Seat Leon Mk3 Fuel Tank Pump Sender Unit 1.5 TSI DADA 5WA919051BF

Visual condition of the part

The product shows signs of use visible in the photos.

Seat Leon Mk3 Fuel Tank Pump Sender Unit 1.5 TSI DADA is an original fuel supply system component, responsible for precise fuel delivery and measuring its level in the tank. As part of the Fuel pumps and level sensors group, it ensures stable engine operation and accurate readings on the instrument cluster. This used OEM component is a sensible choice for drivers looking for a proven solution at an attractive price.

Specifications and technical data

• SKU: 5WA919051A-2
• Mark: Seat
• Condition: Used
• OEM Part Number: 5WA919051A
• Substitutable numbers: 5WA919051A, 5WA 919 051 A, 5WA919051BF, 5WA 919 051 BF
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Function and role in the fuel supply system

The presented fuel pump with a level sensor operates inside the fuel tank, supporting the 1.5 TSI petrol engine. It is responsible for:

• pumping fuel at the correct pressure to the injection system,
• continuous monitoring of the petrol level in the tank,
• transmitting a signal to the instrument cluster, which allows the driver to monitor the range,
• stabilizing engine operation under various loads.

By integrating the pump and level sensor functions into a single module, the number of connections and potential failure points is reduced, which promotes trouble-free operation.

Compatibility and selection by parameters

The element has been designed to work with a petrol engine, so it is crucial to match it to the specific engine version and fuel tank configuration. When selecting, it is worth paying attention to:

• compatibility with the fuel type – in this case, petrol,
• OEM markings and available interchangeable numbers,
• type of injection system used.

Selection by part number and technical parameters minimizes the risk of installation problems and ensures proper cooperation with the vehicle's electronics.

Condition, origin, and advantages of purchasing a used module

The offered module comes from the Seat brand and is a used item, which allows for a significant reduction in repair costs compared to a brand-new part. At the same time, the geometry, build quality, and compatibility with the factory electrical and fuel installation characteristic of OEM components are maintained.

A used fuel pump with a level sensor is a good solution in situations where:

• the existing module has suffered mechanical or electrical damage,
• there are incorrect fuel level readings on the dashboard,
• the engine has problems starting or maintaining steady idle speed due to insufficient fuel supply.

Benefits of using an original fuel pump with a sensor

Using an original fuel pump and level sensor module in a Seat Leon Mk3 translates into a number of practical benefits:

• Factory fit – the correct length of the float arm and the geometry of the pump basket ensure accurate fuel level readings.
• Stable engine power supply – the properly selected pump capacity supports the smooth operation of the 1.5 TSI unit across the full load range.
• Trouble-free installation – the design intended for the stock fuel tank limits the need for installation modifications.

For users who want to better understand the specifics of used components, including sensors and modules that work with vehicle electronics, the Global Parts guide will be helpful: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.

Expansion of the fuel supply system in the Seat brand

If you are planning a comprehensive repair or upgrade of the fuel supply area in your Seat and need other elements from the same group, such as additional pump modules, level sensors, or complete fuel basket assemblies, check the available parts in the Seat fuel pumps and level sensors category.