Mercedes R171 Petrol SLK 280 272942 Cylinder Head Right A2720103920 A2720161305

Mercedes R171 Benzyna SLK 280 272942 Right Cylinder Head A2720103920 is an original, used right-side cylinder head, designed for the gasoline engine in the R171 generation SLK 280 model. This is a solution for users seeking a factory engine component with preserved geometry and parameters consistent with the manufacturer's standards, enabling professional repair of the timing system and combustion chamber.

Specifications and technical data

• SKU: A2720103920
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2720103920
• Substitutable numbers: A 272 016 13 05, A2720161305, A2720103920, A 272 010 39 20
• Location on the vehicle: Right
• Fuel type: Petrol
• Part type: Cylinder Head
• Category: Cylinder Heads

Purpose and Engine Unit Compatibility

The presented cylinder head belongs to the Cylinder Heads category and is structurally prepared for operation with a V-engine gasoline unit, on the right side. It is responsible for the correct combustion process, chamber sealing, and stable mounting of timing components and accessories. Thanks to the preserved factory mounting points and flow channels, the component allows for the restoration of the engine unit's original operating characteristics without the need for engine block modifications.

Key Technical Features

The cylinder head was designed by Mercedes with precise fuel-air mixture guidance and effective heat dissipation from the combustion chamber in mind. The design includes:

• dedicated intake and exhaust ports optimized for flow in a gasoline engine,
• locations for valve seating, guides, and seats compliant with factory specifications,
• mating surfaces with the engine block prepared for further service machining (planing, leak testing),
• mounting points for timing components and accessories characteristic of the right side of the unit.

This configuration allows for maintaining proper compression, stable idle operation, and correct combustion progression across the entire RPM range.

Application in Engine Repairs and Reconditioning

A used cylinder head is a good choice in situations where thermal or mechanical damage, or cracking of the original right-side component has occurred. In workshop practice, such a component is used, among other things, for:

• repairs after gasoline unit overheating,
• reconditioning of the valve system and seals,
• restoring factory engine operating parameters after a timing system failure,
• comprehensive overhauls of the engine unit's upper section.

By preserving the original design, the cylinder head allows for the use of standard service procedures and workshop tools, which facilitates the mechanic's work and reduces the risk of fitting issues.

Benefits of Choosing an Original Mercedes Cylinder Head

Choosing an original component from the Cylinder Heads category ensures consistency with other engine components and predictable unit behavior after repair. The most important advantages include:

• factory geometry of ports and combustion chambers,
• compatibility with accessories and timing components intended for the right side of the engine,
• possibility of further machining and reconditioning according to manufacturer procedures,
• maintenance of operating characteristics typical for the gasoline SLK 280.

For the user, this means greater predictability of the repair outcome and easier future diagnostics, as operating parameters remain close to factory settings.

Expanding Repair Scope within the Mercedes Engine

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 cylinder heads, covers, or mounting elements, check the available parts in the Mercedes Cylinder Heads category.

To better understand the relationships between engine components and emission control systems, and to consciously plan repairs of gasoline and diesel units, it is worth reading the article EGR: What it is and why consider used EGR valves, which discusses the role of the exhaust gas recirculation system in modern engines.