Author Archives: tonguescraper

caterpillar d7 Caterpillar D7 – Wikipedia, the free encyclopediaThe Caterpillar D7 is a medium bulldozer manufactured by Caterpillar Inc.. The first D7 appeared in 1938. The D7C came next in 1955. The D7D came in 1959. The 160 hp …Caterpillar … Continue reading →