The Fiat 45-66 is a utility tractor produced from 1985 to 1992 as part of the 66 Series. It features an Iveco 2.7L 3-cylinder liquid-cooled diesel engine producing 44.4 hp (33.1 kW) with a 12-speed transmission offering 12 forward and 4 reverse gears. The tractor is available in two- or four-wheel drive configurations with power steering. It has a fuel tank capacity of 11.1 gallons (42.0 L) and a hydraulic pump flow of 9.11 gpm (34.5 lpm). The rear lift capacity is 4685 lbs (2125 kg) and the rear PTO supports 540/1000 rpm. Dimensions include a 2WD wheelbase of 78.7 inches (199 cm), 4WD wheelbase of 74.8 inches (189 cm), length of 127.6 inches (324 cm), and height of 89 inches (226 cm). Weights range from 4255 lbs (1930 kg) for 2WD to 4740 lbs (2150 kg) for 4WD. Tire sizes are 6.00-16 or 9.5R20 front and 13.6R28 rear. Related models include the Fiat 35-66 and 50-66.