Gates 370070 Power Steering Pressure Line Hose Assembly

Gates 370070 Pressure Line Assembly

The Gates 370070 pressure line assembly is a power steering pressure line hose assembly built for OE-style replacement on select Nissan D21 trucks. It routes pressurized fluid from the pump to the rack or gear box and is made with materials selected for corrosion resistance and OE performance.

Compatible With 1990-1993 Nissan D21 power steering pressure line applications, this Gates pressure line assembly uses banjo ends at both connections and includes copper washers for the specified sealing points. The Gates Pressure Line Assembly line focuses on direct-fit hydraulic steering components for service replacement, and part number 370070 follows that approach with application-specific construction.

Key Features

• Power steering pressure line hose assembly for pump-to-rack/gear box routing
• Banjo end fittings on both ends, 16 mm diameter at each connection
• Includes copper washers for sealing at the banjo connections
• Anti-corrosion steel crimped sleeve for added durability
• Zinc single wall steel tube material
• Rubber hose exceeds SAE J188 specifications
• OE Performance comparison rating
• Includes switch port

Detailed Description

Gates 370070 is a pressure line assembly engineered for the hydraulic steering circuit on 1990-1993 Nissan D21 models. It is designed for the pump-to-rack/gear box position and uses banjo-style fittings at both ends, making it a direct replacement for the original pressure hose layout. The hose construction exceeds SAE J188 specifications, while the steel tube and anti-corrosion sleeve support long-term service in a demanding underhood environment.

This part cross-references Four Seasons 36522 and Sunsong 3401976 for the same application. If you are searching for a Nissan D21 power steering pressure hose, Nissan D21 steering pressure line, or Gates 370070 replacement hose, this assembly matches the listed fitment and connection style.

What It Helps Resolve

• Power steering fluid leaks at the pressure line
• Loss of steering assist from a damaged hose assembly
• Noise or stiffness caused by restricted hydraulic flow
• Corrosion-related failure in the steel line section
• Seepage at banjo fitting sealing points

Installation Notes and Tips

Verify the vehicle is a 1990-1993 Nissan D21 and confirm the pump-to-rack/gear box routing before installation. Inspect the banjo connection surfaces, replace worn sealing points as needed, and ensure the switch port configuration matches the original system. Proper routing and secure tightening are important to prevent leaks and maintain steering performance.

Quality Assurance

Gates lists this pressure line assembly with an OE Performance comparison rating and a rubber hose standard that exceeds SAE J188 specifications. The combination of corrosion-resistant steel components and application-specific fittings supports consistent replacement quality for Nissan D21 steering service.