Mercedes C180 M274 Petrol Engine Piston Connecting Rod A2740302317

Mercedes C180 M274 Petrol Engine Piston Connecting Rod is an original component from the Pistons and rings group, designed for petrol-powered engines. This used OEM component ensures proper force transmission within the engine, maintaining factory operating parameters and stable engine performance.

Specifications and technical data

• SKU: A2740302317
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2740302317
• Substitutable numbers: A2740302317, A 274 030 23 17
• Fuel type: Petrol
• Category: Pistons & Rings

Purpose and function in the M274 engine

The presented piston with connecting rod operates within the cylinder area, responsible for converting the energy of petrol combustion into the rotational motion of the crankshaft. In the M274 engine, this component works with the crank-piston system, ensuring proper operating geometry, combustion chamber tightness, and stable piston guidance in the cylinder sleeve.

By maintaining the original OEM design, the component preserves correct dimensional relationships relative to the cylinder, piston pin, and connecting rod bearings, which is crucial for uniform crankshaft loading and reducing vibrations in the power unit.

Benefits of using an original piston with connecting rod

Using an original piston with connecting rod in the M274 petrol engine allows for maintaining the consistency of the entire crank-piston system. In practice, this means:

• proper fitment to the cylinder diameter and piston pin,
• appropriate cooperation with piston rings from the Pistons and rings group,
• maintenance of factory engine operating characteristics under various loads,
• reduced risk of excessive vibrations and mechanical noise.

For workshops and users, this means more predictable assembly and a lower risk of operational issues after engine repair.

Operating characteristics in a petrol engine

The element has been designed to work with a system powered by petrol, which translates into an appropriately selected mass, piston crown shape, and operating characteristics at higher RPM ranges. In petrol engines, precise piston guidance and stable force transmission to the connecting rod are essential to maintain smooth, dynamic throttle response and reduce wear on mating surfaces.

The original design ensures proper lubrication of the pin zone and connecting rod journal, which promotes a longer service life of the entire crank-piston system while maintaining appropriate service intervals and oil quality.

Application in engine service and repairs

This piston with connecting rod is particularly useful for repairs following seizure, mechanical cylinder damage, or the need to replace individual components of the crank-piston system. The used OEM component allows for economical engine rebuilding while maintaining factory specifications, which is important both for workshops specializing in the Mercedes brand and for users who value compliance with the original design.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as pistons, rings, or complete repair kits, check the available parts in the Mercedes Pistons and rings category.

Additional technical support

When planning major service work, it is also worth taking care of systems that cooperate with the engine, such as the cooling system or air conditioning, which affect the overall durability of the engine and driving comfort. To better plan the scope of maintenance and select the appropriate OEM components, you can use the practical tips contained in the article Air conditioning and heating – part selection and maintenance for year-round comfort.