Specifications include, but are not limited to: PRODUCTION MODEL YEAR Tractor must be of the most current model year available. ENGINE Liquid cooled diesel. Vertical exhaust mufflers shall have a rain cap or curved exhaust pipe. Engine cooling system shall have anti-freeze protection to -34o F, or lower. An engine block heater shall be standard on all tractors. For purposes of determining horsepower, the manufacturer’s advertised PTO horsepower will be used to determine the HP class in which the tractor should be placed. TRANSMISSION: Tractors must have a transmission with a minimum of 8 synchronized forward gears with wet clutches, hydrostat or CVT and power reversing ability. A hydraulic shuttle shift allowing the tractor to go from forward to reverse without clutching shall also be standard. PTO 66-85 HP Tractors: A live 540 RPM PTO must be provided. 86-115 HP Tractors: A live 540/1000 RPM PTO must be provided. CAB Tractor shall have full cab with air conditioning and front/back windshield wiper with washer fluid applicator. MoDOT may infrequently order a few open station tractors for special purposes. 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. Whether mechanical or air, seat shall also swivel.