Mercedes W176 W246 C117 Engine Cylinder Head Rocker M270 Petrol A2700109902

Description

Mercedes W176 W246 C117 Engine Cylinder Head Rocker M270 Petrol is an original part from the Cylinder Heads group, designed for M270 petrol-powered engines. This used cylinder head provides a solid foundation for professional engine repair or rebuilding, ensuring proper geometry and stable operating conditions for the combustion system.

Specifications and technical data

• SKU: A2700109902
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2700109902
• Substitutable numbers: A2700109902, A 270 010 99 02
• Fuel type: Petrol
• Category: Cylinder Heads

Purpose and compatibility with the M270 engine

The presented cylinder head is designed specifically for the M270 engine in Mercedes W176, W246, and C117 series petrol vehicles. The design of the head is tailored to the characteristics of this unit – from the intake and exhaust port layout and water jacket routing to the placement of auxiliary components.

Thanks to its factory origin, key geometric parameters are maintained, which facilitates proper sealing of the combustion chamber, correct valve operation, and stable performance of the entire timing system. This is particularly important for repairs of petrol engines, where the precision of the cylinder head has a direct impact on engine refinement and performance.

Construction and technical properties of the cylinder head

The cylinder head in the M270 engine serves as a support for valves, guides, seats, and timing control components. It is also responsible for the correct flow of the fuel-air mixture and the exhaust gas discharge. In this design, the following are particularly important:

• precisely shaped intake and exhaust ports,
• properly designed combustion chambers for a petrol unit,
• stable mating surfaces for the engine block and manifolds,
• factory-specified mounting points for auxiliary equipment.

The original head from the Cylinder Heads group ensures that factory tolerances are maintained, which is crucial when installing new gaskets, head bolts, and timing components. This facilitates the mechanic’s work and reduces the risk of leaks or improper clamping force.

Benefits of using an original used cylinder head

Using an original, used cylinder head for the M270 engine allows for an economical yet technically sound repair of the power unit. Compared to aftermarket replacements of unknown origin, the factory part provides:

• retention of the flow characteristics designed by the manufacturer,
• proper fitment to the engine block and auxiliary components,
• the possibility of further machining (resurfacing, valve seat regeneration) in accordance with service standards.

For workshops specializing in the Mercedes brand, this is a practical solution for petrol engine overhauls, allowing for the maintenance of the structural integrity of the entire power unit.

Practical service application

The cylinder head for the M270 engine is suitable for both comprehensive engine rebuilding and repairs resulting from overheating, head gasket failure, or local cracks. After appropriate workshop preparation (leak testing, resurfacing, valve seat verification), it can be reused in a professional repair.

Thanks to the preservation of the factory design, it is possible to seamlessly integrate the head with the existing fuel, ignition, and cooling systems, which reduces assembly time and facilitates post-repair diagnostics. This is a particularly beneficial solution when servicing modern petrol engines, where component precision is vital for durability.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other items from the same group, such as other cylinder heads, cylinder head covers, or related mounting components, check the available parts in the Mercedes Cylinder Heads category.