... system, with diesel engine pump, jockey pump and control panel. D+J DIESEL FIRE PUMP SYSTEM.Operation: 1 diesel + 1 JockeyCapacity ... tank.2. Jockey pump, horizontal or vertical, 10, 15, 20, 30, 40, 50, 75, 100, 125...GPM3. Pressure vessel, 25, 50 ... operation, battery charger, 12 volt battery to start the engine. D+J Diesel Fire Pump System