Mercedes W221 Exhaust Outlet Manifold Right O/S M272 Petrol Engine A2721402609

The Mercedes W221 M272 Gasoline Exhaust Manifold Right is an original exhaust system component designed for M272 gasoline engines in the W221 body style. The right side manifold is responsible for efficient exhaust gas removal from the corresponding cylinder bank, which directly impacts engine running smoothness and performance stability. Choosing a used, factory manifold is a sensible solution for repairs when you want to maintain the proper operating parameters of the powertrain.

Specifications and technical data

• SKU: A2721402609
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2721402609
• Substitutable numbers: A2721402609, A 272 140 26 09
• Location on the vehicle: Right
• Fuel type: Petrol
• Part type: Exhaust Manifold
• Category: Manifolds & Headers

Exhaust Manifold Purpose and Function

The presented exhaust manifold belongs to the Exhaust Manifolds category and is dedicated to the M272 gasoline engine in the Mercedes S-Class W221 model. Its function is to collect exhaust gases from individual cylinders on the right side of the unit and direct them further to other exhaust system components. A correctly selected manifold ensures proper exhaust gas flow, which translates to stable engine operation, responsive throttle response, and correct emission values.

Its placement on the right side of the vehicle is significant for both installation and servicing – using the correct variant eliminates problems with fitting to the cylinder head, ancillaries, and other exhaust sections. This makes replacement smoother and reduces the risk of leaks and unwanted vibrations.

Benefits of Using an Original Mercedes Manifold

The original Mercedes exhaust manifold is designed specifically for the characteristics of the M272 engine, thus maintaining factory geometry of the channels and mounting points. In practice, this means:

• secure fit to the cylinder head and engine ancillaries,
• maintenance of the manufacturer's intended exhaust gas flow,
• stable powertrain operation across the full RPM range,
• reduced risk of leaks at connections.

For the user, this means the ability to restore correct exhaust system operation without the need for universal solutions or modifications. The factory design also simplifies diagnostics – engine operating parameters remain consistent with manufacturer specifications, which is important for subsequent inspections and potential emission measurements.

Installation and Operational Characteristics

The right-side exhaust manifold in the M272 gasoline engine is a component operating at high temperatures and under significant thermal load. Using an original part helps maintain appropriate rigidity and resistance to deformation, which is important for the durability of seals and the stability of connections with further exhaust sections. Correct fitment to the gasoline unit reduces the risk of stress build-up that could lead to cracks or leaks.

A used exhaust manifold is a particularly attractive solution for operational repairs when the existing component has been damaged, for example, due to corrosion, cracking, or mechanical damage. By choosing an original component from a dismantled vehicle, you maintain the factory exhaust gas flow characteristics, which is beneficial for both engine operation and its interaction with other exhaust system components.

Fitment to the Exhaust System and Engine Bay

Due to the specific layout of the M272 unit in the W221 body, the right-side exhaust manifold must be precisely fitted to the engine bay space, heat shields, and further exhaust sections. An original part ensures proper clearances from temperature-sensitive components, which is important for safety and user comfort. Consistency with the factory exhaust system also simplifies subsequent servicing – the mechanic deals with a solution that is consistent with the manufacturer's documentation.

If you are planning a comprehensive repair or upgrade of the exhaust system area in your Mercedes and need other parts from the same group, such as connecting pipes, mufflers, or mounting elements, check the available parts in the Mercedes Exhaust Manifolds category.

Technical Support and Additional Knowledge

When selecting a used exhaust manifold for a Mercedes, it is worth paying attention to compatibility with the specific engine version and exhaust system configuration. For users who want to better understand the manifold's impact on performance and engine characteristics, we have prepared a guide – you can find more information in the article Performance Exhaust Systems: Used Manifolds and Sport Catalytic Converters on the Road, where we discuss, among other things, the selection of used manifolds for popular brands, including Mercedes.