BMW E46 E60 E85 320i 520i 2.2i Petrol M54 Engine Crankshaft Crank Shaft 7505383

BMW E46 E60 E85 320i 520i 2.2i Petrol M54 Engine Crankshaft Crank Shaft is an original part from the Crankshafts category, designed for BMW M54 family petrol engines. It is a precision-engineered component responsible for converting the reciprocating motion of the pistons into the smooth rotational motion of the shaft that drives the drivetrain, ensuring stable engine operation.

Specifications and technical data

• SKU: 7505383
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7505383
• Substitutable numbers: 11217505383, 7505383, 11217500288, 7500288, KZ
• Fuel type: Petrol
• Category: Crankshafts

Purpose and application

The presented crankshaft is dedicated to petrol engines used in BMW 3 Series E46, 5 Series E60, and the E85 roadster models, in 320i and 520i versions with a 2.2 displacement. The shaft's design is optimized for the characteristics of the M54 unit, which translates into proper balance, smooth operation, and predictable loads across the entire rev range.

By maintaining factory geometry and parameters, the shaft allows for the preservation of stock engine performance, proper lubrication of the journals, and stable cooperation with bearings and the flywheel. This is particularly important during engine overhauls, where dimensional and material compliance with the original design is crucial.

Construction and technical characteristics

The crankshaft belongs to the group of highly loaded components, which is why its construction is based on a multi-journal architecture with appropriately shaped crank throws. The arrangement of the main and connecting rod journals has been designed to ensure even distribution of forces, reduce torsional vibrations, and enable stable operation under long-term load.

In practice, this means:

• maintaining the proper torsional rigidity of the shaft throughout the entire rev range,
• proper cooperation with the engine lubrication system,
• the possibility of precise balancing of the crank-piston assembly during an overhaul.

For the user, this translates into smooth engine operation, reduction of unwanted vibrations, and predictable engine behavior during daily use and dynamic driving.

Condition, verification, and installation

The item comes from dismantling and is offered as a used BMW crankshaft. Before reinstallation, this type of component is standardly subjected to detailed dimensional and visual inspection – in particular for any signs of wear on the journals, straightness, and potential micro-cracks. If necessary, during the engine overhaul process, grinding of the journals and selection of appropriate repair bearings can be planned in accordance with BMW service documentation.

During installation, it is essential to follow the manufacturer's procedures, including proper tightening of the main bearing cap bolts, checking bearing clearances, and re-balancing the entire crank-piston assembly. A correctly prepared and installed crankshaft allows the M54 unit to be restored to full operational efficiency.

Benefits of using an original BMW crankshaft

Using an original crankshaft from the Crankshafts group in an M54 engine ensures:

• preservation of the engine's factory operating characteristics,
• guaranteed compatibility with other crank-piston system components,
• trouble-free servicing according to BMW documentation,
• easy identification thanks to assigned part numbers and interchangeable numbers (visible in the technical specification).

For workshops and users, this means a predictable overhaul process, reduced risk of fitment issues, and the ability to maintain the car in a configuration consistent with the manufacturer's specifications.

Related components and technical knowledge

If you are planning a comprehensive repair or upgrade of your BMW's engine area and need other elements from the same group, such as other shafts, components working with the shaft, or crank system parts, check the available parts in the BMW Crankshafts category.

For larger repair projects or drivetrain modifications, it is also worth expanding your knowledge on gear ratio selection and drivetrain operating characteristics – the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style, which discusses practical aspects of drivetrain configuration in passenger cars, may be helpful.