BMW E60 E61 LCI 523i N53 190HP Bare Engine N53B25A with 85k 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 E60 E61 LCI 523i N53 190HP Bare Engine N53B25A with 85k miles, WARRANTY is a used, original petrol engine block designed for the facelifted 5 Series models. This is a solution for users looking for a technically compatible, six-cylinder inline BMW engine from the modern N53 family, while maintaining the factory performance characteristics of the powertrain.

Specifications and technical data

• SKU: 0429664
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0429664
• Substitutable numbers: 11000429664, 0429664, 11000429665, 0429665
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Mileage: 59 000

Technical specifications of the N53B25A engine

The presented engine block belongs to the family of modern, petrol-powered BMW units with an inline cylinder layout. The six-cylinder design ensures smooth, refined operation and the power delivery culture characteristic of this brand. The engine is designed to run on petrol fuel, which allows for maintaining the dynamics and flexibility typical of the 523i version across the entire rev range.

A bare engine block means the base unit without accessories, which makes it easier to transfer existing components from your current engine and match the configuration to a specific vehicle. This form is particularly beneficial for professional repairs, where the ability to use functional auxiliary parts and full control over the final accessory setup is essential.

Application in BMW E60 / E61 LCI 523i

The engine was designed for the facelifted BMW 5 Series E60 and E61 models, in the 523i version. As a result, it serves as a direct base for replacing the powertrain in cars factory-equipped with the 190 HP N53B25A engine. Maintaining the same design family ensures compatibility with factory electronics, the drivetrain, and the fuel system.

The inline cylinder layout promotes stable operation at higher engine speeds, which is important both in daily use and during highway driving. The unit fits well with the character of the BMW 523i as a comfortable sedan with balanced performance and reasonable fuel consumption.

Benefits of installing a used engine block

Using a used engine block instead of a damaged unit allows for significant cost savings compared to purchasing a brand-new engine. At the same time, you retain the original design specification intended by the manufacturer, which facilitates installation and subsequent diagnostics. Replacing the block is particularly advantageous when damage concerns the engine block or the crankshaft-piston system, while the remaining accessories are still suitable for further use.

A used engine from the same family also carries a lower risk of fitment issues compared to converting to a different unit. A mechanic can transfer the accessories, keeping existing solutions for the cooling, fuel, and control systems, which reduces workshop labor time.

Condition, mileage, and verification

The offered block comes from the Engines category and is a used item, which allows for economical repair while maintaining an appropriate level of quality. The declared mileage of the unit is important information when planning further operation – it is worth considering when deciding on additional service tasks, such as replacing seals or checking timing components during installation.

To select the correct engine for a specific BMW, it is recommended to verify it using the VIN and part numbers. This helps avoid discrepancies resulting from production differences, equipment versions, or changes introduced during the model's lifecycle.

Expert support and additional information

If you want to better understand how to safely and consciously choose used powertrains, it is worth consulting expert materials. Practical tips on selection by VIN and OEM numbers, as well as a comparison of repair and replacement costs, can be found in the article Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses the most important aspects of purchasing used engines in an accessible way.

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 additional blocks, complete units, or other powertrain configurations, check the available parts in the BMW Engines category.