Two years later, the legendary 385 hp (287 kW) D9G was introduced it remained in production for 13 years it became the main crawler on many job sites, testifying to its sturdiness and design. The new 335 hp (250 kW) D9E replaced that model in 1959. In 1956, the D9 had its engine power raised to 320 hp (240 kW). The D9 came equipped with a 1,473 cid D353, which powered the D9 until the 1980 introduction of the D9L. In 1955, the 286 hp (213 kW) D9 was introduced to compete against the more powerful Euclid TC-12. Ten D9X prototype models were built in 1954.
#1954 d2 dozer series#
The series began in 1954 with a prototype tractor called the D9X. The D9 is a series of heavy tracked-type tractors, carried on continuous tracks and usually used as bulldozers. The size, durability, reliability, and low operating costs have made the D9 one of the most popular large track-type tractors in the world.Įngineering and technical description
The D9, with 354 kW (474 hp) of gross power and an operating weight of 49 short tons (44 t), is in the upper end of Caterpillar's track-type tractors, which range in size from the D3 57 kW (77 hp), 8 short tons (7.3 t), to the D11 698 kW (935 hp), 104 short tons (94 t). It is usually sold as a bulldozer equipped with a detachable large blade and a rear ripper attachment. The Caterpillar D9 is a large track-type tractor designed and manufactured by Caterpillar Inc. CAT D9T, the current generation of the Caterpillar D9 tracked-type tractor series.
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