Intake Manifold Mercedes W207 W212 W218 OM642 Diesel Inlet Left N/S A6420906637

The Mercedes W212 W218 OM642 Diesel Intake Manifold is an original part from the intake manifolds category, designed for OM642 diesel engines. This used manifold ensures a factory fit for the intake system, maintaining proper cylinder filling characteristics and stable diesel engine operation. It's a solution for users seeking a proven, structurally compliant part for professional repairs.

Specifications and technical data

• SKU: A6420906637
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420906637
• Substitutable numbers: A6420906637, A 642 090 66 37, KD
• Location on the vehicle: Left
• Fuel type: Diesel
• Category: Intake Manifolds

Intended Use and Compatibility

The manifold is designed for use in Mercedes W212 and W218 vehicles equipped with the OM642 diesel engine. The component operates on the left side of the engine, working in conjunction with the factory intake system and diesel engine control.

By maintaining the original intake port geometry, the manifold supports correct cylinder filling, which translates to stable engine running, proper dynamics, and predictable fuel consumption in the diesel engine.

Construction and Function in the Intake System

As part of the intake system, the intake manifold is responsible for evenly distributing air to the individual cylinders of the OM642 engine. The design, adapted to the specifics of the diesel unit, ensures:

• appropriate airflow across the full load range,
• compatibility with the factory engine control,
• maintenance of performance parameters as intended by the manufacturer.

The original manifold design minimizes the risk of leaks and fitment issues common with simplified aftermarket replacements.

Practical Application and Benefits of Installation

Using a used intake manifold in the OM642 engine allows for the restoration of correct intake system operation without altering the factory engine architecture. This is particularly important for modern diesel engines where airflow parameters are closely linked to the ECU maps.

Key benefits of installation include:

• factory fit for the OM642 engine – no need for modifications to mounts and connections,
• maintenance of diesel engine operating characteristics as intended by the manufacturer,
• economical repair while preserving original construction quality.

Condition and Technical Verification

This part is a used item from disassembly, offering a favorable combination of price and original specification. Such a part is a good choice when the existing manifold has suffered mechanical damage, wear and tear, or is causing leaks in the intake system.

Before installation, a standard check of its sealing, mating surfaces, and associated components is recommended, in accordance with service procedures for diesel engines.

More Intake Manifolds and Technical Knowledge

If you are looking for other Mercedes intake manifolds for similar applications, check out our dedicated category: Mercedes intake manifolds. You will find a wide selection of intake components for various models of this brand.

Are you planning a broader upgrade of the exhaust and air flow system or want to better understand the relationships between the manifold and the rest of the components? See the guide on our blog: performance exhaust systems and used manifolds in passenger cars, where we discuss practical aspects of selecting and operating manifolds in modern constructions.