The David Brown 990 Implematic is a utility tractor produced from 1961 to 1980 by David Brown in Meltham Mills, Huddersfield, England. It features a 3.0L 4-cylinder liquid-cooled diesel engine producing 52 hp, with transmission options including a 6-speed gear and a 12-speed partially synchronized gearbox. The tractor has two-wheel drive with mechanical rear differential lock and optional hydrostatic power steering. It includes an open operator station, open center hydraulics with 2000 psi pressure, and a rear PTO with multiple speed options. The tractor weighs between 4272 and 4312 lbs operating, with ballasted weight up to 5880 lbs. Standard tires are 6.00-16 front and 11-32 rear.
David Brown 990990 ImplematicDavid Brown tractorsutility tractor3.0L diesel engine52 hp tractortractor specifications