Fuel Injector BMW E60 E81 E82 E87 LCI E88 E90 E91 E92 E93 Petrol N43 4548853

BMW E81 E87 LCI E90 E91 E92 injector is an original gasoline fuel system component, designed for precise fuel delivery in BMW 1 and 3 Series engines. A used injector from the Injector Nozzles category allows for an economical yet technically correct repair or replacement of a single component of the injection system.

Specifications and technical data

• SKU: 4548853
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 4548853
• Substitutable numbers: 13537589048, 7589048, 13534548853, 4548853, 13537625713, 7625713, 13537565137, 13537584681, 7565137, 7584681
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Technical Characteristics

The presented gasoline injector is a component of the fuel supply system in BMW engines that utilize precise, electronically controlled injector nozzles. It is responsible for accurate gasoline atomization in the combustion chamber, which is crucial for stable engine operation, smooth idling, and proper acceleration dynamics.

The injector works in conjunction with the engine control system, which determines the nozzle opening time based on sensor data. This enables the maintenance of the correct fuel-air mixture, reduced fuel consumption, and exhaust emissions within the limits specified for the particular engine generation.

Application in BMW Models

The BMW E81 E87 LCI E90 E91 E92 injector is designed for selected gasoline-powered versions of the BMW 1 Series (E81, E87, including LCI facelifted versions) and 3 Series (E90, E91, E92). Using an original injector nozzle allows for the preservation of factory engine operating parameters, including:

• stable fuel delivery across the entire RPM range,
• proper throttle response without jerking or fuel supply interruptions,
• maintained even cylinder operation, which reduces vibrations and the risk of uneven compression in the long term.

By adhering to the original design specifications, installing this injector does not require modifications to the fuel or electrical system, provided that the part selection is based on correct catalog data.

Benefits of Using an Original Injector Nozzle

Choosing an original BMW gasoline injector offers a range of practical benefits for everyday vehicle operation:

• Restoration of Factory Fuel Consumption Parameters – proper fuel atomization promotes even combustion in each cylinder.
• Improved Engine Smoothness – reduced misfires, idle fluctuations, and starting issues on warm or cold engines.
• Potential Reduction in Fuel Consumption – a functional injector minimizes the risk of excessive mixture enrichment.
• Protection of Associated Components – correct fuel metering reduces the load on the catalytic converter, lambda sensors, and ignition system.

When replacing a single injector nozzle, it is advisable to diagnose the entire fuel system to confirm that other components are operating within acceptable ranges and are not imposing additional stress on the newly installed part.

Condition, Verification, and Part Selection

The offered injector is a used part obtained from disassembly. This type of component is an attractive cost-effective solution, especially for repairs on older BMW E81, E87, E90, E91, and E92 models where restoring functionality within a reasonable service budget is a priority.

Before purchasing, it is recommended to:

• verify compatibility using the OEM part number and interchangeable numbers in the technical specifications,
• compare the design of the removed injector with the offered part (connector shape, mounting method, socket diameter),
• check the fuel type – this injector is designed for gasoline systems.

Correct injector nozzle selection minimizes the risk of installation problems and improper engine operation after replacement.

Related BMW Injector Nozzles and Guide Materials

If you are looking for other BMW injector nozzles for your model, check out the BMW injector nozzles available in our assortment to select a part that perfectly matches your specific engine version.

Although the described part pertains to gasoline systems, many principles of diagnosis and symptoms of injector malfunctions are similar to those found in diesel engines. It is worth familiarizing yourself with a guide that discusses the symptoms and consequences of neglecting this area: diesel injector faults – symptoms, consequences, and diagnostics. This will help you better understand the importance of functional injectors for the longevity of the entire engine.