BMW 1 3 5 Series F10 F20 F21 F30 F31 N20 Vacuum Engine Block Hose Pipe 7603816

BMW 1 3 5 Series F10 F20 F21 F30 F31 N20 Vacuum Engine Block Hose Pipe is an original component from the Lines, hoses and pipes group, designed for the vacuum system in N20 units used in popular BMW F-series models. This used OEM component ensures proper vacuum routing within the engine bay, which translates into stable operation of the auxiliary equipment and predictable engine performance.

Specifications and technical data

• SKU: 7603816
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7603816
• Substitutable numbers: 11157603816, 7603816
• Category: Hoses, Lines & Pipes

Purpose and function of the vacuum hose

The presented vacuum hose is a component of the vacuum system in the N20 petrol engine fitted in BMW F10, F20, F21, F30, and F31 models. It is responsible for tight and stable vacuum routing between individual components, which is crucial for, among other things, engine control operation and vacuum-dependent actuators. A correctly selected hose reduces the risk of leaks, power drops, and unstable idle speed.

Design and fitment for the N20 unit

The hose has been designed as an OEM part for the N20 unit, ensuring that its geometry, connection diameters, and length are matched to the factory routing in the engine bay. Properly formed sections and bends facilitate installation in original mounts and minimize stress during engine operation. Such fitment helps maintain the tightness of the vacuum system and reduces the risk of abrasion resulting from contact with other engine components.

Benefits of using an original vacuum hose

Using an original vacuum hose in the N20 engine allows for maintaining the factory operating parameters of the vacuum system. The main advantages include:

• secure fitment to the engine system without the need for modifications,
• stable vacuum routing under typical operating conditions,
• reduced risk of ECU errors resulting from leaks,
• easier system diagnostics due to maintaining the factory hose configuration.

For the user, this means more predictable engine operation and a lower risk of problems related to incorrect pressure in the intake system and auxiliary equipment.

Component condition and service application

The offered vacuum hose comes from disassembly and is marked as a used original BMW component. This type of part is suitable both for standard replacement of a worn-out hose and for broader service work within the N20 engine vacuum system. Choosing an OEM component from this group allows for maintaining consistency with other system elements and facilitates future maintenance.

Expanding work in the BMW engine area

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 additional vacuum lines, crankcase ventilation hoses, or fluid supply pipes, check out the available parts in the BMW lines, hoses and pipes category.

Support for modifications and tuning

When modifying the N20 unit – especially in terms of increasing engine load – the condition and configuration of the vacuum system are essential for reliability. Properly selected lines and hoses help maintain stable operating conditions for auxiliary equipment, which is important when increasing unit parameters. If you want to better plan such modifications and utilize the potential of used components, check out the guide How to increase engine power: a practical guide to engine tuning with used parts, which discusses a practical approach to safe tuning.