Mercedes CL203 C208 W208 CLK 320 Engine Balance Shaft M112 Petrol 1120341122

Mercedes CL203 C208 W208 CLK 320 Engine Balance Shaft M112 is a precision timing system component designed for the M112 series petrol engines. It is responsible for balancing engine operation, reducing vibrations, and improving overall refinement, which directly translates into driving comfort and component durability. As part of the Camshafts category, it is a key component for professional engine repairs or overhauls in Mercedes CLK models.

Specifications and technical data

• SKU: A1120341122
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1120341122
• Substitutable numbers: A1120341122, A 112 034 11 22, 1120341122
• Fuel type: Petrol
• Category: Camshafts

Purpose and function in the M112 engine

The presented balance shaft is designed to work with the M112 petrol engine used in Mercedes CL203, C208, and W208 CLK 320 models. Its task is to compensate for inertial forces and balance the operation of the power unit, which limits the transmission of vibrations to the body and auxiliary components.

In practice, a properly selected balance shaft:

• stabilizes the operation of the crankshaft at various rotational speeds,
• reduces dynamic loads in the crank-piston system,
• contributes to a smoother, more predictable throttle response,
• reduces noise and vibrations felt in the cabin.

Benefits of using an original Mercedes component

The balance shaft in this offer comes from the Mercedes brand, which means maintaining the factory geometric and material parameters intended for the M112 engine. Thanks to this:

• it ensures proper fitment with the housing and other timing system components,
• it maintains the power unit's operating characteristics as designed,
• it minimizes the risk of issues with improper synchronization or excessive wear of mating parts.

Choosing an original balance shaft is particularly important in petrol engines, where precision balancing and manufacturing accuracy have a direct impact on refinement and long-term reliability.

Installation characteristics and application

The balance shaft is intended for installation in petrol engines that utilize a design with an additional balancing system. This element works with the timing mechanism, so its condition is important for both driving comfort and engine safety.

When replacing the balance shaft, it is recommended to:

• check the condition of mating gears and chains,
• inspect for play and any signs of wear on seats and bearings,
• follow proper installation procedures in accordance with Mercedes service documentation.

Such work is particularly recommended during M112 engine overhauls, when symptoms of excessive vibration, noise, or damage within the timing system are identified.

Product condition and practical aspects

The offered balance shaft belongs to the Camshafts category and is a used part, which allows for economical repair while maintaining the manufacturer's original specifications. For workshops and private users, this means the ability to restore proper engine operation without the need for costly new components.

In case of doubts regarding the selection of parts for a specific version of the M112 engine, it is worth comparing the markings with the vehicle documentation or consulting a mechanic specializing in the Mercedes brand to ensure full compatibility with the given power unit configuration.

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 additional shafts, drive elements, or mating timing components, check the available parts in the Mercedes Camshafts category.

Why choose a used OEM part

When repairing Mercedes petrol engines, choosing a used, original balance shaft is often more cost-effective than installing a replacement of uncertain specification. The factory component retains the parameters intended by the manufacturer, which limits the risk of problems with balancing, excessive vibrations, or accelerated wear.

If you want to better understand the differences between a used OEM part and a replacement and learn practical selection criteria, it is worth reading the article: 5 reasons why a used OEM part is a better choice than a replacement.