The Ursus 1634 is a farm tractor produced by Ursus in Warsaw, Poland from 1991 to 2009 as part of the 30 Series. It features a Zetor 6.8L 6-cylinder turbocharged diesel engine delivering 152.9 hp (114.0 kW) with a 12-speed two-speed power shift transmission. The tractor includes four-wheel drive, mechanical rear differential lock, power steering, dry disc brakes, and a standard heated cab. It has a fuel capacity of 44.9 gallons (169.9 L) and hydraulic system capacity of 12.15 gallons (46.0 L) with a pump flow of 10.8 gpm (40.9 lpm). The rear hitch is category II standard with optional category III, and the rear lift capacity is 12,125 lbs (5,499 kg). The PTO is independent with hydraulic clutch and offers 540/1000 rpm rear PTO speeds and optional 1000 rpm front PTO. Dimensions include a 106.5 inch (270 cm) wheelbase, 177 inch (449 cm) length, and 11,442 lbs (5,190 kg) weight. Standard tires are 14.9-24 front and 18.4-38 rear. Electrical system includes a 12 volt alternator with 55 amps charging and two 12 volt batteries rated at 135 AH.