BMW 1 Series E81 E87 LCI 123d N47S Connecting Tube Pipe Turbocharger 7804639

The BMW E81 E87 123d N47S Turbo Connecting Pipe is an original turbocharger and parts component designed for the N47S engine's supercharging system. This used OEM part ensures factory fit, stable charge air routing, and maintains stock turbine performance.

Specifications and technical data

• SKU: 7804639
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7804639
• Substitutable numbers: 11657804639, 7804639, EM
• Category: Turbos & Parts

Purpose and function in the supercharging system

The turbocharger connecting pipe in BMW 1 Series E81/E87 123d models with the N47S engine is responsible for a tight and stable connection between the turbocharger and the rest of the intake system. A properly selected component reduces boost pressure drops, promotes even cylinder charging, and helps maintain proper torque characteristics throughout the entire rev range.

Using original turbocharger pipe and parts minimizes the risk of leaks, cracks or improper fit, which could lead to a loss of power, increased fuel consumption or errors in the engine control unit.

Construction, fitting and assembly

Designed specifically for the engine bay geometry of the BMW E81/E87 123d, the component ensures proper hose routing without interference with other components. The carefully selected shape and inner diameter support stable airflow, while the factory mounting points facilitate installation in place of worn or damaged hoses.

In practice, this means:

• reliable fit with the turbocharger and other intake components,
• maintaining the serial cable route,
• limiting mechanical stresses acting on connectors and clamps,
• easier disassembly and reassembly when servicing the charging system.

Used condition and the benefits of choosing OEM parts

The pipe offered comes from a disassembly and is in used condition, combining factory-quality workmanship with an attractive price. Original BMW components are designed for long-term operation under the high temperatures and elevated pressures typical of turbocharged engines.

Choosing a used OEM part from the turbochargers and parts category is a good solution when you want:

• maintaining the standard engine operating characteristics,
• avoiding problems with matching substitutes,
• reducing repair costs while maintaining quality.

Application in tuning and modifications

A functioning turbocharger system is crucial not only for production use but also for software modifications and minor tuning. A stable connection between the turbine and the intake helps maintain consistent boost pressure, which is crucial for increasing power and optimizing the performance of the N47S engine.

If you're planning further modifications to your BMW and want to better understand how to utilize the potential of used components, it's worth checking out this article: The Best Used Parts for Tuning Your Car . You'll find practical tips on how to wisely choose components for your drivetrain upgrade.

BMW turbochargers and parts offer supplemented

If you're also looking for other turbochargers and BMW parts for your car, check out our dedicated offer: turbochargers and BMW parts . This allows you to easily assemble the entire set of components necessary for comprehensive turbocharger system maintenance.

Summary

The BMW E81 E87 123d N47S Turbo Connecting Pipe is a used, original equipment turbocharger and parts component designed for the N47S engine. It ensures factory fit, stable charge airflow, and supports proper turbocharger operation, making it a wise choice when repairing or upgrading your BMW's turbocharger system.