Specifications include, but are not limited to: Engine: Liquid cooled diesel. Tractors outside the parameters of this engine horsepower range will not be accepted. Minimum Maximum 105 Engine HP 150 Engine HP. Transmission: Tractors must have a transmission with either hydrostat, CVT, or a minimum of 8 synchronized forward gears with wet clutches and power reversing ability. A hydraulic shuttle shift allowing the tractor to go from forward to reverse without clutching shall be standard. PTO: An independent 540/1000 RPM PTO shall be provided. Seat: Super-deluxe heavy-duty industrial with foam padded upholstered seat cushion and backrest. Seat shall have complete vertical and horizontal adjustment with coil spring or equal type shock absorber suspension and tension adjustment. Seat can be either mechanical or air. Brakes: Wet disk brakes with foot pedals operated individually or latched together and operated simultaneously. Three Point Hitch: Category II hitch (minimum) with adjustable stabilizers. Cab: ROPS-certified cab to include AC/Heat, front and rear windshield wipers with fluid applicator, seatbelt mounted and securely anchored to provide operator protection. Unit to have slow-moving vehicle plaque mounted on rear. Steering: Power Assist. Front Axle: Four (4) wheel-assist shall be standard for all tractors. Rear Tires and Wheels: The rear wheels and tires are to be set as wide as possible, per manufacturer recommendation, to provide the best possible stability. The rear tire size must be 460/85 R 34. Hydraulics: The unit shall have live hydraulics with three (3) double-acting auxiliary valves, two (2) with float positions and detents.