Fuel Pump BMW F20 E88 F30 F12 N55 Petrol Engine High Pressure Injection 8604231

Fuel Pump BMW F20 E88 F30 F12 N55 Petrol Engine High Pressure Injection is an original component from the High-pressure fuel pumps category, designed for BMW petrol engines with the N55 unit. This used high-pressure pump allows for an economical yet technically sound repair of the fuel supply system, maintaining the factory engine performance parameters.

Specifications and technical data

• SKU: 8604231
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8604231
• Substitutable numbers: 8604231, 13518604231
• Fuel type: Petrol
• Category: High Pressure Fuel Pumps

Purpose and role in the fuel system

The presented high-pressure pump is a component of the petrol injection system in the N55 engine, used in, among others, the BMW F20, E88, F30, and F12 series. It is responsible for generating sufficiently high fuel pressure in the fuel rail, which enables precise fuel dosing by the direct injectors. By maintaining the original BMW design, the pump works seamlessly with the factory engine control unit and other fuel system components.

Benefits of using an original BMW pump

Using an original high-pressure injection pump in the N55 engine ensures:

• consistency with the factory performance characteristics of the engine,
• correct operating pressure across the entire load range,
• stable operation at idle and under load,
• proper cooperation with injectors and fuel pressure sensors.

For the user, this means more predictable vehicle behavior, a reduction in the risk of engine control unit errors, and the possibility of effective diagnostics based on factory service procedures. Choosing an original component is particularly important in modern direct-injection petrol units, where operating tolerances are very narrow.

Technical characteristics and compatibility

The pump belongs to the High-pressure fuel pumps category and is intended for petrol-powered engines. The design is adapted to the specifics of the N55 unit, where fuel is delivered directly into the combustion chamber. The appropriate operating parameters of the pump allow for maintaining the correct fuel pressure both during calm driving and dynamic acceleration.

Thanks to the use of an original BMW solution, the pump is prepared to work with factory fuel lines, the fuel rail, and the control system. This facilitates installation and limits the need for additional modifications, which is important both in professional service centers and independent workshops.

Product condition and service application

The offered pump is a used component, which allows for lower repair costs while maintaining the manufacturer's original specifications. This type of solution is often chosen for:

• fuel system repairs following a high-pressure pump failure,
• resolving issues with uneven engine operation or power loss resulting from improper fuel pressure,
• comprehensive maintenance of the injection system in BMW petrol engines.

Before installation, it is recommended to perform a standard check of the fuel system, including the condition of filters, lines, and injectors, to ensure the longest and most stable operation of the entire system.

Technical support and part selection

The component features OEM markings and interchangeable numbers, which facilitates clear identification and selection for a specific vehicle configuration. When matching the pump, it is worth using data from the vehicle's identification plate and BMW service documentation to avoid installation errors and ensure full compatibility with the given N55 engine version.

If you are planning a comprehensive repair or upgrade of the fuel supply system in your BMW and need other components from the same group, such as additional pumps, control elements, or supply lines, check the available parts in the BMW High-pressure fuel pumps category.

To deepen your knowledge regarding the diagnostics and operation of the fuel supply system in modern petrol engines, it is worth reading the article "Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration", which discusses, among other things, the principles of selecting parts by OEM numbers and typical symptoms of high-pressure pump wear.