Autobest HP4323 Electric Fuel Pump - In-Line

Overview of Autobest High Performance Electric Fuel Pump HP4323

The Autobest High Performance Electric Fuel Pump HP4323 is engineered for reliable fuel delivery in select Nissan and Isuzu vehicles. Designed as an external rollervane pump, it offers consistent flow and pressure to support engine performance in models like the Nissan 200SX, 280ZX, and Maxima, as well as the Isuzu 720 and 810.

• Average flow rating of 90 gallons per hour (GPH)
• Operating pressure range between 72.5 and 116 PSI
• Average current draw of 4.8 amps for efficient power use
• External rollervane pump design with male screw inlet (3/4-16 unf-2a)
• Includes FKM gasket/seal for secure installation
• Single hose outlet with 0.381-inch diameter
• Compatible with Nissan 200SX, 280ZX, 720, 810, Impulse, Maxima, and Isuzu models

About the High Performance Electric Fuel Pump Line

The Autobest High Performance Electric Fuel Pump line focuses on delivering consistent fuel flow and pressure for vehicles requiring reliable external fuel pumps. The HP4323 model exemplifies this with its rollervane pump mechanism, designed to maintain steady fuel delivery under varying engine demands. This product line is suited for applications where precise fuel management is critical to engine operation.

Product Details and Specifications

The HP4323 electric fuel pump operates with an average current draw of 4.8 amps, ensuring efficient electrical consumption. It delivers a flow rate of 90 GPH, suitable for moderate to high fuel demand scenarios. The pump maintains fuel pressure between 72.5 PSI minimum and 116 PSI maximum, supporting stable engine performance. Its external design simplifies installation and maintenance, featuring a 3/4-16 unf-2a male screw inlet and a single hose outlet sized at 0.381 inches. The included FKM gasket provides a durable seal to prevent leaks. This pump does not include a regulator or strainer and uses two male threaded terminals for electrical connections.

Compatible Vehicles and Applications

• Replacement fuel pump for Nissan 200SX and 280ZX models
• Suitable for Nissan 720, 810, Impulse, and Maxima vehicles
• Compatible with Isuzu 720 and 810 trucks
• Ideal for external fuel pump upgrades or replacements
• Addresses fuel delivery issues such as inconsistent pressure or flow

Installation Notes and Tips

The HP4323 is designed for external mounting with no specific installation warnings. Ensure the FKM gasket is properly seated to maintain a secure seal. The pump’s inlet and outlet connections require compatible fittings: a 3/4-16 unf-2a male screw inlet and a 0.381-inch hose outlet. Electrical connections use two male threaded terminals; verify polarity and secure connections to avoid electrical issues. This pump is not designed for negative ground systems.

Quality Assurance and Availability

The Autobest HP4323 electric fuel pump is manufactured in China and is currently available to order. It is built to meet performance specifications for the listed Nissan and Isuzu models. While no specific warranty information is provided, Autobest products typically adhere to industry standards for durability and reliability.