BMW F07 F10 X3 F25 F30 F32 N55 Petrol Turbo Charger Exhaust Manifold 7643115

BMW F07 F10 X3 F25 F30 F32 N55 Petrol Turbocharger Manifold 7643115 is an original turbocharger system component integrated with the exhaust manifold, designed for N55 petrol engines in selected BMW 5 Series, X3, 3 Series and 4 Series models. A used turbocharger from this series allows the factory operating characteristics of the drive unit to be maintained, while maintaining high assembly compatibility.

Specifications and technical data

• SKU: 7643115-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7643115
• Substitutable numbers: 7643115, 11657643115
• Fuel type: Petrol
• Category: Turbos & Parts

Intended use and compatibility with the N55 engine

This turbocharger and manifold are designed to work with the N55 petrol engine, found in popular mid-range and high-end BMW models. Integrating the turbine with the exhaust manifold ensures structural integrity, reduces the number of connections, and simplifies installation in the engine compartment.

By maintaining the original geometry and mounting points, this element allows for the reproduction of factory boost parameters, which translates into a predictable response to gas, stable boost pressure and correct cooperation with the engine control electronics.

Construction and technical characteristics

The turbocharger integrated with the manifold is a solution used as standard by BMW in N55 engines. This design:

• ensures precise guidance of exhaust gases to the turbine rotor,
• reduces energy losses of exhaust gases,
• helps maintain the tightness of the exhaust system on the hot side,
• simplifies the assembly and disassembly process compared to separate components.

The element is designed to operate with gasoline fuel, which means adapting the materials and design to the higher exhaust gas temperatures typical of supercharged gasoline engines. Carefully selected metal alloys and the manifold design promote stable operation across a wide load range.

Benefits of using an original BMW turbocharger

Choosing a used, original turbocharger with manifold for the N55 engine brings a number of practical advantages:

• Factory fit – maintaining the original BMW design minimizes the risk of installation problems, leaks or improper operation of the charging system.
• Consistency with controller software – turbine operating parameters are consistent with ECU control maps, which facilitates maintaining stock power and torque characteristics.
• Optimal compatibility with accessories – proper fit to the exhaust, intake and charge air cooling systems reduces the need for additional modifications.
• A reasonable cost-quality compromise – a used OEM component allows for reduced repair costs while maintaining the design consistent with the manufacturer’s design.

Condition, verification and selection by numbers

The turbocharger and manifold offered are in used condition, a typical choice for N55 engine repairs where maintaining original specifications while controlling costs is paramount. A standard workshop inspection is recommended prior to installation, including checking rotor clearances, leaks, and the condition of the connections.

To select the right component for your specific BMW, it's crucial to compare the part number and interchangeable part numbers with the vehicle's data and service documentation. Practical tips for safely selecting components based on OEM numbers can be found in our guide on how to safely verify BMW part compatibility using OEM numbers , which will help reduce the risk of purchasing a mismatched component.

Other BMW Turbochargers and Used Parts Knowledge

If you're also looking for other turbochargers for BMW, check out our dedicated BMW turbocharger category, where you'll find a wide selection of components for various models and generations. This allows you to choose a solution tailored to your specific engine configuration and user expectations.

In the context of used components, it's also worth exploring other premium manufacturers' approaches to preserving brand identity. An interesting addition to this knowledge is an article on how used parts help maintain the Audi brand's DNA , which demonstrates how original components impact the driving experience and the overall cohesion of the vehicle – similar principles also apply to BMWs.