SELF CONTAINED ENGINE/PUMP PKG: wittig rfl1000 vacuum pump, w/ 4 way valve and inlet filter. air operated 4 way valve w/ air control at rear of trailer. Direct drive to engine with clutched pump drive, 1:1 ratio, extended clutch operator to driver side. 28 hp @ 1800 rpm deutz air cooled engine. Pump engine package skid mounted transvers on trailer front porch. Engine rubber mounted to skid. Skid rubber mounted to trailer. All exhausts and mufflers mounted on trailer and plumbed.