BMW E60 E61 E90 E91 Bare Engine 523i 525i 323i 325i N52 N52B25A 72k m, 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 E90 E91 Bare Engine 523i 525i 323i 325i N52 N52B25A 72k m, WARRANTY is an original powertrain unit from the N52 family, designed for BMW 3 Series and 5 Series models. The engine belongs to the modern, inline petrol construction family, ensuring smooth operation, high refinement, and solid performance. It is an attractive option for users looking for a proven, used petrol engine for professional repair or replacement.

Specifications and technical data

• SKU: 0415402
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0415402
• Substitutable numbers: 11000415402, 0415402, 11000398738, 0398738, 11000398739, 0398739, 11000415403, 0415403
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Mileage: 59 000

Technical characteristics of the N52B25A engine

The presented engine belongs to the Engines category and is intended for BMW vehicles equipped with the 218 HP 2.5 N52 unit. The inline six-cylinder layout ensures excellent balance and a characteristic, linear throttle response, highly valued in 325i and 525i models. The unit runs on petrol, which translates into high refinement, quiet idling, and predictable behavior at higher RPMs.

The N52B25A engine is a modern construction for its generation, designed to combine daily usability with the dynamic characteristics typical of BMW petrol units. The inline-six works well with both manual and automatic transmissions, making it easy to match to a specific vehicle configuration.

Application in BMW E60, E90, E91 models

The offered engine is intended for popular BMW 3 Series and 5 Series models, such as the E60, E90, and E91 in 325i and 525i versions. As such, it is a suitable choice for replacing the powertrain in mid-size and executive cars, where both ride comfort and adequate power reserves are important. The six-cylinder design fits well with the character of these models, providing smooth acceleration and stable operation across the entire rev range.

The N52B25A petrol engine is a popular choice for users who expect flexibility, predictable throttle response, and the pleasant sound of an R6 unit from their BMW. It is a solution that allows for restoring the vehicle's full performance without having to sacrifice the original factory characteristics.

Operational parameters and condition

The unit comes from the secondary market and is offered as a used petrol engine. The engine's mileage is relatively low for this generation, which in practice means less wear on moving parts and potentially longer service life with proper maintenance. The inline six-cylinder layout promotes even load distribution, which is beneficial for durability.

This type of engine is a good choice both for standard replacement after a failure and for planned powertrain upgrades within the same engine family. By maintaining the original BMW specifications, it is possible to preserve factory performance parameters and compatibility with the existing vehicle installation.

OEM selection and interchangeable numbers

The offered engine has an assigned OEM part number and interchangeable numbers, which significantly facilitates precise matching of the unit to a specific BMW vehicle. When selecting an engine, it is recommended to verify compatibility using the OEM number, reference numbers, and the vehicle's VIN to avoid issues with installation and control electronics.

If you want to better understand how to safely purchase used powertrain units and what to look for when checking numbers, selection procedures, and cost-effectiveness, read our guide: Why it is worth buying used gearboxes and engines – facts instead of myths. This is a practical addition to your knowledge when planning an engine replacement in a BMW.

Comprehensive BMW powertrain upgrade

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 powertrain units, check out the available parts in the BMW Engines category.

As a used petrol unit, the N52B25A engine allows for an economical restoration of the vehicle's performance while maintaining the brand's original characteristics. It is a solution that will work well both in daily use and in more demanding conditions, provided it is installed correctly and serviced regularly according to the manufacturer's recommendations.