Gates 361290 Power Steering Pressure Line Hose Assembly

Gates 361290 Pressure Line Assembly

The Gates 361290 power steering pressure line hose assembly is built for pump-to-rack/gear box routing with OE performance in mind. It is a direct-fit style pressure line for select Chevrolet, Buick, Oldsmobile, and Pontiac applications, including the 1977 Buick Skylark and 1978 Chevrolet Caprice.

Key Features

• Power steering pressure line hose assembly for pump to rack/gear box routing
• 38-inch length for the specified vehicle applications
• Male inverted flare ends on both connections
• End diameters: .375 in. and .4375 in.
• Anti-corrosion steel crimped sleeve construction
• Zinc single wall steel tube material
• Rubber hose exceeds SAE J188 specifications
• OE performance rating for factory-style service fitment

Product Details

Gates Pressure Line Assembly 361290 is engineered as a power steering pressure line hose assembly for vehicles using a pump-to-rack or pump-to-gear box layout. The hose assembly uses male inverted flare ends, a 38-inch overall length, and corrosion-resistant steel components to support reliable steering fluid transfer under pressure. This Gates pressure line assembly is listed for select 1977-1979 and 1978-1979 GM passenger car applications, including 1977 Buick Skylark, 1978 Chevrolet Caprice, 1978 Chevrolet Impala, 1978 Chevrolet Monte Carlo, 1979 Oldsmobile Delta 88, and 1977-1979 Pontiac Phoenix.

The Gates Pressure Line Assembly product line focuses on OE-style hydraulic steering service parts built to match factory routing and connection requirements. Part number 361290 is a practical choice when replacing a worn or leaking steering pressure hose on a compatible GM platform, and it cross-references Dayco 70277 for the same application.

What This Part Helps Address

• Steering fluid leaks from a cracked or aged pressure hose
• Loss of steering assist caused by pressure line failure
• Noise or stiffness related to restricted hydraulic flow
• Corrosion at the steel tube or crimped hose sections
• Fitment issues when replacing an OE-style pump-to-rack/gear box line

Installation Notes and Tips

Verify the hose routing, end style, and overall length before installation. This assembly uses male inverted flare connections and does not include mounting brackets, bracket bushings, copper washers, heat sleeves, rubber mounts, or a switch port. Confirm the vehicle’s steering layout and inspect mating fittings for wear or damage before connecting the new line.

For fitment-specific searches, this part is listed for 1977 Buick Skylark, 1978 Chevrolet Caprice, 1978 Chevrolet Impala, 1978 Chevrolet Monte Carlo, 1979 Oldsmobile Delta 88, and 1977-1979 Pontiac Phoenix.

Quality Assurance

Gates builds this pressure line assembly to OE performance standards, with rubber hose construction that exceeds SAE J188 specifications and steel components selected for corrosion resistance. The design supports factory-style replacement service for the listed applications.