Mercedes W177 H247 Crankshaft Pulley M282 A2820350600

Mercedes W177 H247 Crankshaft Pulley M282 is a precision component of the accessory drive system, designed for the M282 series petrol engines. It is responsible for the stable transfer of drive from the crankshaft to other components, which translates into smooth engine operation and proper interaction with elements from the Tensioners and pulleys group. Using a pre-owned component of this type allows for a technically sound and cost-effective repair of the drive system in modern Mercedes models.

Specifications and technical data

• SKU: A2820350600
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2820350600
• Substitutable numbers: A2820350600, A 282 035 06 00
• Fuel type: Petrol
• Category: Tensioners & Pulleys

Purpose and function of the crankshaft pulley

The crankshaft pulley in the M282 petrol engine plays a key role in transferring torque from the crankshaft to the engine accessories, working in conjunction with the belt and elements from the Tensioners and pulleys group. A properly selected pulley ensures:

• stable drive belt guidance at various rotational speeds,
• correct interaction with tensioners and guide pulleys,
• reduction of torsional vibrations transmitted to engine accessories,
• maintenance of the correct belt path geometry.

Proper selection of the pulley for a specific M282 engine variant is essential for maintaining the correct operation of the drive system and avoiding premature wear of the belt and cooperating pulleys.

Benefits of using an original Mercedes component

Using an original pulley dedicated to the M282 unit in W177 and H247 models allows for maintaining the factory parameters of the accessory drive system. The original component ensures:

• precise fit to the crankshaft and other drive elements,
• compliance with factory dimensional and material tolerances,
• correct interaction with the belt and tensioners,
• preservation of the petrol engine's operating characteristics as intended by the manufacturer.

This reduces the risk of belt slippage, noise, or uneven load on accessories, which is important for both the durability and the comfort of vehicle operation.

Installation and operational characteristics

The crankshaft pulley designed for the M282 petrol engine in W177 and H247 bodies is engineered as a component that works with a specific accessory drive configuration. When selecting and installing, it is worth paying attention to:

• compatibility with the engine type (petrol engine),
• correct seating on the crankshaft journal,
• cleanliness of the contact surface and absence of mechanical damage in the mounting area,
• checking the condition of the belt as well as the tensioners and pulleys.

Replacing the pulley is a good time to inspect the entire accessory drive path to avoid returning for service work in the near future. Consistency in the condition of the pulley, tensioners, and rollers has a direct impact on the engine's refinement and the durability of the entire system.

Used condition and practical application

The offered crankshaft pulley comes from a Mercedes vehicle and is a used part, which allows for lower repair costs while maintaining the manufacturer's original specifications. This type of solution is particularly attractive for intensively used cars, where a reasonable balance between cost and part quality is important.

For vehicles with the M282 petrol engine, using an original, used pulley is often chosen as an alternative to aftermarket replacements with uncertain parameters. This allows for maintaining the accessory drive operating characteristics intended by the manufacturer and limits the risk of problems resulting from inaccurate fitment.

Related system components and additional materials

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 belt tensioners, guide pulleys, or idler pulleys, check the available parts in the Mercedes Tensioners and pulleys category.

When working on the accessory drive, it is also worth paying attention to the condition of the charging system. To better assess when it is worth reaching for second-hand components, the following practical guide will be helpful: When is it worth replacing an alternator with a used one: a practical guide for drivers.

If you are interested in a broader approach to using second-hand parts in Mercedes-class vehicles, including newer designs with petrol engines, additional information can be found in the article on upgrading cars using aftermarket components: The second life of a youngtimer – how used car parts rejuvenate cars from the 1998–2012 model years.