Crankshaft Reductor Wheel BMW E60 E81 E87 E90 N47 Engine Disc 7797492

BMW E81 E87N E90 Mini R58 R59 Crankshaft Sensor Wheel is a precise engine timing component designed for select BMW and Mini models. It ensures stable cooperation between the crankshaft position sensor and the control electronics, which translates to reliable engine starting and smooth engine operation. A used component from the crankshafts category is a sensible choice for drivers seeking a proven yet economical service solution.

Specifications and technical data

• SKU: 7797492
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7797492
• Substitutable numbers: 11147797492, 7797492, 11147802601, 7802601, 11148605104, 8605104
• Category: Crankshafts

Purpose and Role in the Crankshaft System

The crankshaft sensor wheel in BMW E81, E87N, E90, and Mini R58 and R59 models works with the electronic position sensor, generating a reference signal for the engine control unit. A correctly selected element of this class allows for:

• stable ignition and fuel injection synchronization,
• smooth idle speed,
• correct throttle response across the entire RPM range,
• consistent operation with the factory control unit software.

Thanks to this, replacing a worn or damaged wheel with an original BMW part helps eliminate problems with starting, jerking, or occasional engine stalling.

Original Origin and Interchangeable Numbers

The presented crankshaft sensor wheel comes from the BMW OE line, meaning it retains factory manufacturing and fitment parameters. The element has a dedicated OEM part number and assigned interchangeable numbers, making it easy to verify its compatibility with a specific engine and vehicle year. The presence of multiple reference numbers simplifies selection in case of upgrades or changes introduced by the manufacturer during the production cycle.

Category: BMW Crankshafts – Selection and Compatibility

The crankshaft sensor wheel belongs to the crankshafts category, which includes components directly related to engine mechanics and its synchronization. When selecting this type of part, it is crucial to rely on:

• vehicle make (BMW / Mini from the BMW Group),
• OEM part number,
• interchangeable numbering assigned by the manufacturer.

If you need other elements from the same group, such as additional wheels, sensor-related components, or crankshaft system components, check the BMW crankshafts available in our store to select compatible solutions for your engine.

Condition, User Benefits, and Service Application

The offered crankshaft sensor wheel is a used component, which significantly reduces repair costs while maintaining original manufacturer specifications. This is a practical solution in situations where:

• the factory wheel has suffered mechanical damage or wear,
• there are crankshaft position sensor errors related to incorrect readings,
• after replacing the sensor, the problem persists and the impulse wheel needs verification.

Using an original component from the same engine family increases the chances of trouble-free installation and maintaining correct geometry relative to the sensor, which is crucial for the proper operation of the engine control unit.

Why Choose Original BMW OE Parts

Choosing an original BMW OE crankshaft sensor wheel is an investment in:

• factory fitment to the crankshaft and sensor,
• consistency with the engine control software,
• repeatable manufacturing quality characteristic of the manufacturer.

For drivers who want to better understand how to optimize repair costs while maintaining high-quality parts, we recommend the guide article: how to save on original car parts by using the used component market. This is a practical addition to your knowledge when planning service for both BMW and other brands.