1. Engine Air Inlet
2. VP44 Connector
3. 23-pin OEM Connector
4. High-Pressure Fuel Lines
5. Intake Manifold
6. VP44 Relay-OEM Mounted
7. 3/4 NPTF (in) Water Heater (optional)
8. Magnetic Pickup Location 3/4 to 16 UNF
9. Fuel Inlet Connection
10. Fuel Lift Pump
11. WIF Sensor
12. Crankcase Breather
13. Engine Position Sensor (EPS)
14. Fuel Filter/Water Separator
15. Oil Pressure Sensor
16. Fuel Water Drain
17. Electronic Control Module (ECM)
18. 1/8 NPTF (in) Oil Pressure
19. Engine Position Sensor
20. Engine Dataplate
21. Fuel Injection Pump
22. Intake Air Preheater (optional)