The Zetor 9640 is a row-crop tractor produced from 1996 to 1999 by Zetor in Brno, Czech Republic. It features a 4.2L turbocharged 4-cylinder diesel engine producing 92 hp, with an 18-speed synchromesh transmission and four-wheel drive. The tractor includes hydraulic wet disc brakes, electro-hydraulic rear differential lock, and power steering. It has a rear PTO with wet disc clutch and offers a cab with optional air-conditioning. The original price was $40,000 in 1999.