leaks at the pressure hose connection points
• Loss of steering assist caused by a damaged or worn pressure line
• Corrosion-related hose deterioration from road salt, moisture, and grime
• Incorrect fitment from using a hose with the wrong O-ring style or length
• Pressure-side steering noise or performance issues linked to hose failure

Installation Notes and Tips

Verify the vehicle’s steering configuration before ordering, especially the TRW rack and pinion application notes for the 1979 Ford Mustang and 1979 Mercury Capri. Confirm end fitting sizes, hose routing, and the 54-inch length against the original line. This assembly does not include a bracket or PS switch port, so match the vehicle’s original layout before installation.

Quality Assurance

Each Sunsong 3402273 hose is pressure tested before it leaves the factory. The steel tubing is zinc plated to help resist rust and corrosion, supporting long-term service in harsh driving conditions.