The Leyland 604 is a farm tractor produced by Leyland from 1982 to 1984. It features a Leyland 3.8L 4-cylinder diesel engine delivering a claimed 62 hp (46.2 kW) at the PTO. The tractor has a 9-speed transmission with 9 forward and 3 reverse gears and is two-wheel drive. It is equipped with a rear Type II hitch and an independent 540 rpm rear PTO. The tractor weighs 6400 lbs (2903 kg) and rides on 12.4-24 front tires and 16.9-30 rear tires. Originally priced at $21,000 in 1984, the Leyland 604 is a compact and capable tractor for various farm tasks.