Izvestiya MGTU MAMIIzvestiya MGTU MAMI2074-05302949-1428Moscow Polytechnic University6960410.17816/2074-0530-69604Matching of Tractor Diesel Engines and Transmissions IndicesTitovA IPromtractor, Cheboksary-Promtractor, Cheboksary2001200822798530042021Copyright © 2008, Titov A.I.2008The article outlines the analysis and proposals based on it, justifying the rational combination of the characteristics of diesel engines and transmissions (gearboxes) of wheeled tractors and agricultural tractors. The author uses quite modern models of tractors of well-known companies. The conclusions are based on practice of ECP (engines constant power) for the vast majority of tractors.harmonization of indicators of diesel engines and transmissions of tractorsсогласование показателей дизелей и трансмиссий тракторов[Львов Е.Д. Теория трактора. Машгиз, М., 1960.][Болтинский В.Н. Теория, конструкция и расчет тракторных и автомобильных двигателей. М., 1962.][Барский И.Б. и др. Динамика трактора. М., 1973.][http://NE Nractor test publications.]