BMW E90 E91 LCI 316d 318d Turbocharger Housing N47N Diesel 8506722

BMW E90 E91 LCI 316d 318d Turbocharger Housing N47N Diesel is an original turbocharging system component designed for BMW 3 Series diesel engines after the facelift. The housing is a key component of the turbocharger body, responsible for the stable flow of exhaust gases and intake air. By maintaining the factory geometry, it ensures proper cooperation with the turbocharger and the N47N unit, which translates into predictable engine performance parameters.

Specifications and technical data

• SKU: 8506722-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8506722
• Substitutable numbers: 11658506722, 8506722, 7812321
• Fuel type: Diesel
• Part type: Turbocharger
• Category: Turbos & Parts

Purpose and compatibility

The presented turbocharger housing has been designed for BMW 3 Series E90 and E91 LCI models in 316d and 318d versions, equipped with the N47N diesel engine. The design is matched to the factory exhaust and intake system of these units, which facilitates installation without the need for equipment modifications. Proper matching of the housing to a specific engine variant is important for maintaining the correct boost pressure, exhaust gas temperature, and proper engine control operation. Choosing an item from the Turbochargers and parts group dedicated to a given model minimizes the risk of leaks and boost control problems.

Construction and function of the turbocharger housing

The turbocharger housing acts as a support for the rotor and the exhaust and air flow channels, which is why its geometry and build quality are essential for the durability of the entire system. In the case of the N47N engine, properly shaped channels allow for efficient use of exhaust gas energy, which helps maintain a stable torque characteristic within the unit's operating range. Using an original housing from disassembly allows you to maintain factory flow parameters, and thus reduce the risk of excessively high exhaust temperatures, excessive rotor load, or improper operation of the control valve. This is particularly important in diesel engines, where the turbocharger operates under significant thermal and mechanical stress.

Condition, verification, and service application

The item comes from disassembly and is offered as a used turbocharger housing, which is a reasonable compromise between repair cost and maintaining the manufacturer's original specifications. This type of part is often chosen during turbocharger overhauls when the body requires replacement, while other elements (rotor, bearings, accessories) are selected individually by a specialized service. In workshop practice, the housing can be used both for comprehensive turbocharger regeneration and for repairs of the turbocharging system after mechanical or thermal damage. Using an original body facilitates service work because the factory mounting points, connections, and flow channel shapes are preserved.

Benefits of choosing an original housing from disassembly

By choosing this item, you gain:

• preservation of the factory exhaust and air flow geometry in the turbocharger,
• better compatibility with N47N engine control maps compared to replacements with uncertain specifications,
• the possibility of an economical turbocharger repair by replacing only the housing instead of the complete assembly,
• reduced risk of installation problems thanks to factory mounting points and connections. An additional advantage is the fact that using used elements from the Turbochargers and parts group fits into an approach to repairs where the priority is rational resource management and reducing the amount of workshop waste.

Circular economy and conscious part selection

Using used components, such as a turbocharger housing for a diesel engine, is not only a saving in the repair budget but also real support for the circular economy. Using elements from disassembly allows for reducing the consumption of raw materials and energy needed to produce new parts, while maintaining the vehicle's functionality. If you want to better understand how choosing used elements – including accessories for BMW engines – affects the environment and operating costs, read the article: Circular economy in your garage – how choosing used parts from disassembly really supports environmental protection and your wallet?.

Expanding the turbocharging system in BMW

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as bodies, manifolds, or mounting elements, check the available parts in the BMW Turbochargers and parts category.