Crankcase Breather Hose Mercedes Sprinter W906 OM651 Engine Pipe A6510101282

Crankcase Breather Hose Mercedes Sprinter W906 OM651 Engine Pipe is a specialized component of the crankcase ventilation system, designed for OM651 diesel units in Mercedes W906 series models. This component from the Lines, hoses, and pipes group ensures controlled oil vapor flow, supporting stable diesel engine operation and reducing the risk of unwanted leaks.

Specifications and technical data

• SKU: A6510101282
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510101282
• Substitutable numbers: A6510101282, A 651 010 12 82
• Location on the vehicle: Rear
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the breather system

The described air breather pipe operates in the rear area of the power unit, where it is responsible for discharging gases from the crankcase into the intake system. A properly selected and airtight hose in this location:

• stabilizes pressure inside the diesel engine,
• limits the passage of oil vapors into the engine compartment,
• supports cleaner operation of the intake system and turbocharger,
• reduces the risk of leaks and seepage at the rear of the power unit.

For OM651 engines, using the correct breather hose is crucial for the durability of seals, proper operation of the exhaust gas recirculation system, and maintaining stable performance parameters across the entire load range.

Construction and fitment for the OM651 engine

The pipe is part of a system of lines and hoses that create a coherent gas flow path in the diesel engine. The design is profiled for specific routing in the engine bay, which facilitates installation and minimizes stress during engine operation.

Thanks to its factory-intended design for the Mercedes W906 series with the OM651 engine, the hose maintains the correct connection geometry, which allows for:

• secure seating on the breather system ports,
• maintaining connection tightness at varying diesel operating temperatures,
• reducing vibrations and micro-movements that could lead to cracks or leaks.

Performance characteristics of the used component

The offered hose is a used component, which in practice means it comes from disassembly and has been verified for further operational suitability. This type of part is a good solution in situations where:

• the existing breather hose has cracked, chafed, or deformed,
• there are oil or oil mist leaks in the rear part of the engine,
• an economical repair of the ventilation system is necessary while maintaining compliance with the factory design.

Choosing a used original component allows for maintaining the proper fit for the OM651 unit while reducing service costs compared to new replacements.

Benefits of a properly functioning breather pipe in a diesel engine

A functional breather hose in a diesel engine translates into a number of practical operational benefits:

• Stable diesel engine operation – even crankcase ventilation reduces pressure fluctuations and supports proper lubrication.
• Cleaner intake system – properly routed oil vapors reduce the risk of excessive carbon deposit buildup in the manifold and intake components.
• Better sealing of the rear part of the unit – reducing oil leaks in the rear engine area facilitates diagnostics and service.
• Higher refinement – proper gas discharge contributes to the smooth operation of the OM651 unit across the entire RPM range.

Complementary Lines, hoses, and pipes for 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 vacuum lines, cooling system hoses, or fuel system pipes, check the available parts in the Mercedes lines, hoses, and pipes category.

Additional technical information and tips

When replacing the breather pipe in a diesel engine, it is worth paying attention to the condition of other hoses and cooperating elements within the OM651 unit. Checking for leaks after installation, ensuring correct routing of the hose in the rear part of the engine, and avoiding excessive twisting or bending of the hose will help extend its service life.

If you are interested in a broader context of exhaust system operation and gas flow in modern units, including Mercedes vehicles, additional information can be found in the article Performance exhaust system: used manifolds and sports catalytic converters on the road, which discusses practical aspects of selecting and operating components that work with diesel engines.