SA400 mud pump is powered by a 350-horsepower Cat Tier 4-I engine and has a pump capacity up to 435.3 gpm. The stand-alone pump features an engine-mounted lubrication pump to provide a continuous flow of drilling fluid at any pump speed during drill operations. An onboard open control station and a tethered control box let the operator move the control to different locations near the machine to monitor mud flow rate and pump performance at any point around the unit.