BMW X5 E70 LCI F10 Engine Cylinder Head 535d 740d 40dX N57S Diesel 7807641

BMW X5 E70 LCI F10 Engine Cylinder Head 535d 740d 40dX N57S Diesel is an original component from the Cylinder Heads group, designed for BMW N57S family diesel engines. This used, factory-spec cylinder head provides a solid foundation for professional engine repair, ensuring the maintenance of proper engine performance characteristics and compatibility with original factory components.

Specifications and technical data

• SKU: 7807641
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7807641
• Substitutable numbers: 7807641, 11127807641
• Fuel type: Diesel
• Part type: Cylinder Head
• Category: Cylinder Heads

Purpose and compatibility

The presented cylinder head is dedicated to Diesel engines used in high-end BMW models, such as the X5 E70 LCI and F10 with 535d, 740d, and 40dX units from the N57S family. Using an original component from the same design group allows for the maintenance of correct combustion system parameters, chamber tightness, and proper intake and exhaust port flow. Choosing a cylinder head from this series is particularly important when repairing high-power and high-torque engines, where precision and compliance with factory specifications have a direct impact on the durability of the power unit.

Technical characteristics of the cylinder head

The N57S family cylinder head has been designed for operation in modern BMW diesel engines, with an emphasis on efficient cooling, thermal stability, and proper air-fuel mixture guidance. The design includes integrated channels for coolant and oil, which enables even heat dissipation from the combustion chamber area. The solutions applied in this cylinder head support precise control of the combustion process, which translates into engine refinement, flexibility, and the ability to maintain correct exhaust emission parameters. Using an original cylinder head from this series also facilitates the correct assembly of the timing system and engine accessories.

Benefits of using an original BMW cylinder head

• Factory port geometry – maintaining proper airflow and exhaust gas flow, which promotes stable engine operation.
• Full compatibility with the N57S unit – no need for adaptations or structural modifications during installation.
• Consistency with other system components – easier assembly of valves, guides, camshafts, and accessories.
• Suitable base for regeneration – the possibility of performing professional machining work in accordance with the manufacturer's technology. Thanks to the use of an original cylinder head from the BMW group, it is possible to restore the original performance parameters of the power unit, which is significant both in daily operation and during intensive vehicle use.

Condition, preparation, and practical application

The offered cylinder head comes from the used BMW parts segment, which allows for an economical yet technically sound engine repair. This type of component is often chosen as a base for further workshop processing – such as resurfacing, leak testing, or installing new valve train components – in accordance with procedures used in workshops specializing in the BMW brand. Before installation, standard workshop verification is recommended, including inspection of the mating surfaces, ports, and valve seats, so that the cylinder head can work seamlessly with the engine block, fuel injection system, and cooling system. A properly prepared component from this group allows for significantly extending the service life of the power unit after repair.

BMW Cylinder Heads – expansion and engine system modernization

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other elements from the same group, such as cylinder head housings, covers, or additional components related to the valve train, check the available parts in the BMW Cylinder Heads category. For more extensive engine repairs, it is also worth checking out practical tips regarding the selection of dismantled parts and service procedures, described in the article Bodywork and chassis – post-accident repairs using dismantled parts, which organizes the approach to used OEM components in advanced vehicle repairs.