Mercedes W204 W212 W906 OM642 Diesel Engine Camshaft Inlet Intake A6420502801

Mercedes W204 W212 W906 OM642 Diesel Engine Camshaft Inlet Intake is a precision timing system component designed for OM642 diesel engines, used in popular Mercedes C-Class and E-Class models as well as commercial vehicles. As a component from the Camshafts group, it is responsible for the precise control of intake valve opening phases, which translates into stable engine operation. This used original part is a sensible choice for professional diesel engine repairs where fitment and maintaining factory performance parameters are essential.

Specifications and technical data

• SKU: A6420502801
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420502801
• Substitutable numbers: A6420502801, A 642 050 28 01, A64224503
• Fuel type: Diesel
• Category: Camshafts

Purpose and role in the OM642 engine

The presented intake camshaft has been designed to work with the Diesel OM642 engine, used in Mercedes W204, W212, and W906 models. It is responsible for precise control of the intake valves, which has a direct impact on:

• proper cylinder filling with the air-fuel mixture,
• smooth engine operation across the entire RPM range,
• stable combustion parameters and engine refinement,
• maintaining factory torque characteristics.

By maintaining the original cam geometry, the camshaft supports proper interaction with the fuel injection system and electronic control, which is particularly important in modern diesel units.

Benefits of using an original camshaft

Choosing an original intake camshaft for a Mercedes provides a number of practical benefits in daily vehicle operation:

• Factory fitment – maintaining the correct cam profile and camshaft length guarantees compatibility with the cylinder head, tappets, and other timing components.
• Stable diesel engine operation – proper intake valve control reduces the risk of rough idling, power loss, or starting issues on both hot and cold engines.
• Safe repair – using an original element from the Camshafts group minimizes the risk of improper fitment, which is typical for generic aftermarket replacements.
• Consistency with engine electronics – correct timing phasing makes it easier for the ECU to maintain specified operating parameters, which facilitates proper diagnostics and servicing.

Application in Mercedes W204, W212, W906 models

The intake camshaft dedicated to the OM642 unit is used in a wide range of Mercedes vehicles, both passenger and commercial. This makes it particularly useful for:

• comprehensive cylinder head regeneration in a diesel engine,
• repairs following timing or lubrication system failure,
• professional replacement of worn components in heavily used vehicles.

A used, verified camshaft allows for cost optimization of repairs while maintaining the original engine performance characteristics, which is especially important for fleet and commercial vehicles.

Selection and diagnostics of timing components

When planning a timing system repair in modern diesel engines, it is worth paying attention to the completeness of diagnostics and the quality of the parts used. A guide on typical timing system faults, such as chain stretching or wear of mating components, may be helpful. More practical information can be found in the article: BMW N47 Timing Chain – typical failure and repair using original BMW parts, which discusses symptoms of wear and the approach to timing repairs in diesel engines – many service principles remain similar for OM642 units as well.

Repair expansion – other Mercedes Camshafts

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as exhaust camshafts, additional auxiliary shafts, or compatible mating components, check the available parts in the Mercedes Camshafts category.

Summary

Mercedes W204 W212 W906 OM642 Diesel Engine Camshaft Inlet Intake is a functional, original component designed for diesel engines that helps restore the proper operation of the timing system. Using a component from the Camshafts group with factory cam geometry promotes stable operation of the OM642 unit, which translates into predictable performance and proper interaction with engine electronics. This is a practical solution for workshops and users looking for a technically matched, original part when repairing a diesel engine in Mercedes W204, W212, and W906 models.