The car Onezhets 300BS is designed to replace the timber tractor TLT-100A-06. The machine is equipped with a new cab, a reinforced frame, an off-road system with a wider caterpillar and planetary bevel gears with larger-diameter driving wheels closer to the bearing surface.

Changes in the running system make it possible to increase the length and width of the tractor's support surface, which leads to a sharp increase in the tractor's patency on soils with low bearing capacity and with a deep snow cover, and to an increase in lateral stability of the machine. The links of the caterpillars of increased width provide low soil damage during the tractor turns, which reduces the harmful effect on forest soils.

The hydrostatic transmission (GTS) consists of a LINDA regulated pump mounted on the engine and an adjustable LINDA motor mounted on the rear axle assembly.

The use of a reinforced frame allows to increase the reliability of the machine. The average life before the first major overhaul is 10,000 m.

The cabin is single, protective, vibro-noise isolated, equipped with systems for normalizing the microclimate, with improved visibility. Seat - adjustable, full-turn.

The machine provides for the installation of engines of Russian manufacturers and foreign firms.

The Onegozer 300 is a good base for logging machines (jaw loader, delimiting machine, batch picker, etc.)