ACDelco 12638504 Fuel Injection Pump Bracket Seal

The ACDelco 12638504 is a GM Original Equipment fuel injection pump bracket seal designed specifically for GM Duramax diesel engines equipped with CP3 or CP4 high-pressure fuel injection pumps. This critical seal provides a leak-free connection between the fuel pump mounting adapter and the engine block, ensuring proper fuel system operation and preventing contamination.

Key Features:

• GM Original Equipment (OE) part designed and engineered by General Motors
• Provides a secure seal between the fuel pump bracket adapter and engine block
• Essential component for CP3 and CP4 fuel injection pump installations
• Manufactured to strict GM specifications for reliable performance
• Single-use component - must be replaced and cannot be reused during pump service

This seal is commonly replaced during fuel injection pump removal and installation procedures. As a GM Genuine Part, it meets the rigorous quality and durability standards required for diesel fuel system applications. ACDelco OE components are the same parts installed during vehicle production, ensuring proper fit and long-term reliability for your GM diesel truck.