BMW X3 F25 X4 F26 35dX Bare Engine N57Z N57D30B 313HP with 99k miles, 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 X3 F25 X4 F26 35dX Bare Engine N57Z N57D30B 313HP with 99k miles, WARRANTY is a used, complete engine block with cylinder head, sold without ancillaries, designed for advanced repairs of BMW diesel units. This bare engine from the N57 family provides a solid foundation for rebuilding the powertrain in vehicles equipped with this powerful six-cylinder diesel unit, ensuring structural consistency and factory performance parameters. It is an ideal solution for users and workshops looking to regenerate the drivetrain in a controlled manner while maintaining the original engine specifications.

Specifications and technical data

• SKU: 2239387
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2239387
• Substitutable numbers: 2239387, 11002239387, 2239386, 11002239386, 5A6DAC3, 11005A6DAC3
• Fuel type: Diesel
• Number of cylinders: 6
• Category: Engines
• Engine code: N57D30B
• Mileage: 99 000

Technical characteristics of the N57D30B bare engine

The presented engine belongs to a family of modern, inline BMW diesel units designed for dynamic driving and high refinement. The six-cylinder layout ensures smooth torque delivery, and the design based on the proven N57D30B engine code allows for precise component matching to a specific vehicle configuration.

The engine is supplied as a bare unit, comprising the essential mechanical structure and serving as a foundation for further assembly with ancillaries. This gives the workshop full control over the selection of the turbocharger, fuel injection system, belt-driven accessories, and other auxiliary components, facilitating a perfect fit for the requirements of a specific BMW X3 F25 or X4 F26 35dx vehicle.

Application in BMW X3 F25 and X4 F26 35dx

The offered engine is intended for installation in BMW X3 F25 35dx and BMW X4 F26 35dx models, which are factory-equipped with the powerful N57 family diesel unit. This type of powertrain configuration is particularly valued for its combination of high power and fuel economy, which performs well in both daily commuting and highway driving.

Engine replacement is a frequently chosen solution in cases of severe mechanical damage, such as seizing, block cracks, or issues with the crankshaft and piston system. Using a complete, used engine allows for the restoration of the powertrain's efficiency while maintaining the original engine architecture, which is crucial for compatibility with the vehicle's electronics and control systems.

Benefits of using a used diesel engine

Choosing a used engine from the N57 family is a solution that optimizes repair costs while maintaining a high level of technical compliance. This type of diesel unit is designed for high mileage, and a properly selected engine provides a good base for further operation after necessary service work is performed.

The main advantages of this solution include:

• preservation of the original BMW N57 engine design,
• the ability to individually select and refresh ancillaries according to the workshop's standards,
• better control over the regeneration process compared to ready-made replacements of unknown origin,
• consistency with factory control systems and cooperating units in X3 F25 and X4 F26 models.

Condition, verification, and workshop use

The engine is offered as a used bare engine, meaning it serves as a base for further repair or adaptation work. This type of component is particularly recommended for professional workshops that have the facilities to assess the internal condition of the unit, perform measurements, and carry out potential regeneration before installation in the customer's vehicle.

Due to the nature of the product, it is recommended to perform standard inspection procedures, such as compression testing after assembly with ancillaries, leak verification, and lubrication system checks. A diesel engine of this type, when properly prepared for installation, can provide long-term and stable operation in the demanding conditions typical for X3 and X4 models.

BMW engines – further development and technical knowledge

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as blocks, cylinder heads, or complete power units, check out the available parts in the BMW Engines category.

For users interested in a broader context of operating BMW power units, including common problems and repair costs, the article describing critical designs in the E90 series may be helpful – you can find it here: Troublesome BMW E90 engines: check what can ruin your budget!. If you want to further deepen your knowledge about making safe choices when buying components from the secondary market and the principles of selecting used powertrain elements, it is also worth reading this guide: No more bad purchases! How to professionally select used car parts.