Mercedes W176 W205 W212 W253 Engine Balance Shaft Housing OM651 A6510301372

Mercedes W176 W205 W212 W253 Engine Balance Shaft Housing OM651 is a precision assembly designed for the OM651 engine powertrain, used in popular Mercedes A-Class, C-Class, E-Class, and GLC models. This component is responsible for balancing the crankshaft operation, reducing torsional vibrations, and improving the refinement of the power unit, which translates into higher driving comfort and more stable loading of other sub-assemblies.

Specifications and technical data

• SKU: A6510301372-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510301372
• Substitutable numbers: A6510301372, A 651 030 13 72, A6510130436, A 651 013 04 36
• Category: Crankshafts

Purpose and function in the OM651 engine

The balance shafts with housing in this set work in conjunction with the crankshaft, compensating for the inertial forces generated by the movement of the pistons and connecting rods. In practice, this means:

• reduction of vibrations transmitted to the engine block and body,
• more uniform operation of the power unit across the entire rev range,
• relieving the load on crankshaft bearings and auxiliary components,
• more stable operating conditions for the lubrication and timing systems. For the OM651 engine, widely used in the Mercedes range, properly functioning balance shafts are crucial for maintaining smooth, predictable operating characteristics and reducing noise and vibration in the cabin.

Compatibility with Mercedes W176, W205, W212, W253 models

The offered balance shaft assembly with housing has been designed to work with the OM651 unit mounted in W176, W205, W212, and W253 bodies. As a result, it is a solution dedicated to popular compact, mid-size, and SUV models, where it is particularly important to maintain proper engine refinement while ensuring high durability of the crank-piston system. Selecting the right component for a specific vehicle version is facilitated by the presence of the original OEM part number and associated interchangeable numbers, which allows for precise identification in service catalogs and parts selection systems.

Characteristics of the Crankshafts category

The presented balance shaft assembly with housing belongs to the Crankshafts category, which is a group of components responsible for transferring force from the pistons to the powertrain and for stabilizing engine operation. This group includes, among others:

• crankshafts with main and connecting rod journals,
• balance shaft assemblies,
• main bearing housings and brackets,
• components interacting with the lubrication system in the crankshaft area. Replacement or regeneration of elements from this group has a direct impact on the durability of the power unit, vibration levels, and vehicle operational safety, which is why choosing the right OEM component for a Mercedes is significant from both a service and economic perspective.

Condition, origin, and advantages of using an OEM used part

The offered element comes from the Mercedes brand and is classified as a used part. This means that we are dealing with an original OEM component that retains the factory geometry, fitment, and material characteristics specified by the vehicle manufacturer. In practice, this translates into:

• secure fitment with the OM651 engine block and interacting crankshaft system components,
• compliance with factory assembly tolerances,
• suitability for use during major or partial engine overhauls. Choosing a used OEM part in this area is often a beneficial compromise between cost and quality, especially in the case of premium cars, where original components are characterized by high manufacturing precision and predictable behavior over a long period of operation.

Support with selection and knowledge expansion

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as main shafts, bearing assemblies, or additional sub-assemblies interacting with the crankshaft system, check the available parts in the Mercedes Crankshafts category. For users interested in a broader market context and informed selection of components for premium cars, we recommend an article describing current trends and the benefits of using original second-hand elements: Crisis in the new parts market? Why used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend in 2026.

Summary

Mercedes W176 W205 W212 W253 Engine Balance Shaft Housing OM651 is a technically advanced element from the Crankshafts group, intended for the OM651 engine in popular Mercedes models. Using an original balance shaft assembly allows for restoring the proper refinement of the power unit, reducing vibrations, and ensuring stable operating conditions for other sub-assemblies, which is particularly important during professional repairs and engine overhauls in premium vehicles.