Black Stripe Hydro 100 in Technical IH Talk Posted January 6 16 minutes ago, Rick G. said: I’ve never been up close and personal with a Hydro 100. Am I to assume they use a Turbo-charged DT 414 like the 1066 Hydros did? Why did they even make a Hydro 100 when they had made a 1066 Hydro? What’s the gimmick? Also, was there a 966 Hydro? I have the brochures from this era of tractors, but they are boxed away and would be so hard to dig out right now, and I’m beginning to forget some of the details in my old age. Lol Yes the 966 was available with a Hydro from 1971 to 1973. In 1973 the Hydro 100 with non-turbo 436 came out. The 1066 Hydro was also dropped in 1973.