RT950 and RT1250 trenchers feature upgrades including more horsepower. RT950 replaces Vermeer's V8550A and has a 99-hp Cummins B4.5T turbocharged engine. The trencher works to depths of 72 inches with widths up to 18 inches. RT1250 has a 120-hp Cummins turbocharged, charge-air-cooled engine. This trencher works to 72 inches deep with widths to 18 inches.