New Holland T-550

The New Holland T-550 is a trencher tractor produced from 1973 to 1974 by New Holland, a part of Sperry. Built in Belleville, Pennsylvania, USA, it features a Wisconsin 2.5L 4-cylinder gasoline engine producing 37 hp (27.6 kW) gross power. The tractor uses a hydrostatic transmission with infinite forward and reverse speeds in two ranges. It has four-wheel drive and hydraulic articulated steering with a two-post fixed ROPS. Fuel capacity is 13.5 gallons (51.1 L) and the hydraulic system holds 13 gallons (49.2 L) split between front and rear reservoirs. The open center hydraulic system operates at 2250 psi with a pump flow of 3.63 gpm. Dimensions include a length of 193.75 inches (492 cm), minimum width of 50.5 inches (128 cm), height with ROPS of 90.625 inches (230 cm), and base weight of 3460 lbs (1569 kg). Tires are available in lawn/turf and industrial sizes. Attachments include a 56-inch front-mount blade with hydraulic lift and angle, and the New Holland SD-100 backhoe weighing 998 lbs (452 kg). Trencher attachments range from 36 to 72 inches in length with widths of 3 to 6 inches.