Porsche Cayenne 9PA Turbocharger Cyl. 1-4 4.5 V8 Part Housing 48.50 94812301556

Porsche Cayenne 9PA Turbocharger Cyl. 1-4 4.5 V8 Part Housing is an item from the Turbochargers and parts group, designed for the V8 engine forced induction system in the Cayenne 9PA model. The offered turbocharger housing for cylinders 1–4 provides a solid foundation for the professional repair or reconstruction of an existing turbocharger, while maintaining the factory geometry and fit characteristic of the Porsche brand.

Specifications and technical data

• SKU: 94812301556-2
• Mark: Porsche
• Condition: Used
• OEM Part Number: 94812301556
• Substitutable numbers: 94812301556, 948 123 015 56
• Category: Turbos & Parts

Purpose and function in the forced induction system

The turbocharger housing for cylinders 1–4 in the 4.5 V8 engine is responsible for the stable guidance of the exhaust gas stream and the correct seating of the turbine core. The proper geometry of the channels and mounting flanges is crucial for maintaining the correct boost pressure, quick throttle response, and even load distribution across the cylinders on this side of the engine. Thanks to a design consistent with the solutions used factory-standard in the Porsche Cayenne 9PA, the housing allows for maintaining forced induction system performance parameters close to the original, which translates into stable torque characteristics and predictable behavior of the power unit.

Benefits of using an original turbocharger housing

Using an original housing from the Turbochargers and parts group instead of a damaged or corroded component helps reduce the risk of leaks, improper fitment, and uncontrolled drops in boost pressure. This is particularly important in V8 engines, where the forced induction system operates under high thermal and mechanical stress.

• Factory geometry of exhaust channels and mounts, promoting proper gas flow.
• Compatibility with turbocharger accessories used in the Porsche Cayenne 9PA with a 4.5 V8 engine.
• Can be used as a base for regenerating a complete turbocharger on the cylinder 1–4 side. For workshops specializing in the Porsche brand and users who care about maintaining the original vehicle specification, such a housing is a practical solution for forced induction system repairs, allowing for the maintenance of structural consistency of the entire assembly.

Product characteristics and condition

The presented turbocharger housing comes from a Porsche vehicle and is offered as a used part. This means that the item shows signs of wear typical for operation in the high-temperature environment of the exhaust system, but it can be successfully used as a component for repairing or rebuilding a turbocharger after prior verification and potential preparation by a specialized workshop. In workshop practice, such a housing is often used in situations where cracks, deformation, or excessive corrosion of the original body have occurred, and the remaining turbocharger elements (core, rotors, actuators) are still suitable for further operation after regeneration.

Application in service and forced induction system upgrades

Replacing the turbocharger housing on the cylinder 1–4 side is recommended in the event of leaks, mechanical damage, or problems with proper mounting to the exhaust manifold and other system components. Combined with professional turbine core regeneration, this allows for restoring stable boost parameters and reducing the risk of secondary failures. If you are planning a comprehensive repair or upgrade of the engine area in your Porsche and need other elements from the same group, such as turbine bodies, hot-side elements, or additional forced induction system components, check the available parts in the Porsche Turbochargers and parts category.

Technical support and knowledge in part selection

When working with advanced systems in premium class vehicles, such as the Porsche Cayenne 9PA, it is crucial to correctly identify signs of wear and select appropriate replacement components. In case of doubts regarding diagnostics, assembly, or the impact of individual elements on safety and driving parameters, it is worth consulting specialized technical materials. For a better understanding of the importance of original components in the context of safety and road visibility, you can use the advice contained in the article See more and better – a complete guide to selecting and replacing used LED and Xenon headlights, which shows how the proper selection of OEM parts affects vehicle operation.