This is the high pressure steel injection line for cylinder #1 on a 1994 - 2003 GM 6.5L engine. This line runs from the back side of the diesel injection pump to the fuel injector in the cylinder head. These lines are built for pickup truck applications. For a van you may have to bend them slightly to work. Give us a call if you have any questions.
These lines are used with the electronic "DS" style pump. If your injection pump is the "DB" style that has mechanical linkage to the throttle pedal use the 1988-1993 injection lines instead. If you are not sure look at the injection pump data tag and look at the model number. That will tell you if you have the DS or DB model pump.
OEM Part Number 10225921
Former Part Number D10225921