Turbo Turbocharger BMW F20 F30 LCI M140i M240i 340i 440i B58 Charger 7643147

BMW F20 F30 M140i 340i B58 Turbocharger 7643147 is an original OEM turbocharger designed for modern B58 petrol engines in BMW 1 and 3 Series models. A used component from this category allows for a technically correct repair of the turbocharging system while maintaining the factory operating characteristics of the engine.

Specifications and technical data

• SKU: 9423788-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9423788
• Substitutable numbers: 11659423788, 9423788, 7643147
• Category: Turbos & Parts

BMW B58 turbocharger characteristics

This turbocharger for the BMW F20 and F30 is a precision component responsible for boosting the B58 petrol engine. The OEM design ensures proper fit to the exhaust manifold, intake system, and control system, resulting in stable boost pressure and predictable throttle response.

As a turbocharger and parts item, the product is designed to operate at high temperatures and high rotor speeds, which is crucial for the durability of the entire drive system.

Purpose and compatibility

The BMW F20 M140i and BMW F30 340i with the B58 engine require a turbocharger with precisely defined flow parameters and control characteristics. Using an original component from the same family guarantees:

• correct cooperation with the factory engine control software,
• maintaining stock power and torque without the need to modify maps,
• appropriate mechanical fit with the existing oil and cooling system.

This makes the turbocharger the right choice both for standard replacement of a worn component and for restoring the car to its factory configuration after previous modifications.

Used condition - conscious service choice

The BMW turbocharger offered is in used condition, which significantly reduces repair costs compared to a new OEM component. With proper inspection and installation, this component can ensure long-term, stable operation of the supercharging system, especially in cars used in road conditions, not track conditions.

Rising service costs are driving the growing trend toward reliable second-hand parts. To better understand how to plan repairs wisely and where used parts make the most economic sense, check out our guide: Rising Repair Costs and the Used Parts Boom – How to Save on Car Service?

Advantages of using an original BMW turbocharger

Choosing an original turbocharger from the same family as the factory-fitted one brings a number of technical advantages:

• Factory geometry and operating characteristics – no risk of mismatching parameters with the B58 unit.
• Compatibility with engine accessories – correct connection to the manifold, oil lines and intake.
• Stable performance – maintaining stock dynamics with the appropriate condition of the remaining system components.
• Consistency with the rest of the drive system – no need for adaptation or mechanical modifications.

For workshops and individual users, this means shorter installation times, a reduced risk of problems after commissioning, and easier diagnostics in the future.

Branded BMW turbochargers - in-store offer

If you're also looking for other turbochargers designed for this brand, check out our BMW turbocharger category: turbochargers for BMW . You'll find a wide selection of OEM and used components, making it easy to select the right part for your specific model and engine version.