Deere 643L-II and Deere 843L-II are about the same length, both around 20 ft 8 in.
Deere 643L-II and Deere 843L-II stand about the same height, both around 10 ft 7 in.
Deere 643L-II and Deere 843L-II weigh about the same, both around 30,704 lb.
Deere 643L-II runs 219 hp; Deere 843L-II runs 270 hp.
