BMW 7 Series E65 E66 N62 N73 Petrol Engine Alternator Belt Pulley 7515280

BMW 7 Series E65 E66 N62 N73 Petrol Engine Alternator Belt Pulley for N62 and N73 petrol engines is a precision component of the accessory drive system, designed specifically for Petrol units in the luxury 7 Series. The original BMW design ensures proper alternator belt drive transmission, stable operation of engine accessories, and compliance with the manufacturer's factory requirements. It is a practical solution for users who want to maintain consistency with the vehicle's factory specifications.

Specifications and technical data

• SKU: 7515280
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7515280
• Fuel type: Petrol
• Category: Pulleys

Purpose and compatibility

The presented alternator belt pulley is dedicated to BMW 7 Series E65/E66 models with N62 and N73 petrol engines. The component operates in the accessory belt drive system, responsible for effectively transferring torque from the crankshaft to the alternator. Thanks to a design that meets BMW's factory standards, the correct belt routing geometry is maintained, which reduces the risk of excessive wear and unwanted vibrations.

Technical characteristics of the pulley

The pulley belongs to the Pulleys category and is a component of the accessory drive system in petrol engines. It has been designed to operate in the demanding thermal and mechanical conditions typical of Petrol units in the BMW 7 Series. A properly selected working profile works with the multi-ribbed belt, ensuring stable contact and reducing slippage during sudden changes in alternator load.

The original BMW origin means that the correct dimensional tolerances are maintained, which translates into proper alignment relative to other pulleys in the system and compatibility with factory tensioners and guide rollers. This is particularly important in N62 and N73 engines, where the precision of belt routing affects the overall refinement of the entire accessory system.

Application in N62 and N73 petrol engines

In N62 and N73 units, the alternator pulley operates in the accessory drive system responsible for the vehicle's electrical power supply and the stable operation of onboard systems. Proper selection of this component is important for:

• maintaining the correct alternator belt tension,
• reducing noise and vibrations in the front engine area,
• maintaining adequate battery charging efficiency,
• reducing the risk of damage to the alternator and other accessory drive components.

By using an original pulley designed for petrol engines, the user maintains consistency with the factory configuration of the powertrain, which is important both in daily operation and during more advanced mechanical modifications.

Condition, origin, and benefits of choosing a used part

The offered component comes from the group of used BMW components, which allows for combining reasonable cost with the preservation of the manufacturer's original specifications. For many 7 Series E65/E66 users, this is an effective way to restore the efficiency of the alternator drive system without having to resort to replacements with uncertain parameters. Choosing an original pulley from dismantling is particularly attractive for restoration projects and OEM+ type modifications.

If you are interested in a broader context of using used components in vehicle modernization and personalization projects, it is worth reading an article describing a practical approach to tuning based on parts from dismantling: The best used parts for tuning your car. This is a good supplement to your knowledge when planning further work on your BMW.

Expanding the BMW accessory drive system

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other components from the same group, such as additional drive pulleys, guide rollers, or elements working with the alternator belt, check the available parts in the BMW Pulleys category.

Summary

BMW 7 Series E65 E66 N62 N73 Petrol Engine Alternator Belt Pulley is a solution for users who expect compliance with factory specifications and stable operation of the charging system. The original BMW design, matched to Petrol units, supports proper belt routing, reduces unwanted vibrations, and helps maintain high engine refinement. It is a functional choice both for standard maintenance replacement and for more advanced service or tuning projects based on OEM components.