Upgrade your Wanhao Duplicator i3 to use a Prusa i3 MK2S extruder, and an E3D v6 hotend! This replacement extruder body includes a spot to mount your X axis endstop switch, and your printer's stock drag chain. It also includes an extra, elongated drag chain mount to replace your stock one with. Lastly, it includes a printable shaft and washers to mount your 625 bearing onto your idler.