Cat® 3508 Industrial Diesel Fire Pump Engines, with ratings: 709-794 bkW (950-1065 bhp) @ 1460-1750 rpm, are non-certified, not FM Approved, and not UL Listed. They are available for global non-regulated areas. 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.