Mercedes W907 Oil Sump Pan Engine Lower Part OM654 Diesel A6540142801

Mercedes W907 Oil Sump Pan Engine Lower Part OM654 Diesel is an original lubrication system component designed for OM654 diesel engines used in modern Mercedes W907 series vans. This lower part of the oil sump ensures stable engine oil management, supports proper cooling and lubrication, and helps maintain the tightness of the entire system. Thanks to its factory origin and precise fit to the specific engine design, it represents a safe service solution for repairs and overhauls of diesel units.

Specifications and technical data

• SKU: A6540142801
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6540142801
• Substitutable numbers: A6540142801, A 654 014 28 01
• Fuel type: Diesel
• Part type: Oil Sump
• Category: Oil Sumps

Purpose and function in the OM654 engine

The lower oil sump in the OM654 diesel engine is responsible for collecting oil, ensuring its smooth return from the upper parts of the unit, and stabilizing the level under various loads and engine speeds. In the case of the Mercedes W907, this component is matched to the specific geometry of the engine block, crankshaft assembly, and oil channels, which translates into proper oil pressure and circulation throughout the entire diesel engine.

A properly designed lower oil sump reduces oil foaming, minimizes the risk of temporary lubrication shortages during sudden braking or acceleration, and supports heat dissipation from the power unit. This is particularly important in commercial vehicles, where the engine often operates under high load for extended periods.

Benefits of using an original Mercedes oil sump

Using an original oil sump from the Oil sumps group for the Mercedes W907 allows you to maintain the factory operating parameters of the OM654 engine. Key advantages of this solution include:

• precise fit to the engine block and diesel lubrication system,
• maintenance of the oil capacity designed by the manufacturer,
• proper cooperation with oil level and temperature sensors (if present in the specific configuration),
• appropriately shaped drainage zones and baffles that limit oil movement during dynamic driving,
• compatibility with factory mounting points and seals.

As a result, after replacing the oil sump, there is no need for structural compromises or adaptations, and the engine maintains stable operating conditions across the full load range.

Characteristics of the used component

The offered oil sump is a used component, sourced from dismantling, which provides a reasonable compromise between repair costs and maintaining the original manufacturer quality. This type of part is a good choice for:

• repairs after mechanical damage (e.g., hitting an obstacle from under the vehicle),
• engine overhauls when the existing sump is deformed or corroded,
• fleet service, where an economical but technically correct replacement of components is essential.

The used component allows for cost reduction while maintaining factory fitment for the OM654 engine and the Mercedes W907 design, which is particularly important in vehicles used intensively in transport and services.

Application in diesel vehicles

Diesel engines require a stable lubrication system that is resistant to long-term loads and frequent operation in the high torque range. The lower oil sump dedicated to the OM654 unit in the Mercedes W907 was designed specifically with the characteristics of diesel operation in mind – from cold starts, through city driving, to long routes with a full load.

A properly selected oil sump helps maintain the correct oil level, supports pressure stability in the system, and reduces the risk of the unit overheating. This translates into the longevity of components such as the crankshaft, bearings, camshafts, or the turbocharger, as well as the overall reliability of the diesel engine in daily operation.

Support with selection and related components

When replacing the oil sump in a Mercedes W907, it is worth paying attention to the condition of seals, mounting bolts, and any accompanying elements in the lubrication system. Selecting the right part for a specific version of the OM654 engine is facilitated by the manufacturer's markings and assignment to the Oil sumps category, which allows for consistency with service documentation.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as other sumps, covers, or mounting elements, check the available parts in the Mercedes Oil sumps category.

If you are considering a wider range of repairs using parts from dismantling and want to better understand how used components can affect the appearance and durability of the vehicle, take a look at our guide: Replacing body parts with used ones – can bodywork parts from dismantling look like new?.