Following the introduction of upgraded compact excavator models 5003ZT and 6003, two additional models also have been placed in the Mustang range. The new machines, 7503ZT and the 8003 (shown), have operating weights of 16,193 and 17,548 pounds, respectively. The 7503ZT, a zero-tail-swing model, is new to the line, while the 8003 replaces the 8002. Both models are powered by a 69-hp Yanmar engine. Maximum digging depth is 158.7 inches for the 7503ZT and 168.9 inches for the 8003.