The Bosch Fuel Rail Assembly is ideal when replacing contaminated fuel system components in your Duramax truck. If you have experienced CP4 fuel pump failure, metal shavings and contamination have most likely circulated through the fuel system. In the event of a failed CP4 it is recommended that you replace the entire fuel system including the fuel rails to help remove all debris and prevent any future recontamination in the fuel system.
- Right side
- Direct fit replacement