Mercedes W204 W205 C207 W212 Camshaft Gear Sprocket OM651 A6510301813

Mercedes W204 W205 C207 W212 Camshaft Gear Sprocket OM651 is a precision timing system component designed for Diesel engines in popular Mercedes C-Class and E-Class models. It is responsible for stable power transmission to the camshaft, which ensures proper synchronization of valve operation and the entire engine. This solution is ideal for professional engine repairs where compliance with the manufacturer's factory specifications is crucial.

Specifications and technical data

• SKU: A6510301813
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510301813
• Substitutable numbers: A6510301813, A 651 030 18 13
• Fuel type: Diesel
• Part type: Sprocket
• Category: Sprockets

Purpose and role in the timing system

The presented camshaft gear sprocket is a component from the Sprockets group, responsible for the mechanical coupling of the camshaft with other drive components. In a Diesel engine, the precision of this component's operation has a direct impact on:

• accurate opening and closing of valves during the appropriate engine operating phases,
• idle stability and engine refinement,
• effective use of torque across the entire rev range.

The gear sprocket works with other timing components to ensure repeatable, mechanical synchronization, which is particularly important in modern OM651 units used in mid-size Mercedes vehicles.

Compatibility with OM651 Diesel engines

The gear sprocket has been designed to work with the OM651 family of diesel engines, widely used in Mercedes W204, W205, C207, and W212 models. By maintaining the factory tooth geometry and the correct profile for camshaft engagement, this component allows for:

• maintaining original timing operating parameters,
• reducing the risk of incorrect synchronization,
• maintaining factory performance and fuel consumption characteristics.

Such a fit is particularly important when servicing Diesel engines, where timing system operating tolerances are very demanding.

Product characteristics and application benefits

The camshaft gear sprocket in this configuration is an original Mercedes component, which means it maintains factory manufacturing standards and installation compatibility. The used nature of the part allows for an economical repair while maintaining compliance with OEM solutions. In practice, this translates into:

• secure fit to the camshaft seat and mating components,
• maintenance of proper tooth geometry and operational alignment,
• suitability for use in professional OM651 engine repairs.

For workshops and individual users, this means predictable timing system behavior after replacement and a reduction in the risk of valve synchronization issues.

Application in service practice

Replacing the camshaft gear sprocket is recommended in situations where signs of mechanical wear appear within the timing drive, such as noise, uneven engine operation, or signs of excessive wear on the teeth of mating components. Using an original gear sprocket in an OM651 Diesel engine allows for the restoration of proper camshaft cooperation with other components, which is important both after major repairs and during preventive maintenance of the power unit.

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 idler gears, drive gears, or other timing transmission elements, check the available parts in the Mercedes Sprockets category.

Additional technical support and seasonal preparation

When performing service work related to the timing system, it is worth considering the general condition of the power unit, especially in the context of operation in low temperatures. Practical tips on inspecting used components, planning replacements, and checking key sub-assemblies before the winter period can be found in the article Winter essentials: which used car parts are worth checking and replacing before the frost?. This will make it easier for you to plan the full scope of service work for your Mercedes with a Diesel engine.