BMW X5 Series E53 M54 4.4i Fuel Injection Valve 1707843

The BMW E53 X5 M54 4.4i Fuel Injector is an original fuel system component from the injector nozzles category, designed for the M54 4.4i gasoline engine in the BMW X5 E53 model. This is a precise OEM component that restores correct fuel delivery, stable engine operation, and proper performance under load.

Specifications and technical data

• SKU: 1707843
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1707843
• Substitutable numbers: 13641707843, 1707843
• Category: Fuel Injectors

Technical Characteristics of the BMW E53 X5 M54 4.4i Injector

The presented fuel injector is an original BMW part, specifically designed to work with the M54 4.4i engine in the X5 E53 model. The design of the injector nozzle ensures the correct fuel spray pattern, which translates to even fuel mixture combustion in each cylinder. This allows the engine to maintain proper dynamics, and the throttle response remains predictable and repeatable.

The injector belongs to the injector nozzles category, meaning it is responsible for precisely dosing fuel at the correct pressure directly into the intake ports. A properly selected component of this type reduces the risk of uneven idling, power loss, or increased fuel consumption.

Benefits of Using an Original BMW Injector Nozzle

Using an original injector in the BMW X5 E53 M54 4.4i allows you to maintain the performance parameters intended by the vehicle manufacturer. Key benefits include:

• Stable Engine Operation – proper fuel atomization promotes even combustion in each cylinder.
• Improved Idling Quality – reduction of vibrations and misfires resulting from incorrect fuel dosing.
• Optimized Fuel Consumption – correct dosing reduces the risk of excessive fuel consumption in urban and non-urban conditions.
• Compatibility with the Factory Engine Control Unit – no need for ECU software modifications when replacing with an OEM part.

Condition, Fitment, and Application

The offered injector is a used part, sourced from disassembly, intended for reinstallation in the gasoline fuel system of the M54 4.4i engine. This type of component is particularly useful for:

• diagnosing and resolving issues with uneven engine operation,
• repairs after identifying damage to a single injector nozzle,
• comprehensive overhaul of the fuel system in the BMW X5 E53.

By maintaining the original manufacturer's specifications, installation is similar to factory standards – without the need for modifications to the fuel or electrical systems. This solution helps maintain the integrity of the entire powertrain and reduces the risk of compatibility issues.

Injector System Operation and Diagnostics

A functional injector has a direct impact on the safety and longevity of the engine. Symptoms such as difficulty starting a warm engine, jerking during acceleration, or a noticeable fuel smell in the exhaust may indicate the need to check the injector nozzles. If in doubt, it is advisable to seek expert advice – practical information on the symptoms and consequences of neglecting fuel system components can be found in the article Diesel Injector Failures – How to Recognize Them and What Neglecting Them Entails. Although it concerns diesel engines, the diagnostic principles and consequences of neglect described there are also helpful when analyzing the operation of the injector system in gasoline engines.

Other BMW Injector Nozzles

If you are also looking for other solutions from the same group, check out the BMW injector nozzles available in our assortment to select components tailored to the specific engine version and year of your vehicle.