Mercedes CL203 W163 W203 M112.940 Crankshaft A1120302601

Mercedes CL203 W163 W203 M112.940 Crankshaft is an original component from the Crankshafts category, designed for the M112.940 engine series used in Mercedes CL203, W163, and W203 models. This used OEM crankshaft is an ideal solution for those looking to maintain factory engine performance while optimizing repair costs.

Specifications and technical data

• SKU: A1120302601
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1120302601
• Substitutable numbers: A1120302601, A 112 030 26 01, A 112 030 16 01, A1120301601, A 112 030 34 01, A1120303401
• Category: Crankshafts

Purpose and compatibility

The presented crankshaft has been specifically designed for the M112.940 engine, ensuring a proper fit with the engine block, main and connecting rod bearings, and the lubrication system. This maintains the correct geometry of the crank-piston system, allowing the engine to operate under stable load conditions.

Its original Mercedes origin ensures compliance with factory manufacturing tolerances, which is crucial for the durability and smooth operation of the powertrain. This is particularly important during engine overhauls where precise interaction between the crankshaft and other system components is required.

Technical characteristics of the crankshaft

The crankshaft in this series is designed for V-engine operation, featuring precisely shaped main and connecting rod journals as well as oil passages. The applied geometry ensures even force distribution, reduction of torsional vibrations, and proper interaction with the flywheel and vibration dampers.

The main advantages of this component include:

• factory fit for the M112.940 engine,
• preservation of original torque characteristics,
• suitability for professional overhauls of Mercedes CL203, W163, and W203 units.

By using an original crankshaft, you can maintain engine performance parameters at a level close to factory specifications, which translates into stable output and predictable vehicle behavior.

Application in the engine overhaul process

A used crankshaft of this class is suitable for both standard overhauls and more advanced service work where the replacement of crank system components is necessary. When combined with properly selected bearings and correct machining of mating surfaces, a durable and consistent repair result can be achieved.

In workshop practice, using an original crankshaft allows you to:

• minimize the risk of oil pressure issues around the journals,
• maintain correct crankshaft alignment relative to the block,
• ensure proper compatibility with factory engine accessories.

This solution is recommended both for service centers specializing in the Mercedes brand and for individual users who expect a predictable repair outcome.

Benefits of using an original crankshaft

Choosing an original component from the Crankshafts category allows you to maintain the integrity of the entire powertrain. Compared to aftermarket replacements of unknown origin, an original crankshaft provides better parameter consistency and greater confidence regarding dimensional accuracy.

An additional advantage is the ability to verify compatibility through part numbers and interchangeable numbers, which facilitates matching to the specific engine configuration in a given vehicle model. This is particularly important when working with units used across several body generations.

Related components and additional information

If you are planning a comprehensive repair or upgrade of your Mercedes engine area and need other items from the same group, such as other shafts, components interacting with journals, or crank system parts, check out the available parts in the Mercedes Crankshafts category.

For major repairs, especially after collisions or mechanical failures, it is worth checking out practical tips on selecting used OEM components – you can find them in the article Bodywork and chassis – post-accident repairs using dismantled parts, which discusses the approach to salvaged parts in an organized and technical manner.