After a long silence, Renault introduced a completely new tractor series at the beginning of 1981. The TX series featured a modular design with attention paid to easy maintenance. The design of the TX was entirely new, and its cab was Renault’s first quiet cab equipped with side-mounted gear levers. The lifting capacities were high (4100–5100 kg), and the hydraulics were based on the familiar old Tracto Control drawbar sensing system. The steering pump was separate. The brakes were still dry disc brakes, and the transmission was the same 12+12 as in the previous tractors of the corresponding size category. A seat that turned 20 degrees was standard equipment, and an air conditioning unit was optional. The steering wheel was adjustable.

For some reason, the model designations of the TXs were about 10 numbers higher than the actual power. All engines were water-cooled MWMs. Of the models introduced initially, the 103-12 (rear-wheel drive) and 103-14 (four-wheel drive) were equipped with a 93 hp four-cylinder turbo engine. The 113-12/14 (103 hp) and 133-14 (123 hp) were naturally aspirated six-cylinder engines, and the 145-14 was a turbocharged six-cylinder (135 hp). In spring 1982, the 95-12/14 were introduced, which corresponded to the 103-12/14 models except for the removal of the turbocharger.

In 1983, the 103-12 TS and 103-14 TS were introduced, where the equipment level was reduced quite substantially compared to the TX models, especially in the cab. The following year, the 113-12/14 TS and 133-14 TS came out. Especially for Germany, a small six-cylinder 106-14 SP was introduced in autumn 1983. It corresponded to the 113-14 TX model but had the engine power reduced to 96 horsepower and the cab was at the TS level.

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