Rancilio S-20/Z-9/11/Classe Group Flange Spacer /grind they use the original Lucifer

they use the original Lucifer part numbers and are only compatible with Lucifer-pattern valve guides like this one

Direct-fit boiler heating element for one-group Faema E61 machines (standard boiler

with an immersed length of 375 mm and an integrated thermostat probe thermal well

Grimac 1160400029 / GR820 / GR830 / V533

since over-tightening is the most common way these crack

Rancilio S-20/Z-9/11/Classe Group Flange Spacer /grind they use the original LuciferRancilio Group Flange Spacer Solid Aluminum A heavy, solid aluminum spacer used at the group flange across several Rancilio platforms. It's a simple mechanical part, but it matters for correct group head alignment and gasket compression. SPECIFICATIONS Material: Solid aluminum COMPATIBILITY Fits: Rancilio S 20, Z 9, Z 11, and Classe group models INSTALLATION Simple DIY task during group head reassembly.