Cat Pumps’ gearbox pumps are long-lasting direct-drive pumps that can be mounted on standard gas or diesel engines, running up to 24 HP. The gearbox drive has a 2 to 1 ratio allowing the pump to run at half the speed of the engine. This configuration provides a compact assembly without running the pump at high engine RPM’s. Cat Pumps has been a leader selling precision triplex reciprocating pumps and systems for more than forty years. With an emphasis on immediate product availability and outstanding customer service, our family owned and operated business prides itself on a commitment to quality and long life as the foundation of its ongoing success.