Bypass Valve BMW G01 G20 G30 B47 TurboCharger Charge Air Valve Housing 8587518

The BMW G01 G20 G30 B47 Turbocharger Bypass Valve Housing is an original BMW turbocharger component designed for use in B47 engines. A used bypass valve housing allows for a cost-effective, yet technically correct, turbocharger repair while maintaining factory engine performance.

Specifications and technical data

• SKU: 8587518
• Mark: BMW
• Condition: Used
• OEM Part Number: 8587518
• Substitutable numbers: 8587518, 11658587518
• Category: Air Bypass Valves

Purpose and function in the supercharging system

The turbocharger bypass valve housing is responsible for the correct seating and guidance of the bypass valve in the turbocharger system. In BMW B47 engines, this component works in conjunction with the turbocharger to stabilize exhaust gas and charge air flow, resulting in smooth pressure buildup, reduced turbo lag, and proper load response.

A properly selected bypass valve housing is crucial for:

• maintaining stable boost pressure over the full rpm range,
• maintaining factory power and torque parameters,
• limiting turbocharger overloads during sudden load changes.

Construction and fitment for BMW G01, G20, G30

The housing presented here belongs to the bypass valve category and is structurally adapted to the architecture of the B47 engine used in the BMW G01, G20, and G30 models. The geometry of the mountings, flow channels, and sealing sockets has been designed for specific BMW factory solutions, which simplifies installation and ensures correct positioning relative to the turbocharger and other system components.

Thanks to this, with the correct selection for the engine version, you can achieve:

• reliable fit with the turbocharger without the need for modifications,
• maintaining the original exhaust and air flow path,
• compatibility with factory mounts and accessories.

Technical condition and benefits of choosing a used part

The component is offered in used condition, which allows for reduced repair costs while maintaining the original manufacturer's specifications. In practice, this means the turbocharger can be restored to full working order without having to invest in a new part, while maintaining compatibility with BMW factory solutions.

Choosing a used bypass valve housing is a beneficial solution for users who:

• are looking for an economical alternative to new components,
• want to keep the original design of the supercharging system,
• are planning to repair or remanufacture the turbocharger using OEM parts.

Why it is worth choosing original BMW bypass valves

Original bypass valves and their housings are designed with specific engines in mind, ensuring predictable engine performance under varying operating conditions. For B47 engines, using the correct bypass valve housing helps maintain:

• stable operation of the turbocharger under dynamic loads,
• consistency with factory engine control unit maps,
• appropriate operation of the drive unit in terms of noise and vibration.

If you are planning a comprehensive service of the supercharging system, it is also worth familiarizing yourself with the issues related to exhaust gas recirculation - they are discussed in detail in the article EGR: what is it and why you should consider used EGR valves , which helps you better understand the cooperation of individual engine components.

Selection and other BMW bypass valves

When selecting a bypass valve housing for a BMW G01, G20, or G30 with a B47 engine, it's crucial to compare the specifications with the factory part and verify compatibility with the specific engine version. For upgrades or further maintenance of the supercharger system, you may also need other components from the same group. If you're looking for other bypass valves for BMW, check out our dedicated category: BMW Bypass Valves .