Gearbox Flywheel Mercedes W203 W211 M112 Starter Ring A1120320247

Mercedes W203 W211 M112 Flywheel A1120320247 is an original part from the Flywheels and Gears group, designed for Mercedes powertrains with the M112 engine. A used OEM part allows for maintaining the factory operating characteristics of the powertrain, ensuring stable torque transfer and proper cooperation with the clutch system or automatic transmission.

Specifications and technical data

• SKU: A6280300012
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6280300012
• Substitutable numbers: A1120320247, A 112 032 02 47, A6280300012, A 628 030 00 12, A1110320176, A 111 032 01 76
• Category: Flywheels & Flexplates

Purpose and Function of the Flywheel

The flywheel in the M112 engine plays a crucial role in stabilizing crankshaft rotation and transferring power to the gearbox. A properly selected component ensures:

• smooth engine operation across the entire RPM range,
• correct interaction with the clutch disc or torque converter,
• reduction of torsional vibrations in the drivetrain,
• compatibility with factory engine control unit settings.

By maintaining its original geometry and weight, the flywheel for Mercedes W203 and W211 with M112 engine allows for maintaining the drive's operating characteristics in line with the manufacturer's design.

Compatibility and Replacement Numbers

The presented flywheel is an OEM component with an assigned part number and a set of interchangeable numbers, which facilitates selection for specific Mercedes configurations. The presence of multiple references allows the same component to be used in different variants of the M112 engine and in selected body versions of the W203 and W211, while maintaining compliance with factory service documentation.

For certainty of fit, it is recommended to verify the OEM part number and reference numbers with the vehicle's documentation or the manufacturer's catalog, especially when upgrading the drivetrain or replacing clutch components.

Performance Characteristics and Installation

The flywheel from this series has been designed for stable operation under typical operating conditions of mid-range and premium Mercedes vehicles. The construction ensures:

• appropriate inertia for smooth starting and gear changes,
• compatibility with the factory starter thanks to the correct profile of the gear ring,
• possibility of installation in place of a worn part without structural modifications.

When replacing, it is recommended to check the condition of the friction surfaces, the gear ring, and cooperating elements (clutch, mounting bolts, shaft seals) to restore the correct operation of the entire drivetrain in a single service operation.

Benefits of Using an Original Mercedes Flywheel

Using an original flywheel in a Mercedes W203 or W211 with an M112 engine allows for maintaining the integrity of the entire drivetrain. The main benefits include:

• factory fit to the crankshaft and gearbox,
• compliance with engine operating parameters and control unit software,
• stable torque transfer during daily operation,
• possibility of use in service projects and moderate mechanical tuning.

For users planning drivetrain modifications or an overhaul of the M112 unit, using an original part from the Flywheels and Gears group offers a sensible compromise between durability and maintenance costs.

Part Condition and Application in Tuning Projects

The offered flywheel is a used part, making it an attractive option for building budget projects, restoring older Mercedes models, or replacing a worn component in a daily driven car. Combined with a properly selected clutch, it can be used in both standard repairs and light tuning projects where maintaining factory compatibility is key.

If you are interested in a broader context of using used drivetrain components in vehicle modifications, it is worth reading the guide Best Used Parts for Tuning Your Car, which discusses a practical approach to selecting aftermarket components.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as additional flywheels, selected gears, or related drive components, check the available parts in the Mercedes Flywheels and Gears category.