... pump, jockey pump and control panel. D+J DIESEL FIRE PUMP SYSTEM.Operation: 1 diesel + 1 JockeyCapacity: 50,100, 150 GPM with 5, 6 ... , 7 Bar 1. Diesel engine pump, with capacity equal to electric pump capacity, fuel ... charger, 12 volt battery to start the engine. D+J Diesel Fire Pump System