Cat® 3412C Industrial Diesel Fire Pump Engines, with ratings: 476-551 bkW (638-739 bhp) @ 1750-2100 rpm, are non-certified and are available for global non-regulated areas. They are not FM Approved and not UL Listed. Starting on demand is a must for a fire pump engine - always. Cat® fire pump engines have a reputation for reliable starts and long efficient service. The Cat line of fire engine pumps covers a wide range of installations.