Fuel Pump BMW F20 F21 F30 F31 Petrol N13 Delivery Sender Unit 7243974

The BMW F20 F21 F30 F31 Petrol N13 Fuel Pump is an original part from the Fuel Pumps and Level Sensors group, designed for N13 petrol engines in popular BMW 1 and 3 Series models. It ensures stable fuel supply to the powertrain, which translates to proper injector system operation, smooth engine running, and predictable performance.

Specifications and technical data

• SKU: 7243974
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7243974
• Substitutable numbers: 16117243974, 7243974, 16117297777, 16117414480, 7297777, 7414480
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Intended Use and Role in the Fuel System

The presented fuel pump is designed to work with the N13 petrol engine, used in the compact BMW F20/F21 and F30/F31 models. It is responsible for delivering fuel at the correct pressure from the tank to other system components, which is crucial for proper injector operation, stable starting, and maintaining the correct fuel-air mixture.

Thanks to its construction that meets manufacturer requirements, the pump works with the vehicle's factory electronics, maintaining the parameters intended for the N13 unit powered by petrol fuel. This solution helps reduce the risk of starting problems, power drops, or uneven idling.

Compatibility and Technical Specifications

The pump belongs to the group of original BMW components, meaning it adheres to factory manufacturing and fitment standards. The part has a dedicated OEM part number and associated replacement numbers, allowing for precise selection by part number or vehicle VIN. This identification minimizes the risk of purchasing an incorrect variant and facilitates integration with the existing fuel system.

The presence of reference numbers also allows for easier verification of compatibility in service catalogs and diagnostic software, which is particularly important when working with modern petrol engines like the N13.

Condition, Verification, and Practical Application

The offered fuel pump is a used part, making it an attractive solution for users looking for parts within a reasonable budget while maintaining the original manufacturer's specifications. This type of component is particularly useful for:

• resolving issues with power loss or engine stalling under load,
• addressing starting difficulties with a warm or cold engine,
• diagnosing faults related to incorrect fuel pressure in the system.

Replacing the fuel pump in an N13 engine is recommended after confirming the diagnosis, for example, by measuring fuel pressure or reading error codes from the control unit. Using a part that complies with factory requirements helps restore the powertrain's correct operating parameters without the need for costly intervention in other system components.

Benefits of Using an Original Fuel Pump

Using an original fuel pump in BMW F20, F21, F30, and F31 models with the N13 engine offers a range of practical benefits:

• Factory Fitment – maintains original geometry, connections, and operating parameters, facilitating installation and integration with the fuel system.
• Stable Engine Supply – correct fuel pressure supports smooth engine operation, reduces the risk of jerking, and improves throttle response.
• Operational Safety – a properly functioning pump reduces the risk of a lean fuel mixture, which is important for the longevity of the engine and fuel injection system components.

For users who want to better understand the operation of the entire fuel system, selecting parts by OEM number, and diagnostic principles, the article will be helpful: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair.

Expanding BMW Fuel System Service

If you are planning a comprehensive repair or upgrade of the fuel system area in your BMW and need other parts from the same group, such as feed pumps, pump modules, or fuel level sensors, check the available parts in the BMW Fuel Pumps and Level Sensors category.

When planning more extensive service work on your car, it is also worth familiarizing yourself with practical tips regarding the most frequently replaced components – the guide: TOP 10 Most Frequently Replaced Parts in Your Car, which helps in optimally planning your vehicle's running costs, may be useful.