The Ultimate 8043 S is the SBrick version of the Ultimate 8043.
The U-8043 is a fully motorized version of the original 8043 motorized excavator set.
The gearbox of the 8043 was removed, and all the digging functions, slewing and driving now all have their own PF-motor, allowing all the functions to be controlled simultainiously. And with SBrick, you can now even controll the speed of all the functions, making it a very precise machine.
Instructions coming soon.