Mercedes W204 W221 M271 Petrol OM642 Diesel Vacuum Pump A2722300465

Mercedes W204 W221 M271 Petrol OM642 Diesel Vacuum Pump is an original component from the Vacuum pumps group, designed for petrol-powered systems. This used OEM part ensures proper generation of the vacuum necessary for the operation of control and assistance systems in Mercedes engines, maintaining factory parameters and fitment.

Specifications and technical data

• SKU: A2722300465
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2722300465
• Substitutable numbers: A2722300465, A 272 230 04 65
• Fuel type: Petrol
• Category: Vacuum Pumps

Purpose and function in the engine system

The presented vacuum pump is a component used in petrol units from the M271 family and in selected configurations with the OM642 engine in Mercedes W204 and W221 class models. It is responsible for the stable generation of vacuum used, among other things, in engine accessory control systems and selected auxiliary systems, which translates into predictable operation of the power unit.

Thanks to a design consistent with the manufacturer's factory standards, the pump works with the existing installation without the need for modifications, maintaining proper flow and sealing parameters. This solution is particularly important when servicing vehicles where maintaining the original characteristics of the vacuum system is required.

Benefits of using an original vacuum pump

Using an original vacuum pump in Mercedes cars with petrol engines helps reduce the risk of problems with unstable engine accessory operation. The part from the Vacuum pumps category has been designed for the specific architecture of M271 and OM642 units, which promotes proper lubrication, cooling, and fitment to factory mounts.

The main advantages of this solution include:

• factory fitment to the Mercedes powertrain,
• preservation of the original vacuum operating characteristics,
• consistency with other engine control system components,
• ability to use existing mounting points and connections.

The used OEM part represents a reasonable compromise between repair cost and maintaining compliance with factory specifications, which is particularly important in the case of more complex power units.

Selection by numbers and compatibility with the fuel system

The pump has been designed to work with engines powered by petrol, which is important when selecting components within the entire powertrain. Proper matching by catalog numbers and manufacturer markings allows you to avoid problems with installation and incorrect operation of the vacuum system.

If you want to deepen your knowledge about selecting components within the fuel system, diagnostics, and regeneration, an article describing injectors, pumps, and the fuel tank will be helpful – check out the guide on the fuel system, selection by VIN/OEM, and operating principles, which facilitates informed planning of service work.

Condition, cost-effectiveness, and service application

The offered vacuum pump is a used component, which in workshop practice often represents a cost-effective way to restore system efficiency while maintaining the manufacturer's original specifications. In the case of more complex Mercedes power units, choosing a used OEM part is beneficial for both the user and the service center, especially when structural and mounting compatibility is a priority.

If you are interested in the broader economic context of using used components, it is worth reading the material describing strategies for saving on service – see how used OEM parts help reduce repair costs without sacrificing quality and fitment.

Related items from the same group

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as additional vacuum pumps, vacuum lines, or control valves, check out the available parts in the Mercedes Vacuum pumps category.