Fuel Pump BMW F80 M3 F82 M4 S55 Petrol High Pressure Injection 7847204

The BMW F80 M3 F82 M4 S55 Fuel Pressure Pump is an original gasoline supply system component designed for sporty BMW models with the S55 engine. This used high-pressure pump serves as a functional replacement for the factory part, ensuring stable fuel supply to the engine during dynamic driving. It's a solution for users seeking a proven OEM component without the need to invest in a new part.

Specifications and technical data

• SKU: 7847204
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7847204
• Substitutable numbers: 7847204, 13517847204, 0261520255, 63217217309, 7217309
• Fuel type: Petrol
• Category: Fuel Pumps & Sending Units

Purpose and Role in the Fuel System

The presented pump belongs to the Fuel Pumps and Level Sensors category and is responsible for generating high gasoline pressure in the S55 engine's injection system. In BMW F80 M3 and F82 M4 units, stable fuel pressure is crucial for performance, precise mixture dosing, and correct engine management system operation.

This component works with the low-pressure part of the fuel system, delivering gasoline to the fuel rail at the appropriate high pressure. This enables:

• maintaining the correct mixture composition under high engine load,
• stable engine operation across the full RPM range,
• effective utilization of turbocharging potential.

Benefits of Using an Original BMW Pump

Choosing an original high-pressure pump for the BMW F80 M3 / F82 M4 allows you to maintain the factory parameters of the fuel system. The OEM design ensures:

• precise fit into the mounting points in the S55 engine,
• correct interaction with the factory engine control unit,
• preservation of the pressure characteristics specified by the manufacturer.

This reduces the risk of starting problems, misfires, or power loss resulting from improper fuel supply. A used OEM part is also an attractive cost-effective alternative to new parts, while maintaining the factory technical specification.

Technical Characteristics and Fuel

The pump is designed to operate in a gasoline engine fuel supply system. This means appropriate material resistance to gasoline and compliance with the pressure parameters required by the direct fuel injection in the S55 unit.

In practice, this translates to:

• stable operating pressure across the entire load range,
• correct interaction with gasoline injectors,
• the ability to utilize the engine's full potential under road and track conditions.

Application in Service and Modifications

The BMW F80 M3 F82 M4 S55 Fuel Pressure Pump is suitable for both standard replacement of worn-out parts and for projects where maintaining factory reliability with increased power is a priority. A used part helps reduce service costs while preserving the original fuel system design.

Before installation, standard fuel system diagnostics and verification of hose and connector tightness are recommended to fully utilize the pump's capabilities and avoid engine operational disturbances caused by other system components.

Selection, Reference Numbers, and Technical Support

The pump has a dedicated OEM part number and associated interchangeable numbers, which facilitates selecting the correct component for a specific BMW F80 M3 or F82 M4 configuration. When matching, it's advisable to use the manufacturer's designations or the vehicle's VIN to ensure full compatibility with the specific S55 engine version.

If you need a broader perspective on fuel system diagnostics and operation, the guide article will be helpful: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair. There you will find practical tips on assessing the condition of fuel pumps, their repair, and parts selection by OEM numbers.

Other BMW Fuel Pumps and Level Sensors

If you are also looking for other components from the BMW Fuel Pumps and Level Sensors category for your car, check out our dedicated offer: BMW Fuel Pumps and Level Sensors. This will allow you to easily assemble the entire set of fuel system components from a single brand.