The John Deere 6820 Premium is a utility tractor from the 6020 Series produced between 2001 and 2006. It features a 6.8L 6-cylinder turbocharged intercooled diesel engine delivering 135 hp (100.7 kW) net power. The tractor has a 20-speed partial power shift transmission (PowrQuad Plus and AutoQuad II) and four-wheel drive with hydrostatic power steering. It includes wet disc brakes and a standard cab. The hydraulic system is a closed center load sensing type with 2900 psi pressure and 25.4 gpm pump flow. The rear hitch is type II/IIIN with an 18,520 lbs (8400 kg) lift capacity. The rear PTO is independent with 540/1000 rpm options. The tractor weighs 12,304 lbs (5581 kg) and has standard agricultural tires sized 16.9R28 front and 20.8R38 rear. Electrical system features a negative ground, alternator charging system with 90-115 amps, and a 12-volt battery.