Mercedes W204 W212 OM651 Diesel Engine Turbocharger Part Housing A6510902780

Mercedes W204 W212 OM651 Diesel Engine Turbocharger Part Housing is a component from the Turbochargers and parts category, designed for OM651 diesel units used in popular C-Class and E-Class models. The housing is a key component of the turbocharging system, responsible for the stable guidance of the exhaust gas stream and the proper operation of the turbine rotor in the diesel engine.

Specifications and technical data

• SKU: A6510902780-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510902780
• Substitutable numbers: A6510902780, A 651 090 27 80
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and role in the turbocharging system

The turbocharger housing in the OM651 Diesel engine is responsible for the precise guidance of exhaust gases and maintaining the correct flow geometry within the turbine. A properly selected housing ensures:

• stable operating conditions for the turbine rotor under various engine loads,
• appropriate boost pressure across the entire RPM range,
• temperature control and reduction of energy losses in the exhaust system. As a result, the power unit maintains predictable torque characteristics, which translates into smooth acceleration and proper cooperation with the diesel engine's electronic control system.

Technical characteristics and compatibility

The turbocharger housing has been designed specifically for the OM651 diesel engine family, which means it is matched to the factory architecture of the exhaust system and engine accessories. The housing construction is optimized for:

• resistance to high exhaust temperatures typical of diesel units,
• maintaining the tightness of connections with the manifold and other turbine components,
• maintaining the correct geometry of the flow channels. Such a fit allows for maintaining the factory operating parameters of the turbocharger without the need to modify other components.

Condition of the item and service application

The presented housing comes from the used Mercedes parts segment, which makes it an attractive solution for turbocharging system repairs when there is no need to replace the complete turbocharger. It can be used, among other situations, when:

• the original housing has cracked or suffered thermal deformation,
• damage to threads or mounting surfaces has occurred,
• it is necessary to rebuild the turbine using functional structural components. Using an original housing from disassembly allows for maintaining consistency with the factory design of the turbocharging system, which is particularly important in modern diesel engines with advanced electronic control.

Support with selection based on OEM numbers

Selecting the correct turbocharger housing for a specific version of the OM651 engine should always be based on OEM numbers and the manufacturer's catalog data. To minimize the risk of errors when shopping online, a practical guide describing the verification of components by part numbers will be helpful – you can find it in the article Shopping for parts online without risk – 5 ways to verify OEM numbers. This will make it easier for you to confirm the compatibility of the part with your vehicle.

Expansion of the turbocharging system in a Mercedes

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as turbine housings, hot-side components, or additional turbocharging system parts, check the available parts in the Mercedes Turbochargers and parts category.