Mercedes W212 Fuel Tank Diesel OM642 OM651 80L Bare Tank A2124707701

Mercedes W212 Fuel Tank Diesel OM642 OM651 80L Bare Tank is an original fuel system component designed for OM642 and OM651 diesel engines. It ensures stable fuel storage, proper fuel supply to the power unit, and is optimized for the W212 chassis design. With an 80-liter capacity, it provides a solid foundation for vehicles covering long distances while maintaining factory fuel system performance parameters.

Specifications and technical data

• SKU: A2124707701-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2124707701
• Substitutable numbers: A2124707701, A 212 470 77 01, BG
• Weight: 150
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and compatibility

The Mercedes W212 Fuel Tank Diesel OM642 OM651 80L Bare Tank has been designed to work with OM642 and OM651 engines, which guarantees a proper fit for the factory fuel system and body structure. The bare tank design allows for the transfer of accessories from the old unit, which facilitates maintaining the vehicle's original configuration.

The element belongs to the Fuel tanks and filler pipes group, responsible for the safe storage of diesel fuel, proper venting, and interaction with the injection system. Thanks to the preservation of OEM geometry, the tank works with factory mounts, lines, and fuel level sensors.

Construction and performance parameters

The tank is adapted for use with Diesel fuel, which means appropriate selection of material, chamber shape, and internal ribbing to limit fuel sloshing during acceleration, braking, and cornering. The 80-liter capacity ensures a comfortable range, especially in cars used on long routes and in fleet conditions.

The properly selected total weight of the tank promotes mounting stability and resistance to operational loads, such as vibrations, temperature changes, or local stresses in the chassis zone. The bare tank design allows for the use of existing components, such as the fuel pump, sensors, and lines, which reduces repair costs.

Condition, origin, and advantages of OEM application

The offered item is an original Mercedes fuel tank in used condition, which in practice means maintaining factory geometry, mounting points, and compliance with the manufacturer's documentation. Compared to uncertain replacements, using an OEM component minimizes the risk of fitment issues, leaks, or improper interaction with the injection system.

Choosing a used OEM tank is particularly beneficial for post-accident repairs, mechanical damage, or corrosion of the old element. This allows for restoring the proper operation of the fuel system while maintaining reasonable service costs, without sacrificing factory design solutions.

Practical installation and maintenance tips

When replacing the fuel tank, it is recommended to thoroughly check the condition of the lines, seals, and filler pipe, as well as to check for leaks after installation. It is also worth paying attention to the cleanliness of the tank interior before transferring the accessories to avoid introducing contaminants into the injection system.

For users who want to better understand the operation of the entire fuel supply system, diagnostics, and component selection by OEM numbers, a guide describing injectors, pumps, and the fuel tank will be helpful – details can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Application within the Mercedes Fuel tanks and filler pipes category

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 filler pipes, vent lines, or additional mounting elements, check the available parts in the Mercedes Fuel tanks and filler pipes category.