Inlet Manifold BMW E87 Diesel 118d 120d M47N2 Panel Air Intake Suction 7790601

Visual condition of the part

The product shows signs of use visible in the photos.

Inlet Manifold BMW E87 Diesel 118d 120d M47N2 Panel Air Intake Suction is an original intake system component designed for BMW 1 Series E87 diesel units. It ensures stable airflow guidance to the intake system, supporting smooth diesel engine operation and proper integration with the factory intake manifold. By maintaining OEM geometry, this air duct cover helps preserve factory flow parameters and reduces the risk of unwanted turbulence.

Specifications and technical data

• SKU: 7790601-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7790601
• Substitutable numbers: 13717790601, 7790601
• Fuel type: Diesel
• Category: Intake Manifolds

Purpose and function in the intake system

The air intake duct cover in the BMW E87 is responsible for directing air into the intake system and protecting the area around the engine from external contaminants. In Diesel units, this is particularly important as stable and consistent airflow affects engine refinement, throttle response, and the correct operation of fuel dosage control systems.

The component works with the factory intake system and manifold, creating a cohesive flow channel. A correctly installed cover helps prevent water, mud, and fine debris from entering the intake area, which helps maintain the efficiency of other components.

Construction and fitment for BMW E87

The cover has been designed specifically for the engine bay geometry of the BMW 1 Series E87, ensuring precise fitment to factory mounting points. This means:

• maintaining proper alignment with the intake manifold,
• no need for modifications or adjustments to the component,
• consistent air duct routing within the engine bay.

Such fitment is particularly crucial in diesel engines, where even minor leaks or changes in intake geometry can affect engine performance. The Inlet Manifolds category, to which this element belongs, includes components directly related to air delivery to the engine, which is why proper fitment is significant for both operational and service reasons.

Characteristics of the used component

The presented air duct cover is sourced from dismantling and is offered as a used part. This type of component, provided it maintains its structural integrity and mounting points, can be successfully reused in a vehicle, providing functionality close to factory standards. A used intake system component is a sensible choice in situations where:

• the original cover has suffered mechanical damage,
• cracks or deformations affecting airflow have occurred,
• replacement is necessary as part of a repair following a collision or engine bay intervention.

Choosing a part from dismantling allows you to maintain the original BMW intake system design, which is beneficial for both service purposes and future diagnostics.

Application in BMW Diesel engines

In BMW E87 diesel units, a properly functioning intake system has a direct impact on combustion efficiency and operational stability. The air intake duct cover supports:

• maintaining predictable airflow to the intake manifold,
• limiting the impact of external conditions (rain, road dirt) on the intake area,
• preserving the factory configuration of components in the engine bay.

As a result, the diesel engine can operate under conditions close to the manufacturer's specifications, which helps maintain stable performance and facilitates any future service work.

Intake system expansion and related components

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as intake ducts, housing components, or additional air hoses, check the available parts in the BMW Inlet Manifolds category.

For drivers interested in a broader perspective on exhaust flow and the connection between the intake and exhaust systems, an article describing the selection of used components in premium cars may be helpful – more information can be found in the material about performance exhaust systems and used manifolds in BMW and other brands.

If you want to better understand how a wide selection of parts in one place affects repair time and reduces vehicle downtime in the workshop, it is also worth reading the guide on shortening repair times thanks to a large assortment of used parts.