Autobest F4390A Fuel Pump Module Assembly

Reliable Fuel Pump Module Assembly for Mercedes-Benz ML Series

The Autobest F4390A fuel pump module assembly is engineered to meet the fuel delivery needs of Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500 models. Designed as an in-tank unit, this performance-grade fuel pump module ensures consistent fuel flow and pressure for optimal engine operation.

• Average current draw of 5 amps for efficient power consumption
• Fuel flow rating of 32.9 gallons per hour (GPH) to support engine demands
• Includes fuel sending unit for accurate fuel level readings
• Male racetrack connector with quick connect outlet for secure electrical and fuel line connections
• Constructed with durable POM housing material and NBR gasket material
• Internal strainer inlet type with 0.314-inch inlet size
• Maximum pump pressure of 108.75 PSI and minimum pressure of 79.75 PSI
• Negative ground compatible for proper electrical grounding
• Designed specifically for in-tank installation

Detailed Product Description

The Autobest F4390A fuel pump module assembly is a performance-grade component designed to replace the original fuel pump in select Mercedes-Benz ML models. This module features an internal strainer inlet and a fuel sending unit, providing both fuel delivery and accurate fuel level monitoring. The pump operates at an average current draw of 5 amps and delivers a flow rate of 32.9 GPH, ensuring your engine receives a steady and reliable fuel supply. The housing is made from POM material, known for its strength and resistance to fuel corrosion, while the included NBR gasket material helps maintain a secure seal within the fuel tank. The male racetrack connector and quick connect outlet simplify installation and ensure a secure connection to the vehicle's fuel system.

Compatible Vehicles and Applications

• Mercedes-Benz ML55 AMG
• Mercedes-Benz ML320
• Mercedes-Benz ML350
• Mercedes-Benz ML430
• Mercedes-Benz ML500

This fuel pump module assembly is specifically designed for in-tank installation in these Mercedes-Benz ML models, providing a direct replacement for the factory unit.

Common Issues Addressed by This Fuel Pump Module

• Intermittent or complete fuel delivery failure
• Inaccurate fuel level readings due to faulty sending unit
• Low fuel pressure causing engine performance issues
• Electrical connector or wiring problems affecting pump operation
• Fuel pump noise or overheating from worn components

Installation Notes and Tips

The Autobest F4390A fuel pump module assembly is designed for straightforward in-tank replacement without special installation warnings. Ensure the vehicle’s negative ground system is properly connected before installation. Use appropriate tools to disconnect the male racetrack connector and quick connect outlet carefully to avoid damage. Verify the gasket seating to prevent fuel leaks. It is recommended to inspect the fuel tank and lines for contamination or damage during installation.

Quality Assurance and Warranty

Manufactured to meet performance-grade standards, the Autobest F4390A fuel pump module assembly undergoes quality control to ensure reliable operation. This product is available to order and backed by Autobest’s warranty coverage, providing assurance of durability and function for your Mercedes-Benz ML55 AMG, ML320, ML350, ML430, and ML500 fuel system needs.