This document shows the correct routing for both DB2 and DS4 injection pump hard fuel lines for all 6.2 and 6.5L diesel engines.

The firing order on the engine and injection pump is the same for both DB2 and DS4.

You may need to refer to this for the following procedures:

• Injection Pump Replacement

• DS4 to DB2 conversion or vice versa

• Injector replacement

• Injector hard line replacement