The Valtra T121 is a row-crop tractor produced from 2007 to 2012 as part of the T Series. It features a 6.6L 6-cylinder Sisu Diesel engine producing 133 hp (99.2 kW) with Tier 3 emissions compliance. The tractor offers variants with mechanical or electronic transmissions and hydraulic controls. It has a 36-speed transmission, four-wheel drive, hydrostatic power steering, and hydraulic disc brakes. The cab comes standard with air-conditioning. Fuel capacity includes a main 43.6 gal (165.0 L) tank and an auxiliary 44.9 gal (169.9 L) tank. The tractor hitch supports rear and front lifts with capacities of 16,980 lbs and 7,716 lbs respectively. PTO options include independent rear PTO with multiple speeds and an optional front PTO. Dimensions include a 108.2 inch wheelbase, 203.1 inch length, and a weight of 12,460 lbs.