Machine description: CAT 3406B DIESEL ENGINE, ROPS BAR, DRUM WITH 96” ROTOR EQUIPPED WITH BULLET TEETH, HYDROSTATIC TRAVEL, HI/LOW ROTOR SPEED, HYDRAULIC DRUM LIFT AND LOWER, HYDRAULIC POWERED REAR DRUM DOOR, FRONT 23.5... more info about the 1991 Caterpillar RR-250.