Mercedes R W251 OM642 Automatic Gearbox 722902 722.902 A2512709200 WARRANTY

Listing details

The gearboxes are sold with a 90-day warranty! They were tested before removal and are in full working order.

Mercedes R W251 OM642 Automatic Gearbox 722902 722.902 A2512709200 WARRANTY is a factory transmission unit from the Automatic gearboxes category, designed to work with a diesel engine. This used, original construction ensures proper torque transfer, smooth gear shifting, and maintains the driving characteristics intended by the manufacturer. It is a solution for users looking for a technically matched component instead of costly repairs or remanufacturing.

Specifications and technical data

• SKU: A2512701901
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2512701901
• Substitutable numbers: A2512701901, A 251 270 19 01, A2512709200, A 251 270 92 00
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and technical characteristics

The presented automatic gearbox is designed to work with a Diesel power unit, which means appropriately selected gear ratios, durability of internal components, and operating characteristics adapted to high torque. The use of an automatic transmission allows for comfortable vehicle operation in both urban and extra-urban traffic, reducing driver strain and minimizing the risk of errors resulting from incorrect gear shifting.

The automatic design of the transmission ensures sequential gear control by the vehicle's control system, which translates into stable acceleration, predictable throttle response, and proper utilization of the diesel engine's RPM range. As a result, the drivetrain maintains parameters close to factory specifications, and the vehicle retains its proper dynamics and refinement.

Application in Mercedes vehicles

The gearbox belongs to the group of components dedicated to the Mercedes brand, which means full structural compatibility with the specific vehicle platform, including mounting points, connections to the engine, driveshaft, and control system. Using an original automatic transmission reduces the need for modifications, facilitates installation, and allows for compliance with factory service procedures.

In practice, this means that after proper verification of compatibility with the specific body and engine version, the gearbox can be used as a replacement for a damaged component, restoring the efficiency of the drivetrain without interfering with the vehicle's construction. This is particularly important for models equipped with extensive electronic systems, where the consistency of transmission parameters with the control software is crucial for trouble-free operation.

Benefits of choosing a used automatic gearbox

Choosing a used gearbox from the Automatic gearboxes category allows for a significant reduction in repair costs compared to purchasing a brand-new component or undergoing a full remanufacturing process. The original construction retains factory engineering solutions, which promotes durability and predictable performance during operation. For workshops and individual users, this means the possibility of restoring vehicle functionality while maintaining a reasonable service budget.

A used automatic transmission is a particularly attractive solution in situations where the damage to the current gearbox is extensive or involves high-cost individual components. Using a complete drivetrain assembly helps reduce vehicle downtime, simplifies the diagnostic process, and minimizes the risk of further failures resulting from partial repairs of a heavily worn component.

Installation and operational recommendations

Before installation, it is recommended to perform the full service procedure prescribed for automatic transmissions, including checking the gearbox cooling system, replacing the operating medium according to the vehicle manufacturer's recommendations, and verifying the tightness of connections. Proper bleeding of the system and adaptation of the gearbox in the vehicle (if required by the specific model) have a significant impact on the refinement and durability of the entire assembly.

To maximize the potential of a used transmission, it is worth paying attention to regular maintenance, including periodic oil and filter changes, checking for potential leaks, and observing the gearbox's behavior under various load conditions. This approach helps reduce the risk of unplanned downtime and extends the period of trouble-free operation.

Expert support and selecting the right gearbox

When choosing a used automatic gearbox for a specific vehicle model, it is worth considering compatibility, service history, and cost-effectiveness compared to remanufacturing. A detailed discussion of these issues, with a breakdown of manual and automatic transmissions, can be found in the article Used gearbox – when is it worth it and what you need to remember, which helps you make an informed purchasing decision and avoid common mistakes when selecting components from the secondary market.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Mercedes and need other elements from the same group, such as torque converters, control elements, or additional transmission components, check the available parts in the Mercedes automatic gearboxes category.