Mercedes-Benz W169 A150 W245 B160 Petrol M266 Crankshaft Pulley A2660320204

Mercedes-Benz W169 A150 W245 B160 Petrol M266 Crankshaft Pulley is a specialized powertrain component designed for Mercedes petrol engines. It is responsible for the stable transfer of drive from the crankshaft to the engine accessories, which has a direct impact on the engine's operating smoothness and durability. Thanks to its factory-matched design for specific models, it ensures precise fitment and predictable performance in daily operation.

Specifications and technical data

• SKU: A2660320204
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2660320204
• Substitutable numbers: A2660320204, A 266 032 02 04, KZ
• Location on the vehicle: Rear
• Fuel type: Petrol
• Category: Crankshafts

Purpose and compatibility with Mercedes models

The presented crankshaft pulley has been designed for the construction of petrol engines used in Mercedes A-Class W169 and B-Class W245 models. The component works with the crankshaft, ensuring proper guidance of the belt that drives engine accessories, which is crucial for the correct operation of the alternator, pump, and other components.

Its location in the rear part of the powertrain means the pulley operates under demanding rotational conditions, which is why its geometry and material must comply with the manufacturer's factory specifications. Using an original component from the Crankshafts group allows for maintaining the operating parameters intended by Mercedes engineers.

Technical and functional characteristics

The crankshaft pulley in this application is responsible for:

• stable transfer of torque from the crankshaft to engine accessories,
• maintaining proper guidance of the drive belt,
• reducing unwanted torsional vibrations in the powertrain,
• cooperation with other components of the crankshaft assembly.

Thanks to a design that meets Mercedes requirements, the component maintains proper rigidity and durability within the typical RPM ranges of a petrol engine. Proper dimensional matching facilitates installation and reduces the risk of misalignment, which is essential for the service life of the belt and accessory bearings.

Condition, origin, and benefits of use

The offered crankshaft pulley is a used part, sourced from a dismantled Mercedes vehicle. This type of component, when in proper working condition, represents a reasonable compromise between cost and quality, allowing for the maintenance of the original powertrain specification without the need to invest in expensive aftermarket replacements of unknown origin.

Using an original pulley in a petrol engine helps maintain predictable loads on the crankshaft and accessories, which can translate into smoother engine operation and a lower risk of premature wear of adjacent components. This solution is particularly beneficial for servicing vehicles used on a daily basis, where both reliability and repair economy are important.

Professional installation and operation

Due to the importance of the pulley for crankshaft operation, installation by an experienced service center using appropriate tools and following the manufacturer's procedures is recommended. Proper tightening, checking for alignment, and inspecting the condition of the drive belt are key steps that affect the safety and durability of the entire system.

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 connecting rods, bearings, or additional parts that work with the crankshaft, check the available parts in the Mercedes Crankshafts category.

More about the advantages of original used parts

When choosing components for the powertrain, it is worth considering the specifics of the Mercedes brand and the benefits of using original parts from dismantling. To better understand how to combine durability, driving comfort, and reasonable service costs, read the article Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?, which discusses this topic in detail in the context of daily operation.