BMW 3 5 Series F10 F11 F30 F31 N57N Oil Filler Neck Cylinder Head 8507608

BMW 3 5 Series F10 F11 F30 F31 N57N Oil Filler Neck Cylinder Head is a precision lubrication system component, specifically designed for BMW N57N engine units. It is responsible for secure, leak-proof, and convenient engine oil replenishment, which directly impacts stable engine operation and operational safety. Thanks to the use of original geometry, the filler neck ensures a proper fit to the valve cover and compatibility with the factory oil filler cap.

Specifications and technical data

• SKU: 8507608
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8507608
• Substitutable numbers: 11128507608, 8507608, EM
• Category: Oil Drain Plugs, Filler Caps & Dipsticks

Purpose and function of the oil filler neck

The oil filler neck in BMW N57N engines plays a key role in safely guiding oil into the engine unit. A properly shaped channel minimizes the risk of splashing, facilitates controlled oil refilling, and limits the possibility of contaminants entering the lubrication system. The correct filler neck is particularly important in modern diesel engines, where stable oil pressure and the purity of the lubricating medium affect the durability of the turbocharger, timing system, and forced induction components.

Construction and fitment for BMW F10, F11, F30 with N57N engine

The presented filler neck has been designed for installation in the engine bay of BMW 5 Series F10/F11 and 3 Series F30 models equipped with the N57N unit. This means that:

• its geometry is adapted to the factory valve cover and oil filler port,
• it ensures stable seating of the filler cap,
• it maintains proper sealing in the filler area, limiting leaks and oil evaporation,
• it facilitates service oil refilling without the need for additional adapters.

By maintaining the original design, the filler neck works with factory engine components, which translates into trouble-free installation and predictable operational performance.

Benefits of using an original BMW filler neck

Choosing an oil filler neck from the Oil drain and filler plugs and dipsticks group dedicated to specific BMW models allows you to maintain the parameters specified by the manufacturer. The most important advantages include:

• maintaining the factory tightness of the oil filler system,
• proper oil guidance during refilling, which limits dirt in the engine bay,
• compatibility with the original oil filler cap and valve cover accessories,
• consistency with BMW factory service procedures.

The component from this group is particularly important in vehicles used intensively, where more frequent checking and topping up of oil requires a stable and predictable filler point.

Condition, service application, and part selection

The offered BMW oil filler neck is an aftermarket part intended for service applications in vehicles where the factory component has been damaged, cracked, or excessively worn. Replacing the filler neck is recommended, among other situations, when:

• a leak has been detected in the area of the oil filler,
• the filler cap does not hold its position stably or has noticeable play,
• mechanical damage to the filler neck has occurred during service work.

To ensure full compatibility, before purchasing, it is worth verifying the fitment for a specific BMW 5 Series F10/F11 or 3 Series F30 with an N57N engine using service documentation or specialized parts catalogs.

Related lubrication system components and engine zones

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as oil drain plugs, filler caps, or dipsticks, check the available parts in the BMW oil drain and filler plugs and dipsticks category.

For a better understanding of the impact of proper lubrication and operating temperature on engine unit durability, it is worth reading our guide: Engine cooling system – overheating, repair, and used radiators. The article helps link the condition of the cooling system with oil condition and overall engine lifespan, which is particularly important in modern BMW units.