BMW E90 E91 LCI F10 F11 Fuel Injector Bracket Mount Set 325d 330d 525d 530d N57

BMW E90 E91 LCI F10 Injector Mounting Bolt Kit 325D 330D 525D 530D N57 is a set designed for the injection system of BMW diesel engines, allowing for proper and stable mounting of injectors in the cylinder head. The kit provides a good service base for work related to the removal and reinstallation of injectors in Diesel engines.

Specifications and technical data

• SKU: 7797881-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7797881
• Substitutable numbers: 13538578607, 8578607, 13537797881, 7797881
• Fuel type: Diesel
• Category: Fuel Injectors

Intended Use and Application in BMW Diesel Engines

The injector mounting bolt kit is dedicated to BMW N57 family engines used in 3 and 5 Series models, such as the 325d, 330d, 525d, and 530d versions. These components work with the Diesel injection system, ensuring proper injector seating in its bore and maintaining combustion chamber seal.

Correct injector mounting is crucial for:

• stable operation of the injection system under various engine loads,
• maintaining correct injection pressure and precise fuel delivery,
• reducing the risk of exhaust gas blow-by around the injector bores.

Technical Characteristics and Role in the Injection System

Mounting bolts for injectors in BMW diesel engines are responsible for axially pressing the injector into its bore in the cylinder head. A correctly selected kit allows for maintaining:

• appropriate clamping force in accordance with the manufacturer's design specifications,
• stable injector position relative to the combustion chamber,
• repeatability of operating parameters for individual cylinders.

Replacing mounting bolts is particularly recommended every time injectors are removed to avoid thread issues, loss of clamping force, or uneven stress on the bores.

Benefits of Using a Complete Kit

Using a complete set of injector mounting bolts in BMW N57 engines offers a range of practical service benefits:

• consistency of mounting elements – all bolts come from a single kit, facilitating installation and inspection,
• streamlined service work – the mechanic has a complete set readily available, eliminating the need to select individual components,
• reduced risk of leaks resulting from the reuse of worn bolts,
• better repeatability of tightening torque due to the uniform condition of the mounting elements.

A kit prepared in this way is particularly useful for comprehensive work related to the regeneration or replacement of injectors in BMW diesel engines.

Product Condition and Application in Service Practice

The injector mounting bolt kit is suitable for use in both professional BMW specialist workshops and independent garages servicing diesel engines. The set is appropriate for:

• injector removal for diagnostics or cleaning,
• regeneration of the injection system in Diesel engines,
• preparing the engine for further operation after cylinder head repairs.

By using the original mounting geometry, it is possible to maintain factory injection system operating parameters, which translates to engine smoothness and stable performance.

BMW Injector Nozzles – Related Offer and Technical Knowledge

If you are looking for other components in the BMW injector nozzles category, check out our dedicated offer: BMW injector nozzles. There you will find a wide selection of components for this brand's diesel engine injection systems.

When working on the injection system, it is useful to know the typical symptoms of wear and failure. Detailed information on symptoms, consequences, and diagnostic methods can be found in the article: Diesel Injector Faults – How to Recognize Them and What Neglecting Them Entails. This is a practical addition to your knowledge when planning repairs and inspections of injectors in BMW Diesel engines.