The Caterpillar D11T is a large bulldozer introduced by Caterpillar Inc. in 1986 to replace its D10. Weighing 248,500 pounds (112,700 kg), it is Caterpillar's largest and most powerful bulldozer. Mainly used in the mining industry, it is also employed to push-load scrapers, and rip rock overburden. D11s are manufactured in East Peoria, Illinois.