Balance Shaft Mercedes X117 Petrol M270 Dynamic Balancer Housing A2700300900

Balance Shaft Mercedes X117 Petrol M270 Dynamic Balancer Housing is a specialized component of the engine balancing system, designed for M270 series petrol engines. The precisely engineered balancer shaft assembly with housing helps reduce torsional vibrations and oscillations, improving engine refinement and driving comfort. Thanks to its design compliant with the manufacturer's standards, it ensures proper integration with the factory lubrication system and engine block.

Specifications and technical data

• SKU: A2700300900
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2700300900
• Substitutable numbers: A2700300900, A 270 030 09 00
• Fuel type: Petrol
• Category: Other Car Parts & Accessories

Purpose and function in the M270 petrol engine

The presented balancer shaft assembly with housing is a component of the balancing system in a petrol engine, designed to reduce vibrations generated by the operation of the pistons and the crankshaft. The properly selected gear ratio and shaft geometry allow for:

• reduced transmission of vibrations to the body and drivetrain,
• more stable engine operation across the entire rev range,
• more predictable vehicle behavior during acceleration and engine braking.

As a result, the drivetrain maintains proper refinement, which translates into user comfort and reduced stress on other components cooperating with the engine.

Construction of the balancer shaft assembly with housing

The set includes an integrated balancer shaft assembly with a housing, which facilitates installation and ensures that factory clearances and alignment are maintained. The housing also serves as a guiding and load-bearing element for the shafts, ensuring:

• stable seating in the engine block,
• controlled lubrication of bearing points,
• maintenance of the correct geometry of the balancing system.

This solution reduces the risk of improper installation and allows for efficient replacement of the entire assembly during engine repair.

Benefits of using the original balancer shaft assembly

Using a complete, factory-designed balancer shaft assembly with housing in an M270 petrol engine provides a number of practical service and operational benefits:

• Restoration of factory engine refinement – reduction of vibrations and noise in the cabin.
• Better protection of cooperating components – lower loads on engine mounts, accessories, and the exhaust system.
• Consistency with service documentation – easier diagnostics and maintenance in the future.
• Simplified installation – the assembly with housing minimizes the number of adjustment operations.

For workshops, this means shorter repair times and greater consistency of results, and for the user – stable, predictable engine operation.

Application in Mercedes vehicles and part selection

The component is intended for M270 family petrol engines used in Mercedes vehicles, including the X117 body style. When selecting parts, it is crucial to compare engine identification data and catalog numbers in the vehicle's service documentation. Proper matching of the balancer shaft assembly avoids installation issues and ensures correct cooperation with the lubrication and timing drive systems.

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 accessory modules, lubrication system components, or additional mounting hardware, check the available parts in the Other Mercedes category.

Condition of the component and service application

The offered balancer shaft assembly with housing is a used part, making it an attractive solution for the economical repair of the M270 petrol engine. Such components are often chosen by workshops specializing in servicing Mercedes units when it is necessary to restore the proper operation of the balancing system while maintaining reasonable repair costs.

If you are planning more extensive work on the engine, including the fuel system, ignition, or accessories, it is worth reading the guide material regarding design and operational differences in high-performance petrol units – the article Audi RS vs other models – what is hidden under the hood and chassis? may be helpful, as it discusses, among other things, the impact of technical solutions on engine durability and performance characteristics.