Mercedes W264 OM651 Dual Twin Mass Flywheel Gearbox Automatic DMF A6510303505

Mercedes W264 OM651 Dual Twin Mass Flywheel Gearbox Automatic DMF is a specialized drivetrain component designed for diesel engines paired with automatic transmissions. Thanks to its dual-mass design, it effectively reduces torsional vibrations, improving the refinement of the power unit and driving comfort. This solution helps relieve the automatic transmission and ensures smoother, stable torque transfer.

Specifications and technical data

• SKU: A6510303505
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510303505
• Substitutable numbers: A6510303505, A 651 030 35 05
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Flywheels & Flexplates

Purpose and technical compatibility

The presented dual-mass flywheel has been designed for OM651 family diesel engines used in Mercedes vehicles with the W264 designation, in a configuration with an automatic transmission. The DMF design is adapted to the high-torque characteristics of the diesel engine, allowing for effective damping of impulses generated during combustion and reducing dynamic loads in the drivetrain.

Characteristics of the dual-mass design

The dual-mass flywheel in this model consists of two masses working together, connected by a system of springs and damping elements. This solution enables:

• reduction of torsional vibration transmission from the crankshaft to the automatic transmission,
• limitation of noise and vibrations felt in the cabin,
• more uniform loading of transmission components,
• increased durability of cooperating elements in the drivetrain.

Thanks to precisely selected damping parameters, the dual-mass flywheel supports smooth starting, gear shifting, and stable engine operation at low RPMs, which is particularly important in modern diesel units.

Cooperation with diesel engines and automatic transmissions

In a configuration with a diesel engine, the dual-mass flywheel plays a key role in compensating for the low-frequency vibrations characteristic of this unit. When combined with an automatic transmission, it ensures:

• smoother gear shifting without sudden jerks,
• better protection of the torque converter and control elements,
• stable system operation under loads typical for city and highway driving.

A drivetrain configured in this way translates into higher vehicle comfort and more predictable car behavior under various operating conditions.

Professional selection by part numbers and parameters

The flywheel should always be selected based on the vehicle's technical data and manufacturer markings, taking into account the engine type, fuel type, and transmission type. In this case, a diesel unit and an automatic transmission are used, which determines specific requirements regarding damping characteristics and durability. Correct selection of the component helps avoid compatibility issues, excessive vibrations, or premature wear of cooperating components.

Mercedes flywheels and gears – drivetrain expansion

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 additional flywheels, gears, or cooperating transmission elements, check the available parts in the Mercedes flywheels and gears category.

Used condition and cost-effectiveness

The offered element comes from the used parts segment, which allows for a significant reduction in repair costs compared to purchasing a new component, while maintaining the manufacturer's original specifications. For many users of vehicles with diesel engines, this is a reasonable compromise between quality and budget, especially in the case of advanced drivetrain elements such as a dual-mass flywheel.

More about the use of used parts in tuning and upgrades

If you are considering a broader upgrade of your car and want to consciously combine consumables with performance-enhancing components, it is worth familiarizing yourself with practical tips regarding the selection of components from the secondary market. A detailed discussion of this topic can be found in the article The best used parts for tuning your car, which shows how to effectively use used elements in modification projects.