VW Volkswagen Polo 6R 1.4 TDI CUSA Tank Fuel Sender Pump Unit 6R0919050AH

Fuel pump with level sensor for VW Polo 6R 1.4 TDI CUSA is an original part from the Fuel pumps and level sensors group, designed for diesel engines. It ensures stable supply of the injection system with diesel fuel and precise fuel level reading, which translates into safe and predictable car operation.

Specifications and technical data

• SKU: 6R0919050AH
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 6R0919050AH
• Substitutable numbers: 6R0919050AH, 6R0 919 050 AH
• Fuel type: Diesel
• Category: Fuel Pumps & Sending Units

Purpose and function in the fuel system

The offered pumping and measuring unit is designed specifically for cooperation with the 1.4 TDI CUSA engine in the Volkswagen Polo generation 6R model. This assembly is responsible for both pumping fuel from the tank and for continuous measurement of the diesel fuel level, which is transmitted to the dashboard display.

A correctly functioning fuel pump integrated with a level sensor is crucial for:

• maintaining the correct supply pressure for the injection system,
• stable operation of the diesel engine across the full range of loads,
• reliable fuel level indication, which facilitates refueling planning,
• reducing the risk of air entering the system at low fuel levels.

Construction of the pump and level sensor assembly

The presented element is a complete module installed in the fuel tank, combining several functions in one housing. In a typical configuration, it includes:

• an electric fuel pump adapted for operation with Diesel fuel,
• a float assembly responsible for fuel level measurement,
• internal channels and connectors for supplying fuel to the supply lines,
• an electrical connector for communication with the vehicle's electrical system.

This design allows for quick removal and installation of the entire module in the tank, which reduces service time and facilitates diagnostics of potential faults in the supply system.

Benefits of using an original VW module

Using an original solution dedicated to the Polo 6R 1.4 TDI CUSA ensures:

• precise geometric fit to the fuel tank and mounting basket,
• correct cooperation with the factory electrical system and engine control unit,
• appropriate pump performance characteristics for the diesel engine,
• compliance with the factory fuel gauge scale on the instrument cluster.

This reduces the risk of problems typical for aftermarket parts, such as incorrect fuel level readings, too low supply pressure, or the need for wiring harness modifications.

Condition of the part and service application

The module comes from an operated vehicle and is offered as a used part, which is a cost-effective solution for fuel system repairs in older Polo 6R models. This type of part is particularly useful in situations where symptoms such as:

• starting problems after a long standstill,
• uneven engine operation at low fuel levels,
• no indication or jumping fuel level gauge,
• recorded supply system errors in the control unit memory.

Selection by OEM number and by model and engine version allows for safe replacement without interfering with the tank structure or fuel system.

Technical support and selection by numbers

If you have doubts about compatibility with a specific version of the Polo 6R, it is advisable to use the OEM part number or interchangeable numbers, as well as data from the registration certificate. A detailed discussion of the fuel system's operation, diagnostics, and component selection can be found in the article: Fuel system – injectors, pumps, and fuel tank: maintenance and repair.

If you are planning a comprehensive repair or upgrade of the fuel supply system in your Volkswagen and need other parts from the same group, such as pumping modules, level sensors, or complete in-tank basket assemblies, check the available parts in the category Fuel pumps and level sensors Volkswagen.