Mini F66 BMW F74 Gran Coupé Engine Starter Motor Denso 12V B48A20P 9454625

Mini F66 BMW F74 Gran Coupé Engine Starter Motor Denso 12V B48A20P is an original starting system component designed for the B48A20P engine family. Thanks to its OEM-compliant design and the use of Denso technology, the starter motor ensures stable engine starting and repeatable performance in daily operation. This is a solution for users who expect reliable engine ignition while maintaining factory specifications.

Specifications and technical data

• SKU: 9454625
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 9454625
• Substitutable numbers: 12419844180, 9844180, 12419454625, 9454625, MS438000-5711, MS4380005711
• Part type: Starter Motor
• Category: Starter Motors

Purpose and compatibility

The presented starter motor is dedicated to Mini and BMW Gran Coupé models from the F-series, equipped with the B48A20P petrol engine. The design, based on Denso solutions, allows for compatibility with the engine's factory equipment, which facilitates installation and reduces the risk of fitment issues. The starter motor belongs to the OEM components group, meaning it was designed for specific vehicle applications rather than as a universal replacement. As a result, the correct mounting points, gear engagement geometry with the flywheel ring gear, and electrical parameters matched to the 12V system are maintained.

Construction and functional parameters

The Denso starter motor in this configuration operates on a 12V system, which is standard in modern passenger cars. The applied electrical-mechanical design provides the appropriate starting torque for the B48A20P unit, enabling efficient crankshaft rotation even at lower ambient temperatures. Key functional features of this model include:

• starting torque characteristics designed for a specific engine,
• compatibility with the vehicle's factory electrical harness,
• maintenance of correct mounting geometry relative to the engine block,
• operation adapted to the serial starter control system. Thanks to these properties, the starter motor can be used as a direct replacement for the factory component without the need for system modifications.

Application in service practice

Replacing the starter motor is a typical service operation performed when experiencing engine starting problems, such as slow cranking, irregular operation during startup, or no response after turning the key. Using a starter motor that complies with the original specification allows for restoring the correct starting parameters of the engine without interfering with other system components. This component belongs to the Starter Motors category, which makes it easier to search for compatible parts within a single vehicle system. If you are planning broader maintenance of the starting system or want to compare other solutions for your car, it is worth checking the full offer in the starter motors category available in our store.

Characteristics of the used product

The offered starter motor is a used part, sourced from dismantling, which represents a reasonable compromise between repair costs and maintaining the original manufacturer's specification. Such components are frequently chosen for projects where factory compliance and service budget control are important. With proper installation and adherence to service procedures, this type of starter motor can continue to provide stable and repeatable performance in daily vehicle use. This is particularly important in cars used as daily drivers, where reliable starting has a direct impact on user comfort.

Support for selection and repair projects

Selecting the right starter motor for a specific engine and body version is crucial for the proper operation of the entire starting system. If you are planning a broader car restoration using parts from dismantling, it is worth familiarizing yourself with practical tips regarding repair planning, diagnostics, and safe tuning – you will find them in the article on affordable daily car restoration using proven used parts. Additionally, if you are interested in a broader context of operation, common faults, and methods of diagnosing them in the starting system, check out our blog guide: a practical guide to starter motors and starting systems. This will allow you to better plan service work and consciously select parts for your Mini or BMW Gran Coupé.