BMW E60 N62N E90 E91 LCI F10 F20 F30 N47N Sealing Cap Oil Filler Neck Engine

BMW E60 N62N E90 E91 LCI F10 F20 F30 N47N Sealing Cap Oil Filler Neck Engine is an original lubrication system component designed for installation in the front part of the engine unit in selected BMW models. Thanks to its precise fit to the factory socket, it ensures a tight seal of the oil filler neck, reducing the risk of leaks and contamination. This is a practical solution for users who need a proven oil filler cap that complies with factory specifications for their BMW.

Specifications and technical data

• SKU: 8655331
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8655331
• Substitutable numbers: 11128655331, 8655331, 11124737102, 4737102, 11127560481, 7560481, 11128619360, 8619360, 11127560482, 7560482, 11128619359, 8619359, 11128507153, 8507153, EM
• Location on the vehicle: Front
• Category: Other Engine Parts

Purpose and function of the BMW oil filler cap

The oil filler cap in BMW engines from the E60, E90, E91 LCI, F20, and F30 series, as well as N62N and N47N units, is responsible for securely closing the engine oil filler neck in the front part of the powertrain. A correctly selected component maintains the proper tightness of the lubrication system, which is important for stable engine performance and the cleanliness of the engine bay.

The offered cap is a BMW part, which means it complies with the manufacturer's factory requirements regarding geometry, material, and mounting method. As a result, installation is predictable, without the need for modifications or the use of additional adapters.

Construction and fitment to the engine unit

The component has been designed to operate in the front zone of the engine, where it is exposed to temperature changes, contact with oil, and typical engine vibrations. The design of the cap takes into account:

• a shape matched to the socket in the engine cover in selected BMW models,
• a sealing solution that limits oil leaks when tightened correctly,
• a profile that facilitates unscrewing and tightening during maintenance.

By maintaining factory dimensions, the cap works with the original valve cover and other lubrication system components, which promotes stable and predictable operation.

Application in BMW models and service aspects

The presented oil filler cap is intended for engines used in, among others, the BMW 5 Series E60, 3 Series E90/E91 LCI, and newer F20 and F30 generations with N62N and N47N units. Replacing the cap is recommended in situations where the existing component shows signs of wear, mechanical damage, or leaks, which may manifest as oil seepage in the front part of the engine.

During maintenance, it is worth paying attention to:

• the condition of the cap's sealing surface,
• proper seating in the socket,
• the absence of contaminants around the oil filler neck.

Selecting a cap compatible with the engine unit is facilitated by identification via the OEM part number and interchangeable numbers, which are detailed in the product's technical specification.

Product condition and benefits of choosing BMW parts

The offered oil filler cap is a used component, which allows for an economical replacement while maintaining compliance with the factory engine design. Choosing an original BMW component helps maintain material and structural consistency within the lubrication system, which is important for the long-term operation of the vehicle.

For users planning more extensive work on the engine or accessories, information on the structural differences between sports and standard engine units may also be helpful – you can find them in the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, issues related to engines, brakes, and the chassis.

Expanding service work within the BMW engine

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 additional service caps, small mounting elements, or supplementary accessory components, check the available parts in the Other BMW category.