Exhaust Manifold Mercedes W207 W212 Diesel OM642 Right Exhaust Pipe A6421400809

Description

Mercedes W207 W212 Diesel OM642 Exhaust Manifold A6421400809 is an original exhaust system component designed for OM642 diesel engines, mounted on the right side of the engine. Thanks to its factory geometry and precise fit for the W207 and W212 body configurations, it ensures stable exhaust gas evacuation and proper cooperation with other system components. This is a solution for users looking for a proven Mercedes exhaust manifold configured according to the manufacturer’s original specifications.

Specifications and technical data

• SKU: A6421400809-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6421400809
• Substitutable numbers: A6421400809, A 642 140 08 09, BG
• Location on the vehicle: Right
• Fuel type: Diesel
• Category: Manifolds & Headers

Purpose and Compatibility with OM642 Engine

The presented exhaust manifold is designed to work with the OM642 diesel engine, used in Mercedes W207 and W212 models. The construction, adapted to the specific fuel type, allows for maintaining proper exhaust gas flow, which is important for both the turbocharger’s operation and subsequent exhaust system components.

Its placement on the right side of the power unit means the manifold is prepared for installation in a precisely defined position, maintaining correct mounting points and channel geometry. Such a fit minimizes the risk of thermal and mechanical stress that could occur if components with incorrect shapes were used.

Technical and Functional Characteristics

As a component in the Exhaust Manifolds category, this model is responsible for collecting exhaust gases from the cylinders and directing them to the rest of the system. Appropriately shaped channels promote uniform load distribution across individual cylinders and stable engine operation across the entire RPM range.

In practice, this translates to:

• maintaining proper exhaust pressure on the exhaust side,
• correct cooperation with the turbocharger and other system components,
• reducing leaks in the area where the cylinder head connects to the exhaust system.

Choosing a manifold dedicated to a specific engine and body type is particularly important for diesel engines, where operating conditions (high temperature and pressure) require the use of appropriately designed components.

Condition, Origin, and Service Application

The offered Mercedes exhaust manifold is a used part from a dismantled vehicle, intended for users seeking a used component with factory geometry and mounting points. This type of part is suitable for both standard replacement of a worn-out manifold and for repairs related to leaks in the exhaust area on the right side of the engine.

Opting for an original used manifold is often a cost-effective solution when aiming to maintain the system’s original operating parameters while optimizing repair costs. By preserving the correct shape and mounting points, existing accessories and connections can be utilized without the need for installation modifications.

Benefits of Using an Original Mercedes Exhaust Manifold

Using a dedicated exhaust manifold in the OM642 engine offers a range of practical service and operational benefits:

• maintaining compliance with the manufacturer’s original specifications regarding exhaust gas flow,
• reducing the risk of leaks and improper turbocharger loading,
• easier installation due to matched mounting points and correct geometry.

For workshops and individual users, this means a more predictable repair process and the ability to maintain stable engine operating parameters. For diesel engines, this directly impacts the smoothness of operation, performance, and the correct functioning of exhaust gas purification systems.

More Solutions in the Mercedes Exhaust Manifolds Category

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 manifolds, connection sections, or parts that cooperate with the turbocharger, check the available parts in the Mercedes Exhaust Manifolds category.

Learn More About the Exhaust System

If you want to better understand the impact of the exhaust manifold on the performance and durability of the system, as well as find practical tips for selecting used components for various brands, check out the article on our blog: Performance Exhaust System: Used Manifolds and Sport Catalytic Converters on the Road.