Flywheel Mercedes W204 Petrol M272 M273 Flywheel Starter Ring Gear A2730300312

Flywheel Mercedes W204 Petrol M272 M273 Flywheel Starter Ring Gear is a precision drivetrain component designed for M272 and M273 series petrol engines. It is responsible for stable torque transmission, proper interaction with the starter motor, and smooth operation of the power unit. Choosing an original flywheel from the Flywheels and ring gears category allows you to maintain the factory performance parameters of the engine and transmission.

Specifications and technical data

• SKU: A2730300312
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2730300312
• Substitutable numbers: A2730300312, A 273 030 03 12
• Fuel type: Petrol
• Category: Flywheels & Flexplates

Purpose and function in the drivetrain

The presented flywheel with a ring gear is a component dedicated to petrol engines, ensuring a proper fit for the operating characteristics of M272 and M273 units. It is responsible for storing kinetic energy, dampening crankshaft rotational irregularities, and ensuring stable cooperation with the clutch disc or automatic transmission system (depending on the specific factory configuration of the vehicle).

The ring gear enables correct engagement with the starter, which translates into reliable and consistent engine starts without slipping or unwanted vibrations. A properly selected flywheel reduces vibrations transmitted to the chassis, improving driving comfort and the durability of other drivetrain components.

Benefits of using an original Mercedes flywheel

The original Mercedes flywheel ensures that factory dimensional tolerances and the appropriately selected mass are maintained, which is crucial for the refinement of a petrol engine. As a result:

• the proper balance of the crankshaft and accessories is maintained,
• the risk of excessive torsional vibrations is reduced,
• correct cooperation with the starter and clutch is ensured,
• the engine retains the dynamics and smoothness of acceleration intended by the manufacturer.

Choosing a component from the Flywheels and ring gears group dedicated to a specific power unit helps avoid problems with incorrect mass, hole spacing, or ring gear profile.

Condition, verification, and service application

The product comes from a used vehicle, which allows for economical repair while maintaining the manufacturer's original specifications. This type of component is particularly useful for:

• overhauling an M272 or M273 petrol engine,
• replacing a worn flywheel that causes vibrations or starting problems,
• comprehensive maintenance of the clutch system or transmission.

Selecting the correct flywheel is also important from a diagnostic point of view – incorrect mass or geometry can cause hard-to-locate vibrations, noise, and accelerated wear of crankshaft bearings and transmission components.

Use in tuning and modernization projects

The flywheel with a ring gear for M272/M273 petrol engines can be used not only in standard repairs but also in modernization projects where maintaining factory reliability while increasing performance is key. The original component provides a solid base for further drivetrain modifications without the risk of compromising starting quality or unit stability.

If you are interested in how to effectively use used components in vehicle modification projects, it is worth checking out the practical tips included in the article The best used parts for tuning your car, which discusses the advantages of consciously selecting components from the secondary market.

Expanding the scope of repair – related items

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other items from the same group, such as additional gears, components interacting with the starter, or drivetrain parts, check out the available parts in the Mercedes flywheels and ring gears category.

For users who are simultaneously working on improving vehicle handling, a guide dedicated to suspension, available in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, may also be helpful, facilitating the planning of broader service work on the car.