BMW F10 M5 S63N Fuel Rail Petrol High Pressure Injection Tube Cyl. 5-8 7599868

BMW F10 M5 F12 F13 M6 S63N Fuel Rail Cylinders 5-8 is an original gasoline fuel system component, designed for the S63N engine in sporty BMW M series models. The rail serves cylinders 5-8, ensuring stable fuel supply under high loads and RPMs.

Specifications and technical data

• SKU: 7599868
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8649321
• Substitutable numbers: 7599868, 13537599868, 8649321, 13538649321, 7642156, 13537642156
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Role in the Fuel System

The fuel rail for cylinders 5-8 operates within the high-pressure gasoline injection system of the S63N engine, used in BMW M5 F10 and BMW M6 F12/F13 models. It is responsible for the uniform distribution of fuel to the injectors, which is crucial for the stable operation of the V8 biturbo unit, especially in the high power and torque range.

Thanks to its precise OEM design, the rail helps maintain:

• correct fuel pressure in the cylinder bank 5-8,
• uniform gasoline delivery to each injector,
• consistent combustion parameters during dynamic driving and high thermal load.

Construction and Fitment for the S63N Engine

The component has been specifically designed for the S63N engine architecture, taking into account the two-cylinder bank layout and the specific routing of fuel lines. This means:

• factory mounting points matched to the cylinder head on the side of cylinders 5-8,
• geometry adapted to the stock M5/M6 engine ancillaries,
• compatibility with original gasoline injectors used in the S63N unit.

Such precise fitment facilitates installation and allows for the preservation of the fuel system's factory operating characteristics without the need for modifications to the system.

Benefits of Using an Original Fuel Rail

In high-performance engines like the S63N, the condition of fuel system components directly impacts operational reliability and safety. Using the original BMW fuel rail for cylinders 5-8 allows for:

• minimizing the risk of leaks in the high-pressure fuel area,
• maintaining stable engine operation under high load and temperature,
• ensuring proper cooperation with the factory engine control unit and injection ancillaries,
• reducing the risk of power loss resulting from fuel supply issues in one cylinder bank.

Application in BMW M Vehicles

The BMW F10 M5 F12 F13 M6 S63N Fuel Rail Cylinders 5-8 is intended for sporty BMW M models with the S63N gasoline engine. This solution is dedicated to high-specification units where precise fuel delivery is critical for performance, running refinement, and component durability.

Choosing an original part helps maintain the engine's factory operating parameters, which is particularly important in vehicles used dynamically, both on the road and during occasional track use.

Technical Support and Related Materials

If you are looking for other BMW injector nozzles for your car, check out our dedicated category: BMW injector nozzles. There you will find a wide selection of fuel system components tailored to various models of this brand.

When diagnosing fuel injection system problems, it is worth familiarizing yourself with educational materials. Although your engine is gasoline-powered, many principles regarding symptoms and consequences of injector faults remain similar – an article on our blog might be helpful: diesel injector faults – how to recognize them and what are the consequences of neglecting them, which discusses typical symptoms and diagnostic approaches.

For a broader perspective on vehicle maintenance and service planning, you can also use the advice contained in the post: TOP 10 most frequently replaced parts in your car, which will help you optimize your car's maintenance costs.