BMW F45 F46 LCI 218d B47B Automatic Transmission GA8G45AW - EKJ 9423812 WARRANTY

Listing details

The gearboxes are sold with a 90-day warranty! They were tested before removal and are in full working order. BMW F45 F46 LCI 218d B47B Automatic Transmission GA8G45AW - EKJ is an original component from the Automatic transmissions group, designed for the 2 Series Active Tourer and Gran Tourer facelift models. This used automatic transmission allows for maintaining the factory performance characteristics of the drivetrain, ensuring smooth gear shifts and predictable vehicle behavior.

Specifications and technical data

• SKU: 9423812
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9423812
• Substitutable numbers: 24009455312, 9455312, 24009423812, 9423812, 24008740312, 8740312
• Gearbox type: Automatic
• Part type: Automatic Transmission
• Category: Automatic Transmission

Technical characteristics and intended use

The presented transmission belongs to the BMW automatic transmissions group and is a design engineered to work with the B47B diesel engine in the 218d model. The automatic transmission used has been developed for harmonious integration with the drivetrain, which translates into stable acceleration, predictable downshifts, and comfortable driving in both city and highway conditions. The transmission type defined as Automatic signifies a fully automated gear shifting process, without the need for a clutch pedal. This solution is particularly beneficial for daily use, reduces driver fatigue, and allows for full utilization of the B47B unit's torque potential.

Benefits of using an original BMW automatic transmission

Using an original transmission from dismantling in a BMW F45/F46 LCI brings a number of practical advantages:

• factory fitment for the 218d B47B drivetrain,
• preservation of the stock gear shifting characteristics,
• consistency with the vehicle's control software,
• reduction of risks typical for non-factory replacements. For workshops and users, this means predictable installation and easier electronic configuration compared to non-stock solutions. The original BMW automatic transmission allows for maintaining driving parameters consistent with the manufacturer's specifications, which is important for both comfort and the durability of other drivetrain components.

Selection, compatibility, and replacement numbers

This automatic transmission is assigned to a specific configuration of the BMW 218d model in the F45 and F46 facelift versions. In practice, this means that when selecting parts, it is crucial to verify compatibility with the OEM number and available replacement numbers in the service documentation or the manufacturer's catalog. The product has assigned reference numbers, which facilitates identification and matching to a specific vehicle unit. Thanks to this, the workshop can precisely confirm compatibility before installation, minimizing the risk of mechanical or software mismatch. Information about reference numbers is particularly important when comparing transmissions from different model years or equipment versions within the same series.

Condition, origin, and service application

The offered transmission comes from dismantling and is marked as Used, which in practice represents a realistic cost-effective alternative to purchasing a new component. For many users and service centers, this is a reasonable compromise between price and maintaining the factory design and transmission operating characteristics. In service applications, such a transmission will work well both for a typical replacement of a damaged gearbox and for post-accident repairs, where it is necessary to restore the original drivetrain. Maintaining the stock specification is also important for later software updates at authorized service centers.

BMW automatic transmissions – expansion and additional information

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other elements from the same group, such as a torque converter, control elements, or additional transmission components, check the available parts in the BMW automatic transmissions category. When making a decision about replacing a transmission, it is also worth knowing the arguments in favor of choosing original components from dismantling instead of expensive remanufacturing. This topic is discussed more broadly in the article: Manual transmission failures in cars – why is an original used part a more reasonable choice than remanufacturing?, which helps to understand the economic and technical aspects of such a decision, also in the context of automatic transmissions.