Mini Cooper D R55 R56 W16 Fuel Injector 13537804978 7804978 328480

Mini Cooper D R55 R56 W16 Fuel Injector is a component from the Fuel Injector Nozzles category, designed for precise fuel metering in Mini diesel engines. This used OEM component ensures the correct operating parameters of the fuel injection system, which translates into stable engine performance and predictable power delivery. It is a solution for users looking for a technically matched injector while maintaining reasonable service costs.

Specifications and technical data

• SKU: 7804978
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7804978
• Substitutable numbers: 328480, 13537804978, 7804978, 0445110259, PK
• Category: Fuel Injectors

Purpose and role in the fuel injection system

The fuel injector in a Mini diesel engine is responsible for accurate fuel atomization in the combustion chamber, which has a direct impact on power, fuel consumption, and exhaust emissions. As a component from the Fuel Injector Nozzles group, it operates under high pressure, which is why its proper functioning is crucial for the smooth operation of all cylinders and for reducing engine vibration and noise.

Selecting an injector that complies with Mini's factory specifications allows you to maintain the parameters intended by the manufacturer without the need for adaptations or modifications to the fuel system.

Benefits of using an original Mini fuel injector nozzle

Using this injector in Mini D R55/R56 series models with the W16 engine provides a number of practical advantages:

• maintaining the factory engine performance characteristics during acceleration and at idle,
• reducing the risk of uneven engine operation resulting from inaccurate fuel metering,
• consistency with the factory engine control system and existing fuel installation,
• the ability to use existing diagnostic and adaptation procedures used in Mini service centers.

Thanks to this, injector replacement is predictable in terms of the final result, and the mechanic can rely on known system operating parameters.

Characteristics of the used component

The offered Mini injector comes from the secondary market, which allows for lower repair costs compared to a new OEM part. A used component of this class is a popular choice for:

• maintenance repairs in older Mini vehicles,
• restoring vehicle efficiency after a single-cylinder failure,
• budget optimization while maintaining compliance with the factory design.

Choosing a used injector is particularly beneficial when you want a technically matched component without the need to invest in a complete new set of injectors.

Selection and diagnostics of the fuel injection system

Before installing the injector in your Mini, it is worth performing a thorough diagnosis of the fuel system to confirm that the source of the problem is indeed the fuel injector nozzle, and not, for example, the high-pressure pump or the electrical installation. An article describing typical symptoms and the consequences of neglect will be helpful here – you can find detailed information in the material Diesel injector faults – how to recognize them and the risks of neglecting them.

When selecting parts, it is worth paying attention to compliance with manufacturer markings and reference numbers provided for the specific Mini engine – this helps avoid problems with starting and subsequent calibration.

Support for Mini fuel injection system upgrades

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

If you are considering a wider use of secondary market parts in your car and want to make an informed decision about which components are worth buying used and which are better to avoid, our blog guide may be helpful: Renovation and repair of German cars: which used parts are worth buying and which are better to avoid?.

Summary

Mini Cooper D R55 R56 W16 Fuel Injector is a practical solution for users who want to restore the proper operation of the fuel injection system while maintaining compliance with Mini's factory specifications. A used element from the Fuel Injector Nozzles group allows you to optimize service costs while maintaining the correct operating parameters of the diesel engine in daily use.