Fuel Pump & Sending Unit Assembly for Mercedes-Benz ML320, ML350, ML430, ML500 & ML55 AMG

A Fuel Pump & Sending Unit Assembly for the Mercedes-Benz ML-Class

This is a complete in-tank fuel pump and sending unit module assembly built for a range of Mercedes-Benz ML-Class models, covering the 1998-2003 ML320, 2003-2005 ML350, 1999-2001 ML430, 2002-2005 ML500, and 2000-2003 ML55 AMG, cross-referenced to manufacturer part number FPA61918. If your ML is struggling to start, losing power under load, or the fuel gauge is reading erratically, a worn fuel pump module is a common cause across this generation.

Why One Module Covers Five Different ML Variants

The first-generation ML-Class shared the same fuel tank design and delivery module mounting across its four and six-cylinder-equivalent V6, V8, and AMG-tuned engine options, since Mercedes-Benz built these trims on a common platform throughout this production run. Because the fuel pump module's mounting flange, electrical connector, and sending unit are tied to that shared tank design rather than to the specific engine under the hood, the same assembly fits all five ML variants across their overlapping production years.

Key Features

• Cross-referenced to manufacturer part number FPA61918
• Complete assembly includes fuel sending unit, gasket, and strainer
• Rigorously tested to meet SAE fuel pump performance standards
• Backed by a limited lifetime warranty on the part itself

Specifications

• Average flow rating: 33.02 gph
• Maximum pressure: 125 PSI
• Placement: Rear, in-tank
• Pump type: Electric
• Condition: New

Compatibility

Fits the 1998-2003 Mercedes-Benz ML320, 2003-2005 ML350, 1999-2001 ML430, 2002-2005 ML500, and 2000-2003 ML55 AMG. Because fuel delivery specifications can vary between the standard V6/V8 trims and the AMG-tuned ML55, it's worth confirming your exact trim and model year against the part number above before ordering.

Signs Your Fuel Pump Module Needs Replacing

A failing fuel pump module typically shows up as difficulty starting, a whining noise from the fuel tank area, hesitation or power loss under acceleration or load, or a fuel gauge that reads inaccurately or fluctuates on its own. Because the sending unit and pump are combined in this single module, a fuel gauge problem and a starting or performance problem can both point back to the same worn part, even though they seem like unrelated symptoms.

Why Replace the Complete Module Assembly

The electric pump, fuel sending unit, strainer, and pressure regulation components in this module are all built and calibrated together as one sealed unit, which is why replacing the complete assembly is the standard repair rather than attempting to service the pump motor on its own. Starting with a new, fully assembled module means the pump, sending unit, and seals are all fresh and properly matched, avoiding the leaks or inaccurate readings that can come from mixing new and worn components within the tank.

Installation Notes

Replacing this module means safely relieving fuel system pressure, accessing the tank through the trunk floor or by dropping the tank depending on your specific ML's design, disconnecting the electrical connector and fuel lines, and installing the new module with a fresh gasket before restoring pressure and checking for leaks. Because working around a fuel tank involves flammable fuel vapor, this job should be done in a well-ventilated space away from any ignition sources, with the negative battery terminal disconnected beforehand as an added precaution, and professional installation is recommended if you're not experienced with fuel system service.

Ordering Information

This fuel pump module is in stock and ships ready to install. Our Shipping Information page covers current timelines, and our Warranty and Returns pages explain what to do if anything isn't right on arrival. Not sure this matches your specific ML's trim and model year? Our Request a Part page is the fastest way to confirm before you order.

Related Parts

This fuel pump module is listed in our Mercedes-Benz collection, along with our Fuel System collection, where you'll find other fuel delivery components for the ML-Class.