BMW G20 320i G22 420i G30 520i Bare Engine B48B20A B48C 35k 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.

BMW G20 320i G22 420i G30 520i Bare Engine B48B20A B48C 35k miles, WARRANTY is a used, complete bare engine block from the B48 family, designed for modern BMW 3, 4, and 5 series models. This is a solution for users who need a technically compatible petrol engine for professional repair or replacement, while maintaining factory performance characteristics. By retaining the original design, the bare engine serves as a solid base for further equipment and configuration for a specific vehicle.

Specifications and technical data

• SKU: 5A078C2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A078C2
• Substitutable numbers: 5A078C2, 11005A078C2, 2470900, 11002470900, 5A078C1, 11005A078C1
• Fuel type: Petrol
• Number of cylinders: 4
• Part type: Engine Long Block
• Category: Engines
• Engine code: B48B20A B48C
• Mileage: 35 000

Technical characteristics of the B48 engine

The presented bare engine belongs to the modern BMW B48 engine family, designed for efficient petrol operation and high refinement. The unit features four cylinders in an inline configuration, which ensures a good balance between dynamics and operating economy. The B48 design is widely used in current BMW generations, which facilitates the selection of accessories and integration with the vehicle's electronics.

A bare engine means you receive the base of the powertrain – the block, cylinder head, and key mechanical components – prepared for transferring accessories from your previous engine or installing new components according to workshop requirements. This configuration is particularly beneficial for post-accident repairs or after a mechanical failure, when some of the accessories are still suitable for reuse.

Application in BMW G20, G22, G30 models

The engine is designed to work with popular BMW models: the 3 Series G20 in the 320i version, the 4 Series G22 in the 420i version, and the 5 Series G30 in the 520i version. This means that its design parameters, mounting points, and general architecture are consistent with the factory specifications of these generations. As a result, the bare engine can be used both for standard unit replacement and for more advanced modernization projects within the same engine family.

In practice, this translates into:

• easier fitment to standard engine mounts and brackets in the engine bay,
• consistency with factory cooling and lubrication systems after transferring accessories,
• the ability to maintain the vehicle's original driving parameters.

Condition, mileage, and operational potential

The unit is used, which in the case of modern BMW B48 engines allows for an attractive compromise between cost and further operational potential. The declared mileage is relatively low for this generation of engines, which increases its suitability for daily-driven cars. For workshops and individual customers, this means the possibility of carrying out a repair using an original bare engine, without the need to invest in a full, brand-new powertrain.

The bare engine is particularly advantageous where the existing equipment (turbo, injection, manifolds, auxiliary equipment) remains functional and can be transferred. This allows for optimizing repair costs while maintaining consistency with the vehicle's existing configuration.

Benefits of choosing a used B48 bare engine

Choosing a used engine block from the B48 family for a BMW G20, G22, or G30 is a solution that often allows for a significant reduction in repair costs compared to purchasing a new unit. At the same time, you retain the original design, which is important for proper cooperation with the factory engine control unit and electrical installation. For professional workshops, it also provides greater flexibility in terms of configuration – accessories and software can be selected exactly to the specifications of a given car.

To better understand the differences between new and used powertrains and to learn about the procedures for selection by OEM and VIN numbers, it is worth reading our expert guide: Why it is worth buying used gearboxes and engines – facts instead of myths. The article explains how to consciously approach the purchase of a used engine and how to evaluate the profitability of such an investment.

BMW engines – component selection and expansion

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 bare engines, blocks, or cylinder heads, check the available parts in the BMW Engines category.

This allows you to build a coherent package of powertrain components, matched to the specific vehicle generation and user requirements, which facilitates both installation and subsequent service maintenance.