BMW MINI Cooper S R52 R53 Fuel Injector Petrol Injection Valve 1521390

MINI S R52 R53 Gasoline Fuel Injector is an original injector nozzle designed for MINI S series gasoline engines, ideal for professional repairs or restoring the engine unit to its factory operating parameters. The component comes from the OEM line of the Mini brand, ensuring proper fitment within the fuel system and correct compatibility with the factory engine electronics.

Specifications and technical data

• SKU: 1521390
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 1521390
• Substitutable numbers: 13537572995, 7572995, 13531521390, 1521390
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Technical Characteristics

The MINI S R52 R53 gasoline fuel injector belongs to the injector nozzles category and is designed for use in spark-ignition engine fuel systems. The OEM construction guarantees the correct fuel spray pattern, stable dosing, and compatibility with the operating pressure specified by the manufacturer.

The component is intended for engines powered by gasoline, meaning appropriately selected flow rates, resistance to typical fuel additives, and correct interaction with the injection maps in the engine control unit. This allows for maintaining the correct mixture composition, which translates to smooth operation, performance, and emissions.

Benefits of Using an Original Injector Nozzle

Using an original Mini injector nozzle in the R52/R53 S series models allows for maintaining the factory operating parameters of the engine unit. Compared to aftermarket alternatives, an OEM part ensures:

• precise fuel dosing – stable idle and under load operation, without undesirable RPM fluctuations,
• correct spray pattern – better fuel-air mixture, promoting efficient combustion,
• compatibility with the factory engine control unit – no need for software or installation modifications,
• preservation of the MINI S engine characteristics – predictable throttle response and consistent performance.

This solution is particularly recommended for professional repairs where maintaining the original engine operating characteristics and minimizing diagnostic issues are priorities.

Component Condition and Service Application

The offered injector nozzle is a used OEM component, which in practice means the possibility of an economical repair while maintaining the original manufacturer's specifications. This type of part is suitable for both replacing a single injector and for gradual refurbishment of the entire fuel system in MINI S R52/R53 vehicles.

Before installation, standard service procedures are recommended: checking the fuel system for leaks, verifying the condition of the injector seats, and checking operating parameters on a diagnostic tester after installation. This confirms the correct operation of the component in the specific vehicle instance.

Mini Injector Nozzles – Selection and Compatibility

When selecting an injector nozzle for the MINI S R52/R53, it is crucial to use the OEM part number and interchangeable numbers to ensure full compatibility with the specific engine version. If in doubt, it is advisable to compare the markings with the service documentation or the manufacturer's catalog, which minimizes the risk of installing an incorrect component.

If you need other components from the Mini injector nozzles category, please use the dedicated subpage: Mini injector nozzles. This will facilitate the search for compatible injectors for various engine versions of this brand.

Injector Diagnostics and Technical Knowledge

Although the presented component relates to a gasoline system, many injector diagnostic principles are common across different engine types. It is worthwhile to familiarize yourself with materials discussing typical wear symptoms, methods for verifying injector operation, and the consequences of neglect. An article describing diesel engine injection problems might be helpful: diesel injector faults – symptoms, consequences, and diagnostics. The information contained therein helps to understand the importance of the efficiency of components responsible for precise fuel delivery.

Summary

The MINI S R52 R53 Gasoline Fuel Injector is a sensible choice for owners and workshops aiming to maintain factory engine parameters while optimizing repair costs. An original Mini line injector nozzle ensures proper fitment, predictable engine unit behavior, and compatibility with the factory control system, which is crucial for the durability and reliability of the entire fuel system.