BMW E90 E92 F10 N54 N63 335i 550i Fuel Injection Injector Nozzle 7565138

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E90 E92 F10 N54 N63 335i 550i Fuel Injection Injector Nozzle is an original fuel system component from the Injector Nozzles group, designed for modern BMW gasoline engines with direct injection. This used OEM injector ensures factory-fit, correct operating parameters, and stable engine performance, which translates into efficient power delivery and predictable fuel consumption.

Specifications and technical data

• SKU: 8616079-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8616079
• Substitutable numbers: 13538616079, 8616079, 13537625714, 7625714, 13537537317, 7537317, 13537585261, 7585261, 13537565138, 7565138, 13538648937, 8648937
• Category: Fuel Injectors

Purpose and compatibility

The presented injector is dedicated to BMW engines from the N54 and N63 families, installed in models such as the 3 Series E90/E92 and 5 Series F10 in 335i and 550i versions. Using an original injector nozzle allows for maintaining compatibility with factory engine control strategies, injection maps, and ignition systems, which is particularly important in high-power-density turbocharged units.

Technical characteristics and role in the fuel system

The injector is responsible for precise fuel dosing directly into the combustion chamber, while maintaining the correct pressure, opening time, and spray pattern. In N54 and N63 engines, a properly functioning injector nozzle is crucial for:

• maintaining a stable idle and smooth operation of all cylinders,
• proper cold and warm starts,
• reducing engine knocking and overheating of the combustion chamber,
• maintaining the correct air-fuel mixture under high load and boost.

Using an original element from the Injector Nozzles group minimizes the risk of engine control unit adaptation issues and reduces the need for additional calibration.

Condition, origin, and benefits of choosing OEM parts

The offered injector is a used item, sourced from the dismantling of an original BMW installation. Choosing OEM parts in this area has several significant advantages:

• factory spray geometry and compatibility with high-pressure pump operating parameters,
• reliable fitment to the cylinder head seat and existing wiring harness,
• preservation of original injection characteristics, which facilitates future diagnostics and service.

For direct-injection gasoline engines, using the correct injector has a direct impact on the durability of pistons, valves, and turbochargers, which is why choosing an original component is a technically safe and predictable solution.

Installation and maintenance tips

When replacing an injector in N54/N63 units, it is recommended to follow the manufacturer's procedures, including the use of new seals, proper preparation of the cylinder head seat, and subsequent adaptation of parameters in the engine control unit, if required by the specific system. A correctly installed injector nozzle reduces the risk of leaks, exhaust blow-by into the seat, and local overheating, which is important for the long-term, stable operation of the powertrain.

To better understand the symptoms of wear and improper injector operation, it is worth checking out educational material describing symptoms, consequences, and diagnostic methods – this is discussed in detail in the article Diesel injector faults – how to recognize them and the risks of neglecting them, the conclusions of which also apply to the general principles of fuel injection system operation.

Expanding the BMW fuel system

If you are planning a comprehensive repair or upgrade of your BMW engine area and need other elements from the same group, such as additional injectors, nozzles, or accompanying fuel system components, check out the available parts in the BMW Injector Nozzles category.

Summary

BMW E90 E92 F10 N54 N63 335i 550i Fuel Injection Injector Nozzle is a sensible choice for users looking for an original, used fuel system component that ensures compliance with BMW factory specifications. Using this component helps restore proper engine operation, reduce the risk of further faults, and maintain engine parameters at the level intended by the manufacturer.