The Audi S4 B6 B7 4.2 V8 Fuel Injector Injector Nozzle is an original fuel system component designed for diesel engines, engineered by the manufacturer for stable engine operation. Precisely selected fuel atomization parameters contribute to uniform cylinder operation, proper running culture, and predictable vehicle performance.
Specifications and technical data
- SKU: 079133551B
- Mark: Audi
- Condition: Used
- OEM Part Number: 079133551B
- Substitutable numbers: 079133551B, 079 133 551 B
- Fuel type: Diesel
- Category: Fuel Injectors
Audi Injector Technical Characteristics
The Audi injector nozzle offered here belongs to the category of specialized fuel system components for diesel engines. The injector's design is adapted for V8 units, where precise fuel delivery to each cylinder is crucial to maintain appropriate torque and stable combustion.
The injector is designed for diesel fuel, meaning it has appropriate material resistance to the high pressures and temperatures found in modern injection systems. The implemented design solutions allow for the achievement of the correct fuel spray pattern, which translates to efficient combustion chamber filling.
Intended Use and Compatibility
The presented Audi injector nozzle is dedicated for use in S4 models of the B6 and B7 generations, equipped with the 4.2 V8 engine. Proper matching of geometry and operating parameters to the specific engine helps maintain factory power and torque characteristics, as well as reduce the risk of incorrect mixture combustion.
The component comes from the Audi product line, ensuring compliance with the manufacturer's factory standards regarding build quality, dimensional tolerances, and operating parameters. This allows the injector to be used as a replacement for the factory-fitted part, without the need for fuel system modifications.
Condition, Service Application, and Benefits of Installation
The offered injector is a used aftermarket part, providing an attractive service solution for users seeking a technically compatible component at a reasonable price. This type of component is particularly useful for:
- diagnosing and resolving engine running issues related to rough idling or power loss,
- restoring correct fuel delivery after detecting wear in one of the injectors,
- servicing the fuel system in vehicles operated under demanding conditions.
Selecting the correct injector directly impacts engine performance, fuel consumption, and exhaust emissions. Using a component that meets manufacturer requirements helps reduce the risk of further malfunctions, such as excessive smoke, combustion chamber overheating, or accelerated wear of pistons and valves.
Diesel Injector Diagnostics and Operation
For diesel engines, regular inspection of injector condition is crucial for maintaining stable engine operation. Symptoms such as starting difficulties, increased fuel consumption, loss of acceleration, or characteristic knocking may indicate the need for fuel system verification. It is worth familiarizing yourself with practical tips found in the article Diesel Injector Failures – How to Recognize Them and What Their Neglect Entails to better assess when to replace or repair components.
Audi Injector Nozzles – Part Selection
If you also need other Audi injector nozzles for your vehicle, check availability in the dedicated category: Audi injector nozzles. Focusing on parts specifically designed for this brand makes it easier to select parts that comply with manufacturer requirements and reduces the risk of installation problems.
