X4 New style reinforced hot end assembly (0.4mm hardened steel nozzle).

This is the new style reinforced bolt up style, The heat sink is smaller but possibly denser, it also has a lip that engages in the extruder body,

1 x new style heat sink

1 x new style heatbreak

1 x 0.4 hardened steel nozzle

1 x silicon sock

1 x 2510 cooling fan

1 x GD90o paste

Straight swop out for existing X4 series printers. (not suitable for X3).