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The paper considers a new technique for assessing the technical level of agricultural tractors competing in one power range. The existing methods of evaluation of technical level, both in Russia and abroad, are associated with expert approach that is limited by the qualitative nature of conclusions, which does not allow to predict quantitative change in performance. In this regard, if there are up to 35 models in the Russian market with equal power capabilities, the problem of making a choice arises. A general indicator of technical level is the ratio of the replacement capacity of the arable unit based on a tractor model under consideration to the replacement capacity of the arable unit based on a reference tractor, which are determined by computer simulation in reference conditions.