Fuel Pump Mercedes ML W166 GLE C292 Diesel OM651 OM642 Tank Pump A1664702994

Fuel Pump Mercedes ML W166 GLE C292 Diesel OM651 OM642 Tank Pump is an original component from the Fuel pumps and level sensors group, designed for diesel systems in Mercedes vehicles. It enables stable fuel supply to the engine, ensuring proper pressure and fuel flow throughout the entire system.

Specifications and technical data

• SKU: A1664702994
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1664702994
• Substitutable numbers: A1664702994, A 166 470 29 94
• Fuel type: Diesel
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The tank fuel pump in ML W166 and GLE C292 models with diesel engines is responsible for transporting fuel from the tank to the subsequent components of the supply system. It is a key component for the proper operation of the injection system, stable starting, and smooth engine performance across the full load range.

The original design, matched to the Mercedes architecture, allows for maintaining factory flow parameters, which is particularly important in modern diesel units sensitive to pressure drops and supply disruptions.

Benefits of using an original tank pump

Using a dedicated diesel fuel pump for this model ensures:

• proper cooperation with the injection system and vehicle electronics,
• stable fuel supply during cold starts and under load,
• maintenance of factory engine performance characteristics,
• reduced risk of system aeration and power drops.

Thanks to the fitment for the specific Mercedes platform, installation is predictable, and the fuel system operating parameters remain consistent with the manufacturer's specifications, which promotes smooth engine operation and correct diagnostics.

Condition, origin, and fitment

The item comes from a Mercedes vehicle and is classified in the Fuel pumps and level sensors group. As a used part, it represents an attractive cost-effective solution while maintaining the original design specification. Before installation, it is recommended to perform a standard check of tightness, connectors, and the electrical condition of the plugs in accordance with the service procedure.

For proper selection for a specific engine version and model year, it is worth verifying compatibility by OEM number or the vehicle's VIN in the manufacturer's catalog or service documentation.

Installation and operational tips

When replacing the tank fuel pump in a diesel system, it is recommended to:

• work in a clean environment to avoid contamination in the tank,
• check the condition of the fuel basket and seals,
• inspect the wiring harness and connectors for corrosion and overheating,
• bleed the system after installation in accordance with the procedure for the given model.

This approach reduces the risk of repeated interventions in the fuel system and allows you to fully utilize the potential of the installed pump.

Fuel system expansion and technical knowledge

If you are planning a comprehensive repair or modernization of the fuel system area in your Mercedes and need other elements from the same group, such as additional pumps, supply modules, or level sensors, check the available parts in the Mercedes Fuel pumps and level sensors category.

To better understand the relationships between the tank pump, injectors, and fuel tank, and to select components by OEM or VIN number, it is worth using the advice contained in the article "Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration", where diagnostics, operation, and the most common power supply problems are discussed.

Summary

Fuel Pump Mercedes ML W166 GLE C292 Diesel OM651 OM642 Tank Pump is an original supply system component designed for diesel engines, allowing for the restoration of correct fuel system operating parameters. Choosing this pump is a technically justified solution for users who expect compliance with the factory Mercedes specification and predictable vehicle behavior after repair.