BMW F15 F25 F30 F31 28dX N47N USA Injector Fuel Pump Injection System Set

The BMW F15 F25 F30 F31 28Dx N47N USA Fuel Pump Injector Set is a complete high-pressure diesel fuel supply system designed for BMW F-series diesel engines with the N47N 28Dx unit for the USA market. The set includes injector nozzle components along with the fuel pump, allowing for a cohesive upgrade or replacement of the entire injection system.

Specifications and technical data

• SKU: 8506548
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8506548
• Substitutable numbers: 8506548, 13538506548, 7800601, 7810696, 0445010517, 0 445 010 517, 0 445 214 135, 0445214135, 780060103, 7 800 601 03, 781078902, 782340803, 0928402190
• Fuel type: Diesel
• Tire profile: 65535
• Category: Fuel Injectors

Purpose and Characteristics of the BMW Injection System

The presented fuel pump injector set for BMW F15, F25, F30, F31 28Dx N47N USA is designed to work with high-pressure diesel engines where precise diesel fuel metering is crucial. Integrating injector nozzles with the high-pressure pump ensures consistent operating parameters for the entire system, facilitating diagnostics and subsequent engine control unit calibration.

The injection system in these units is responsible for:

• stable fuel pressure in the common rail across the full load range,
• accurate fuel spray formation by the injector nozzles, influencing engine smoothness and dynamics,
• combustion control in terms of exhaust emissions and fuel consumption.

Benefits of Using a Complete Injector Set

Using a complete fuel pump injector set in a BMW N47N diesel engine allows for the simultaneous restoration of correct operating parameters for several key components. In practice, this means:

• increased fuel delivery repeatability between cylinders, leading to smooth engine operation,
• better throttle response due to correct common rail system pressure,
• reduced risk of overheating and excessive smoking resulting from improper diesel fuel atomization,
• more predictable engine behavior under high load conditions and highway driving.

This is particularly important in BMW F-series SUVs and sedans, where good dynamics, comfort, and reasonable fuel consumption are expected.

Component Condition and Installation Aspects

The set is from a dismantled vehicle, allowing for an economical restoration of the injection system's functionality while maintaining the original manufacturer's specifications. The BMW injector nozzle components, along with the fuel pump, form the basis for further diagnostics and potential adaptation in the vehicle, in accordance with the service procedures for the N47N engine.

Before installation, it is recommended to:

• check the fuel system for leaks and the condition of high-pressure lines,
• thoroughly bleed the system after installing the pump and injectors,
• perform adaptation and correction quantity tests using an appropriate diagnostic tester.

Why Choose an Original BMW Injection System

Original BMW injection components are designed for long-term operation in the demanding conditions of a diesel engine. By choosing a fuel pump injector set dedicated to BMW F15, F25, F30, F31 28Dx N47N, you gain:

• compatibility with the engine's factory operating characteristics – without the need for ECU software modifications,
• consistency of injection parameters with other fuel system components,
• easier future diagnostics by maintaining the original system architecture.

If you want to better understand how injection problems manifest in diesel engines, the article: Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails, will be helpful, discussing typical symptoms and diagnostic methods.

Expansion of BMW Injector Nozzle Offer

For users looking for other BMW injector nozzles for various models of this brand, a dedicated category has been prepared. Check the available BMW injector nozzles to select components that best match the specific engine version and vehicle year.