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