Mercedes W205 X253 Turbo Turbocharger Part Housing Diesel OM651 54391014775

Mercedes W205 X253 Turbocharger Housing Turbo Diesel OM651 is a specialized component from the Turbochargers and Parts group, designed for diesel engines. This solution is for users who want to restore the proper operation of the boost system in a technically correct manner, while maintaining the factory characteristics of the engine unit.

Specifications and technical data

• SKU: A6510901586-6
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510901586
• Substitutable numbers: A6510901586, A 651 090 15 86, A6510901807, A 651 090 18 07, 54391014775
• Fuel type: Diesel
• Part type: Turbocharger
• Category: Turbos & Parts

Purpose and Function of the Turbocharger Housing

The turbocharger housing in the OM651 diesel engine is responsible for the stable flow of exhaust gases and intake air, as well as for the proper seating of the turbo core. A correctly selected housing allows for maintaining:

• the correct geometry of exhaust gas flow in the turbocharger,
• appropriate operating conditions for the rotor and bearings,
• consistency of boost parameters with the factory settings of the engine control unit.

Thanks to this, the boost system maintains stable pressure, and the engine unit retains predictable throttle response and proper running smoothness.

Compatibility with OM651 Diesel Engine

The presented housing is designed for OM651 Diesel units used in Mercedes W205 and X253 models. This means it is adapted to the exhaust and intake system design of these generations, as well as compatible with the factory mounting points and turbocharger connections.

Selecting a housing dedicated to a specific type of diesel engine reduces the risk of leaks, assembly stresses, and incorrect turbocharger positioning relative to the manifold and intake pipes.

Product Characteristics and Application Benefits

The turbocharger housing from this offer comes from a Mercedes vehicle and is a used aftermarket part. For many users, this represents a favorable compromise between repair cost and maintaining the original technical specifications of the boost system.

• Replication of factory geometry for exhaust and air channels.
• Possibility of using the existing turbocharger core when replacing only the housing.
• Reduction of repair costs compared to purchasing a complete new turbocharger.

For workshops specializing in diesel engine service, this is a practical solution for repairs where only the turbo housing is damaged, and other components remain functional.

Application in Mercedes W205 / X253 Boost System

In Mercedes W205 and X253 models with diesel engines, the turbocharger housing operates under demanding thermal and mechanical conditions. A correctly selected component:

• maintains the seal of connections with the manifold and intake pipes,
• ensures stable mounting of the turbocharger to the engine unit,
• allows for maintaining stock boost system operating parameters without modification.

This makes the repair predictable, and the risk of fitting issues or incorrect pipe routing is minimized.

Part Identification and Matching

For correct turbocharger housing selection, it is advisable to use the OEM part number and available interchangeable numbers, which allow verification of compatibility with a specific engine and turbocharger version. Additionally, the SKU stock code is helpful in the identification process, facilitating order processing for both the store and the workshop.

This approach reduces the risk of purchasing an incorrect housing variant, which is particularly important given the structural differences between various diesel engine configurations.

Repair Economics and Environmental Aspect

Choosing a used turbocharger housing is not only economical but also a real support for the circular economy. Using proven parts from dismantling reduces the demand for new part production and limits workshop waste. If you want to better understand how such decisions affect the environment and your service budget, read the article: Circular Economy in Your Garage – How Choosing Used Dismantled Parts Truly Supports Environmental Protection and Your Wallet?.

If you are planning a comprehensive engine area repair or upgrade for your Mercedes and need other parts from the same group, such as turbocharger bodies, mounting elements, or boost system components, check the available parts in the Mercedes Turbochargers and Parts category.