Connecting Rod Piston Mercedes W204 Petrol Engine M272 A2730300820 A2720301018

Mercedes W204 Gasoline M272 Connecting Rod with Piston is an original part from the Connecting Rods and Parts category, designed for M272 series gasoline engines. This is a solution for users looking for a factory-fitted component with stable operating parameters, enabling professional engine repair without compromising structural compatibility.

Specifications and technical data

• SKU: A2730300820
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2730300820
• Substitutable numbers: A2730300820, A 273 030 08 20, A2720301018, A 272 030 10 18, A2720304017, A 272 030 40 17
• Fuel type: Petrol
• Category: Connecting Rods & Parts

Purpose and Technical Characteristics

The presented connecting rod with piston has been designed to work with the M272 gasoline engine used in Mercedes W204 models. The construction is based on the manufacturer's original specifications, ensuring correct geometry, appropriate rigidity, and maintenance of the standard operating parameters of the connecting rod and piston assembly.

Thanks to the use of an original solution, it is possible to maintain the correct engine operating cycle, proper balancing, and predictable crankshaft load. This is particularly important when repairing gasoline engines, where precise matching of moving parts directly impacts the smoothness of operation and the durability of the entire engine.

Application in M272 Gasoline Engine

The connecting rod with piston is dedicated to units powered by gasoline fuel, meaning it is adapted to the thermal and mechanical loads characteristic of such engines. The part works with the standard crankshaft assembly, maintaining:

• appropriate rigidity at high rotational speeds,
• stable piston guidance within the cylinder,
• correct force transfer between the piston and the crankshaft.

A set configured in this way allows for repairs to be carried out in a manner similar to factory assembly, without the need to modify other components of the connecting rod and piston assembly.

Benefits of Using an Original Connecting Rod with Piston

Using an original connecting rod with piston in an M272 engine offers a range of practical service and operational benefits. The most important include:

• Factory Fitment – maintaining standard tolerances and geometry, which facilitates installation and reduces the risk of balancing issues.
• Consistency with other system components – compatibility with the standard crankshaft, piston pin, and lubrication system.
• Possibility of professional engine rebuilding – especially for repairs after seizure, overheating, or mechanical damage to one of the cylinders.

For workshops specializing in the Mercedes brand, such a part serves as a practical basis for reliable engine rebuilding, maintaining parameters close to factory specifications.

Part Condition and Installation Aspects

The offered connecting rod with piston is a used part, allowing for economical repair while maintaining the original design. Before installation, standard workshop verification is recommended – checking clearances, mating surfaces, and potential matching to a specific cylinder according to service procedures for M272 engines.

In terms of installation practice, it is important to maintain the correct tightening sequence, use appropriate torque values, and check for axial alignment so that the connecting rod and piston assembly operates stably across the full range of RPMs. This helps minimize the risk of vibrations, excessive bearing wear, or uneven crankshaft loading.

Mercedes Connecting Rods and Parts – Selection and Technical Knowledge

If you are looking for other parts from the Connecting Rods and Parts category dedicated to this brand, check out the Mercedes connecting rods and parts available in our store to select a complete solution for a specific engine.

When planning major engine repairs, it is also worth expanding your knowledge about the specific construction of units from different manufacturers. For a comparison of the operating characteristics and maintenance costs of modern diesels, you can refer to the guide material BMW N47 vs M57 / M57N / M57N2 – Ranking of Legendary Diesels, which shows how the aftermarket and parts availability affect the cost-effectiveness of repairs in different constructions.