BMW 5 Series E60 E61 525i Bare Engine M54 M54B25 256S5 192HP with 84k 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 5 Series E60 E61 525i Bare Engine M54 M54B25 256S5 192HP with 84k m WARRANTY is an original powertrain unit from the M54 family, designed for the 5 Series E60 and E61 models. It is a classic, inline-six petrol engine, valued for its smooth operation, predictable performance, and high level of refinement. Thanks to its relatively low mileage and factory specifications, it serves as a solid base for an engine replacement in your BMW.

Specifications and technical data

• SKU: 0304304
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 304304
• Substitutable numbers: 11000304304, 0304304, 11000304305, 0304305
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Mileage: 59 000

Technical characteristics of the M54B25 unit

The presented engine belongs to the Engines category and represents the well-known M54B25 design within the BMW community. The inline cylinder layout ensures high operational refinement, while the petrol fuel system promotes smooth power delivery across the entire rev range. The 192HP rating refers to the factory catalog power of this unit, which in practice translates into dynamic yet predictable acceleration, suitable for both city and highway driving.

The engine was designed to harmonize performance with daily usability. The six-cylinder configuration promotes even load distribution, and the M54 design is well-recognized by workshops specializing in the BMW brand, which facilitates servicing and any potential adaptation work.

Purpose and application in the BMW E60 / E61 525i

The offered powertrain unit is dedicated to BMW 5 Series E60 and E61 models in the 525i version, which were factory-equipped with the M54B25 engine. As a result, it is a suitable choice for replacing a damaged engine or restoring a vehicle to its original specifications. Maintaining compatibility with the factory unit type facilitates installation, integration with existing wiring, and cooperation with the vehicle's factory electronics.

The engine will perform well both in cars used on a daily basis and in vehicles maintained in a more conservative, collector-like form, where preserving the original character of the 525i model is important. The BMW inline-six is a solution that continues to be appreciated for its predictable behavior and pleasant operating characteristics.

Condition, mileage, and benefits of purchasing a used engine

The unit is offered as a used petrol engine with documented mileage, which allows for a better assessment of its service history. The low mileage, for this class of component, is conducive to further long-term operation, provided that proper maintenance is performed after installation. For many users, this is a reasonable compromise between the purchase cost and the expected service life.

Purchasing a used OEM engine for a BMW allows you to significantly reduce repair costs compared to a brand-new unit, while maintaining the original specifications. This solution is particularly beneficial when you want to restore the car's full functionality without interfering with its factory configuration.

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 BMW E60 or E61. Before purchasing, it is worth comparing the markings with the vehicle documentation or consulting a mechanic to confirm the unit's compatibility with your car's configuration. This minimizes the risk of error and speeds up the installation process.

If you want to better understand how to safely and consciously choose used powertrain units, procedures for selection by VIN and OEM, and the real cost differences compared to new components, check out our expert guide Why it is worth buying used gearboxes and engines – facts instead of myths. This is a practical addition to your knowledge when planning a major drivetrain overhaul.

Expansion and modernization of the BMW powertrain area

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other elements from the same group, such as additional powertrain units, engine blocks, or complete engine assemblies, check out the available parts in the BMW Engines category.

Such an approach allows you to plan service work in a consistent manner – from replacing the main powertrain unit, through potential retrofitting, to further optimization work. Thanks to this, your BMW 5 Series can maintain the proper dynamics, refinement, and character typical of 525i models with the M54 engine.