Mercedes W251 Fuel Tank Diesel OM642 80L Complete Tank Container A2514702101

Mercedes W251 Fuel Tank Diesel OM642 80L Complete Tank Container is a factory-original fuel system component designed for Mercedes vehicles equipped with the OM642 diesel engine. This complete 80-liter fuel tank ensures a stable fuel supply to the powertrain, and thanks to its design compliant with manufacturer requirements, it serves as a reliable foundation for professional repair or replacement. This used component allows for an economical yet technically correct restoration of the fuel system.

Specifications and technical data

• SKU: A2514702101
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2514702101
• Substitutable numbers: A2514702101, A 251 470 21 01, A 251 470 01 90, A2514700190, A 251 470 02 94, A2514700294
• Weight: 150
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and role in the fuel system

The described fuel tank is part of the Fuel tanks and filler pipes category, responsible for the safe storage of diesel fuel and its stable delivery to other system components. In vehicles with the OM642 engine, a correctly selected tank is crucial for:

• maintaining the appropriate fuel level under varying loads and speeds,
• ensuring proper supply to the pump and injectors,
• reducing the risk of air entering the system when fuel levels are low.

Thanks to its design tailored to the specific Mercedes W251 platform, the tank works with factory equipment, mounts, and fuel lines, which facilitates installation and subsequent operation.

Compatibility and OEM identification

The element was designed as an original part for the Mercedes brand, which translates into compatibility with factory mounting points and fuel line routing. Identification via the OEM part number and available interchangeable numbers allows for precise matching of the tank to the specific body version and powertrain configuration.

This approach minimizes the risk of installation issues, leaks, or collisions with other chassis components. For workshops and service centers, this is particularly important when planning accident repairs or replacements resulting from corrosion or mechanical damage.

Performance and construction parameters

The tank is prepared for use with Diesel fuel, meaning it is adapted to the properties of diesel oil and the requirements of injection systems used in OM642 engines. The 80-liter capacity ensures an adequate vehicle range while allowing for convenient refueling planning in both daily and fleet operations.

The appropriately selected weight of the construction results from the materials and reinforcements used, which must withstand the loads resulting from a full fuel load, body vibrations, and suspension operation. The tank is adapted to work with factory mounting hardware, which facilitates its correct seating in the vehicle.

Condition, origin, and service application

The product is offered as used, which allows for significant repair cost savings while maintaining compliance with the original manufacturer's specifications. For workshops specializing in the Mercedes brand and private users, this is a practical solution in situations where a new part is difficult to obtain or economically unjustified.

Thanks to the SKU designation, quick product identification in the store system is possible, and the link to Fuel tanks and filler pipes makes it easier to complete other elements necessary for full fuel system maintenance, such as lines, mounts, or filler components.

Technical support and additional information

When selecting a fuel tank for a specific Mercedes W251 version with an OM642 engine, it is worth paying attention to the fuel system configuration, line routing, and equipment requirements. A detailed discussion of operating principles, diagnostics, and maintenance can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which helps to better plan repairs and subsequent service.

If you are planning a comprehensive repair or upgrade of the fuel system area in your Mercedes and need other elements from the same group, such as supply lines, filler components, or tank mounts, check the available parts in the Mercedes fuel tanks and filler pipes category.

Additional practical tips on the safe selection of aftermarket components, including fuel system parts, can be found in the guide Safe purchase of used car parts online – a step-by-step guide, which can be helpful for both individual users and professional service centers.