Sunsong 3401876 Power Steering Pressure Line Hose Assembly

Power Steering Pressure Line Hose Assembly

Sunsong 3401876 is a power steering pressure line hose assembly built for select late-1970s GM and Pontiac applications. It is engineered to OE specifications for direct replacement service on vehicles such as the 1978 Chevrolet Caprice, 1978 Chevrolet Impala, 1978 Chevrolet Monte Carlo, and 1977-1979 Pontiac Phoenix.

Key Features

• Max working pressure of 1,500 psi for demanding steering system operation
• Burst pressure rating of 8,700 psi and tensile strength of 1,600 lb
• 38 in. hose length with 11/16 in. male inverted flare end 1 and 5/8 in. male inverted flare end 2
• CSM hose material with steel tubing for strength and fluid resistance
• Precision-engineered to exact fit for OE-style replacement on the listed vehicles
• High-grade steel tubing with zinc electroplating for corrosion and rust resistance
• High-pressure tested before leaving the factory

Detailed Description

This Sunsong power steering pressure line hose assembly is designed to restore steering fluid transfer in applications that require a direct-fit replacement. The hose construction combines CSM and steel materials to handle pressure, resist wear, and maintain reliable performance in harsh underhood conditions. It is a practical choice for owners servicing a 1979 Oldsmobile Delta 88, 1978 Pontiac Laurentian, or 1978 Pontiac Parisienne, as well as other listed Chevrolet, Buick, and Pontiac models.

The steel tubing is zinc coated to help resist corrosion from humidity, road salt, water, and grime. Sunsong 3401876 is built to exact fit standards and is factory pressure tested to support trouble-free installation and operation. This part cross-references Gates 361290 and Dayco 70277 for the same application.

What It Helps Fix

• Power steering fluid leaks from a worn or damaged pressure hose
• Hard steering caused by pressure loss in the steering circuit
• Cracked, corroded, or fatigued hose and tube sections
• Noise or inconsistent steering assist related to restricted fluid flow
• Failed original hose assemblies on classic GM and Pontiac vehicles

Installation Notes and Tips

Verify end fittings, hose length, and routing before installation. This assembly uses male inverted flare connections at both ends and does not include a bracket or power steering switch port. Confirm the vehicle’s steering line layout matches the listed fitment before tightening connections and bleeding the system after service.

Quality Assurance

Each hose is subjected to a high-pressure quality assurance test before it leaves the factory. Sunsong 3401876 is engineered to meet original equipment performance expectations for the listed applications, including 1977 Buick Skylark, 1978 Chevrolet Caprice, and 1977-1979 Pontiac Phoenix fitments.