Back in the late 1950’s, the sound of unmuffled diesel...
Back in the late 1950s, the sound of unmuffled diesel engines that powered Caterpillar’s D8 tractors of that era could be heard on earthmoving projects around the world. This article explores the similarities and differences between the D8 14A (Series E and F) and 15A (Series D and G) tractors that were produced between 1955 and 1958.
