Mini Cooper D R55 R56 W16 Fuel Injector 13537804978 7804978 328480

The MINI D R55 R56 W16 Injector is an original injector nozzle from the Mini group, designed for diesel engines used in R55 and R56 series models. This part comes from a dismantled vehicle, allowing for an economical yet technically sound repair of your Mini's fuel system.

Specifications and technical data

• SKU: 7804978
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7804978
• Substitutable numbers: 328480, 13537804978, 7804978, 0445110259, 0445110 259, PK
• Category: Fuel Injectors

Technical Characteristics of the MINI D R55 R56 W16 Injector

The injector nozzle with this reference belongs to the factory common rail injection system used in Mini diesel units. The injection design ensures precise fuel delivery under high pressure, which translates to stable engine operation, smooth running, and maintenance of factory combustion parameters.

Original manufacturing in accordance with Mini standards promotes the correct fuel spray pattern, which is crucial for efficient combustion chamber filling, reduced smoke, and maintaining proper fuel consumption. The injector is suitable as a replacement for the factory component in vehicles equipped with this family of parts.

Intended Use and Compatibility

The presented injector is intended for Mini cars with D series diesel engines, specifically for R55 and R56 body styles. By using the appropriate reference numbers, the part can replace several factory injector variants used in this generation of powertrains.

When selecting an injector for a specific vehicle, consider:

• compatibility with the engine designation used in your Mini,
• comparing reference numbers with the information in the product's technical specifications,
• verifying the type of injection system (common rail) in the specific model.

This selection method ensures trouble-free installation and full functionality of the fuel supply system.

Condition, Origin, and Service Application

The injector is categorized under Injector Nozzles and originates from a dismantled Mini vehicle. This solution is often chosen by professional workshops and discerning users seeking original parts at a reasonable price while maintaining correct operating parameters.

This type of component is suitable for the following applications:

• repair of a single cylinder in case of damage to one injector,
• partial regeneration of the injection system when replacing selected components,
• comparative diagnostics – swapping an injector to confirm a fault.

By adhering to OEM standards, the injector allows for the maintenance of the engine's original operating characteristics without the need for structural adaptations.

Benefits of Using an Original Mini Injector Nozzle

Choosing an original Mini injector nozzle offers a range of practical service and operational benefits:

• factory fit for cylinder head and common rail – no mechanical installation issues,
• maintaining predictable engine behavior under load and at idle,
• reducing the risk of improper fuel atomization, which can lead to smoke, power loss, or accelerated engine wear,
• easier computer diagnostics – the engine control unit works with an injector that matches the factory specifications.

A component selected in this way is particularly recommended for repairs where maintaining the original performance parameters of the Mini powertrain is a priority.

Diagnostics and Operation of the Injection System

When replacing an injector, it is advisable to pay attention to symptoms typical of wear or damage to such components, such as uneven idling, power loss, increased fuel consumption, or smoke under load. It is good practice to combine replacement with checking engine operating parameters using a diagnostic tester and verifying the fuel system's tightness.

If you want to better understand how to identify injector problems and the consequences of neglecting them, read the article: Diesel Injector Faults – How to Identify Them and What Are the Consequences of Neglecting Them. This provides practical knowledge for planning your Mini's injection system repair.

If you are looking for other Mini injector nozzles for similar service applications, check out our dedicated offer: Mini injector nozzles. This will allow you to easily compare available variants and select the part that best suits your model.