BMW E60 E90 E91 E92 LCI Bare Engine 325i 330i 525i 530i N53 N53B30A WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

BMW E60 E90 E91 E92 LCI Bare Engine 325i 330i 525i 530i N53 N53B30A WARRANTY is an original power unit from the BMW inline-six gasoline engine family, designed for the 3 and 5 series models. This is an option for users looking for a proven, factory-spec solution rather than replacements of unknown origin, while maintaining the engine refinement and dynamics characteristic of BMW. The engine is perfect for professional unit replacement in vehicles equipped with this generation of powertrain.

Specifications and technical data

• SKU: 0421307
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0421307
• Substitutable numbers: 11000421307, 0421307, 11000421308, 0421308, 11000421310, 0421310, 11000421311, 0421311, N53B30
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Mileage: 59 000

Technical characteristics of the N53B30A engine

The presented engine belongs to the Engines category and represents a modern BMW gasoline design with six cylinders in an inline configuration. This type of unit ensures smooth, balanced operation and high refinement, which is particularly noticeable at higher RPMs. The use of gasoline fuel injection allows for good throttle response and facilitates precise tuning with the vehicle's factory electronics.

The N53B30A engine is designed for installation in BMW E60, E90, and E91 models in 325i, 330i, and 530i versions, making it a suitable choice for replacing the unit in cars of this generation. The inline cylinder layout facilitates maintenance, and the design, compliant with BMW factory standards, allows for the preservation of the vehicle's original performance parameters.

Application in BMW E60, E90, E91

The N53B30A engine is dedicated to popular BMW mid-size and executive models, such as the 3 Series (E90, E91) and 5 Series (E60) in 325i, 330i, and 530i versions. As a result, it is a practical solution both for replacing a damaged unit and for professional vehicle restoration after a powertrain failure. Maintaining compliance with the factory vehicle configuration facilitates integration with the existing electrical system, cooling system, and accessories.

This unit is particularly valued by workshops specializing in the BMW brand for its ability to restore cars to full efficiency while maintaining the original driving characteristics. The six-cylinder gasoline engine works well with both manual and automatic transmissions factory-fitted for these model versions.

Benefits of choosing a used BMW engine

Choosing a used engine from the N53 family is a solution that allows for a significant reduction in repair costs compared to purchasing a new unit, while maintaining factory specifications. A properly selected BMW gasoline engine enables:

• restoring full powertrain functionality without interfering with the vehicle's design,
• maintaining original performance parameters and power delivery characteristics,
• easier diagnostics and service due to compatibility with factory control systems.

The unit from this offer has a specified mileage, which allows for better planning of further operation and potential maintenance activities. The used OEM BMW engine is particularly attractive to owners who want to keep the car in a configuration close to the factory state, without experimenting with uncertain replacements.

Selection by part numbers and technical support

The engine has an assigned OEM part number and interchangeable numbers, which facilitates precise verification of compatibility with a specific vehicle version. When selecting a power unit, it is worth using the engine code and vehicle data to avoid problems with accessory and electronics compatibility. In case of doubt, a good solution is to compare data with service documentation or consult a specialized workshop.

To better understand how to safely purchase used power units and what to pay attention to when verifying compatibility via OEM numbers, it is worth reading the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths. The article discusses, among other things, selection procedures by numbers, common myths about used engines, and the cost ratios of repairs versus purchasing a new part.

BMW engines – expansion and powertrain modernization

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 power units, engine blocks, or complete engine assemblies, check the available parts in the BMW Engines category.

Owners of models from years similar to the E60, E90, and E91, often treated as youngtimers, are increasingly deciding to restore them to full efficiency using original, used components. Inspiration for planning such a project can be found in the guide on renovating cars from the turn of the 90s and 2000s, available in the article The second life of a youngtimer – how used car parts rejuvenate cars from 1998–2012, which describes practical modernization scenarios using BMW components.