Exhaust Manifold BMW F20 F30 LCI M140i M240i 340i 440i B58 Turbo Housing 7643147

The BMW F20 F30 LCI M140i M240i 340i 440i B58 Exhaust Manifold is an original turbocharger component from the Turbochargers and Parts category, designed for modern B58 engines. This used manifold provides a functional base for professional exhaust system repair or upgrades in BMW 1, 2, 3, and 4 Series vehicles.

Specifications and technical data

• SKU: 9423788-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9423788
• Substitutable numbers: 11659423788 7643147, 9423788
• Category: Turbos & Parts

Purpose and role in the turbocharging system

The BMW B58 exhaust manifold is responsible for precisely diverting exhaust gases from the cylinder head and efficiently directing them to the turbocharger. In the M140i, M240i, 340i, and 440i engines, it is crucial for maintaining stable boost pressure, proper operating temperature, and even cylinder load.

The original design of the collector ensures:

• exact fit to the B58 head and factory turbo,
• maintaining standard exhaust gas flow parameters,
• consistency with the factory calibration of the engine controller.

The structure and advantages of the original BMW manifold

As a component of the turbocharger and parts group, the BMW exhaust manifold is designed for high thermal and mechanical resistance. The appropriate channel geometry minimizes flow losses, resulting in faster turbine spool-up and stable torque characteristics throughout the entire rev range.

The key advantages of the original manifold include:

• factory-quality fit with the cylinder head and turbocharger,
• compatibility with standard accessories (thermal shields, mountings, connections),
• maintaining the standard noise level and acoustic comfort.

Used condition – practical benefits for the service and the user

The exhaust manifold offered is in used condition, representing a reasonable compromise between repair cost and maintaining original BMW specifications. This type of component is a popular choice for workshops specializing in servicing modern turbocharged petrol engines, where both quality and cost-effectiveness are key.

A used BMW exhaust manifold can be particularly useful in the following situations:

• cracks or deformation of the existing collector,
• damage to threads or mountings on the turbocharger,
• the need for quick replacement in fleet or intensively used cars.

Matching by numbers and purchase security

The component has a dedicated OEM part number and associated interchange numbers, making it easy to precisely identify and match your specific B58 engine configuration. Before purchasing, it's worth verifying compatibility by part number or vehicle VIN to ensure full compatibility with your M140i, M240i, 340i, or 440i.

If you want to better prepare for buying a used turbocharger component online, a practical guide may be helpful: safe purchase of used car parts online - a step-by-step guide , in which you will find tips on verifying part numbers, condition of parts and selection for specific models.

Related Products and Technical Knowledge

When servicing a BMW turbocharger system, it's also worth considering other components from the turbocharger and parts category. If you're looking for other exhaust manifolds for BMWs from various series and generations, check out our offer: exhaust manifolds for BMW , where you'll find a wide selection of original components.

When working on engine components, knowledge about common problems and preventative measures in modern turbocharged engines can also be helpful. It's worth reading this article dedicated to servicing popular Mercedes engines, which covers, among other things, timing and injection issues – many of the diagnostic and parts selection principles are universal: Reliability from the Star – How to Maintain Engine Components in Popular Mercedes-Benz C-Class and E-Class Models?

Summary

The BMW F20 F30 LCI M140i M240i 340i 440i B58 exhaust manifold is an original, used exhaust and turbocharger system component designed for modern BMW petrol engines. It ensures factory fit, maintains stock operating parameters, and provides a solid foundation for professional repair or replacement in specialized workshops and service centers specializing in BMW models with the B58 engine.