OEM 911-110-886-03 Fuel Injector Sleeve for Porsche 911

The OEM 911-110-886-03 is a fuel injector insert sleeve designed for Porsche 911 models equipped with CIS / K-Jetronic fuel injection systems. This critical component creates a proper seal between the fuel injector and the intake manifold, preventing unmetered air from leaking into the cylinder head which can cause lean running conditions and poor engine performance.

Key Features:

• High-quality OEM (Original Equipment Manufacturer) replacement part
• Prevents air leaks that cause lean fuel mixture and performance issues
• Direct replacement for worn or cracked original sleeves
• Precision-engineered for proper fitment and sealing
• Sold individually - six sleeves required per vehicle

Installation Notes:

This sleeve should be replaced with a new fuel injector O-ring seal (part number 99970144640, sold separately) for proper installation and sealing. Over time, original sleeves can crack or deteriorate, especially in engines with many years of service. Replacing these sleeves helps restore proper fuel system function and eliminates vacuum leaks at the fuel injectors.

Alternate Part Numbers: 91111088603, 911.110.886.03, 911 110 886 03