BMW E81 E87 LCI E90 120d 320d N47 Turbo Turbocharger Diesel Part Cover 7808477

The BMW E81 E87 LCI E90 Turbo Cold Side Housing is a used, original turbocharger cold side housing from the Turbocharger & Parts segment, designed for BMW diesel engines. It provides a solid foundation for professional repair or reconditioning of the turbocharger system in E81, E87 LCI, and E90 diesel cars.

Specifications and technical data

• SKU: 7808477-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7808477
• Substitutable numbers: 8506892, 11658506892, 7808478, 11657808478, 7797782, 11657797782, 4727470, 11654727470, 7808477
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and technical characteristics

The turbocharger's cold side housing is a component of the turbocharging system in BMW diesel engines. It is responsible for the proper routing of compressed air to the intake manifold, and its geometry significantly influences the turbine's operating characteristics, the rate of boost pressure buildup, and the stability of engine parameters.

As part of the Turbochargers and Parts category, the cold side housing is a key component in:

• turbocharger regeneration in BMW diesel engines,
• precise repair of damaged or corroded body parts,
• restoring factory air flow parameters.

Original origin and BMW compatibility

The housing comes from the BMW OE line, which means it retains the factory geometry, mounting points, and manufacturer's quality standards. This allows for:

• maintaining the standard operating parameters of the turbocharger,
• secure fit to the hot side body and turbine core,
• easier to maintain compatibility with factory engine control software.

The item has an assigned part number and associated interchange numbers, making it easy to verify compatibility with a specific engine configuration and vehicle year.

Used condition - practical benefits

The turbocharger's cold side housing is in used condition, providing a reasonable compromise between repair cost and maintaining OEM quality. In practice, this means:

• significant reduction in the cost of turbocharger regeneration compared to a new housing,
• use of an original part with a proven design,
• restoring the correct operation of the supercharging system without interfering with the factory design.

Before installation, standard workshop inspection and possible cleaning are recommended, in accordance with the procedures used for turbocharger regeneration.

Application in BMW diesel engines

The cold side housing is designed for BMW diesel engines. Proper fitment for a specific model (E81, E87 LCI, E90) and engine version should be confirmed by referring to the part number and reference numbers in the technical specifications.

A properly selected cold side enclosure allows:

• maintain stable boost pressure throughout the entire rev range,
• minimize the risk of leaks on the intake side,
• maintain the operating refinement typical of BMW diesel engines.

Support in selecting and expanding the offer

If you're looking for other turbochargers and parts for BMW, check out our dedicated BMW turbochargers and parts section. You'll find a wide selection of turbocharger components, perfect for comprehensive repairs or rebuilds.

When planning a repair, it is also worth reading the guide on our blog, in which we discuss how to rationally use the used parts market and where to look for real savings without sacrificing quality: Rising repair costs and the boom in used parts – how to save on car service?

Summary

The BMW E81 E87 LCI E90 Turbo Housing Cold Side is an original, used turbocharger component from the Turbocharger and Parts category, designed for BMW diesel engines. It provides a solid foundation for professional turbocharger reconditioning, allowing you to maintain factory engine performance while reducing service costs.