RECENTLY REDUCED. GREAT VALUE. 2020 JCB JS370 Excavator. Great for use in Heavy Construction, Mining, and Scrapyards. 37 tons. 281 hp MTU engine: Tier 4 Final Compliant. 59,754 lbf bucket tearout. 60" Bucket. The JCB JS370 is the largest heavy-tracked excavator. Engineered with exceptional strength, productivity, efficiency, comfort, safety, and ease of maintenance. A closed box section revolving frame increases strength and reduces stress. It also makes these tracked excavators highly resistant to impact damage.