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