Carter P4259 Electric Fuel Pump - In-Line

Reliable Electric Fuel Pump for Diesel and Gas Engines

The Carter P4259 electric fuel pump is designed for external mounting and supports both diesel and gasoline fuel types. Featuring a rotary vane pump design, this unit delivers consistent fuel flow for a variety of automotive applications, including popular makes and models requiring a 6-volt fuel pump solution.

• Electric fuel pump with rotary vane design
• Compatible with diesel and gasoline fuel
• External pump with hose barb inlet and outlet
• 6-volt operation with negative ground
• Includes mounting bracket and hardware for easy installation
• Universal fit with 1/4-18 NPSF inlet and outlet thread sizes
• Two-pin male terminals for secure electrical connection

Technical Specifications and Features

The Carter P4259 electric fuel pump operates at 6 volts and is designed for external installation, making it suitable for a range of vehicles that require an external fuel delivery system. It features hose barb fittings on both the inlet and outlet, each with a 1/4-18 NPSF thread size and a 3/8-inch outlet diameter, ensuring compatibility with standard fuel lines. The pump uses a rotary vane mechanism to provide steady fuel flow and pressure, supporting both diesel and gasoline engines. The unit includes a mounting bracket and hardware for secure attachment, but does not come with a fuel sending unit, regulator, wiring harness, or strainer. Electrical connections are made via two male pin terminals, and the pump is designed with a negative ground system.

Applications and Problem Solving

This electric fuel pump is suitable for automotive applications requiring a reliable external fuel pump compatible with both diesel and gasoline engines. It is commonly used in vehicles that operate on a 6-volt electrical system and need a universal fit external pump.

• Resolves fuel delivery issues caused by failing or weak fuel pumps
• Replaces pumps with incompatible inlet/outlet fittings
• Addresses fuel flow interruptions in diesel or gasoline engines
• Supports restoration projects requiring 6-volt fuel pump replacements
• Provides a reliable fuel supply for vehicles with external fuel pump setups

Installation Notes and Tips

When installing the Carter P4259 fuel pump, ensure the pump is mounted securely using the included bracket and hardware to minimize vibration and noise. Connect fuel lines to the hose barb fittings, verifying proper thread engagement on the 1/4-18 NPSF fittings. Confirm the vehicle’s electrical system is 6 volts and wired with a negative ground before connecting the two-pin male terminals. Since the pump does not include a wiring harness or regulator, use compatible components as needed to complete the installation. Check for fuel leaks after installation and test pump operation before finalizing the setup.

Quality Assurance and Warranty

Carter is a recognized brand in fuel delivery components, and the P4259 electric fuel pump is manufactured to meet industry standards for durability and performance. While specific warranty details are not provided, Carter products typically come with a limited warranty against defects in materials and workmanship. For optimal performance, follow installation guidelines and use the pump within its specified voltage and fuel type parameters.