Mini F66 F67 John Cooper Works JCW Bare Engine B48A20S B48P 231HP 1k, 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. Mini F66 F67 John Cooper Works JCW Bare Engine B48A20S B48P 231HP 1k, WARRANTY is a sporty, petrol engine block designed for dynamic versions of the Mini John Cooper Works family. This is a solution for users looking for a technically matched powertrain unit with a modern four-cylinder design, prepared for the installation of auxiliary equipment. By maintaining the factory engine code, it serves as a solid base for professional repairs or drivetrain modifications.

Specifications and technical data

• SKU: 5B64447
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 5B64447
• Substitutable numbers: 5B64447, 11005B64447
• Fuel type: Petrol
• Number of cylinders: 4
• Part type: Engine Long Block
• Category: Engines
• Engine code: B48A20S B48P
• Mileage: 1 000

Technical characteristics of the JCW engine block

The presented unit belongs to the Engines category and represents the family of Mini petrol units with the code B48A20S B48P. The four-cylinder layout ensures balanced operating parameters, and the design, prepared for turbocharging, allows for the power output characteristic of the John Cooper Works version. The unit is offered as a bare engine block, meaning it serves as a base for transferring accessories from an existing engine or installing new components according to individual service requirements. This type of petrol engine performs well both in stock applications and in projects where precise adherence to factory specifications is essential. The inline four-cylinder configuration facilitates service and diagnostics while maintaining the compact dimensions of the entire powertrain.

Application and benefits of installation

The John Cooper Works bare engine block is intended for Mini F66/F67 users who need to replace their powertrain unit while maintaining compatibility with the vehicle's original architecture. This type of solution is particularly beneficial when:

• the existing engine has suffered serious mechanical or thermal damage,
• it is necessary to rebuild the unit using a verified block and cylinder head,
• it is important to maintain the correct engine code in the vehicle,
• a drivetrain upgrade based on a JCW version base is planned. Because this is a bare engine block, the workshop has full control over the selection of accessories, fuel system, turbocharging, and auxiliary components. This allows for optimized repair costs while maintaining high build quality and consistency with the factory Mini configuration.

Condition, origin, and technical aspects

The unit comes from the Mini range and is classified as used, which in practice means the possibility of achieving an attractive cost-to-performance ratio. The petrol nature of the engine ensures it fits perfectly into the sporty profile of John Cooper Works models, providing appropriate refinement and potential for dynamic driving. The four-cylinder architecture promotes even loading of the crankshaft-piston system and predictable behavior under load. The B48 engine family is widely used in modern designs, which facilitates access to service knowledge and compatible accessory components. For workshops specializing in the Mini brand, this is a significant advantage when planning repairs, overhauls, or powertrain conversions.

Selection, compatibility, and technical support

To correctly select the engine block for a specific Mini F66 or F67, it is recommended to verify compatibility using the engine code and vehicle data. In practice, this means checking the factory configuration, the type of accessories used, and the engine control unit requirements. This selection method minimizes the risk of mechanical or electronic incompatibility and speeds up the installation process in the vehicle. If you want to better understand how to safely and consciously invest in used powertrain units, it is worth checking out an expert guide describing the facts and myths associated with such purchases – you can find it in the article Why it is worth buying used gearboxes and engines – facts instead of myths. This is a practical addition to your knowledge when planning a larger scope of work in the drivetrain area.

Expanding work on the Mini drivetrain

If you are planning a comprehensive repair or upgrade of the engine area in your Mini and need other elements from the same group, such as additional engine blocks or cylinder heads, check out the available parts in the Mini Engines category. Such an approach allows you to plan the full scope of work – from replacing the engine block, through selecting compatible mechanical elements, to configuring accessories – based on components from one consistent product group. This makes it easier to maintain the technical integrity of the entire drivetrain and optimize future service costs.