Ducati Diavel Workshop Manual page 828

Crankcase assembly: crankshaft/connecting rods assembly
Join the connecting rod cap (F) with the corresponding connecting rod small end (G), checking that the progressive
number stamped on the two pieces is the same, as shown in the figure.
Important
Check that the progressive numbers of a connecting rod are next to the selection of the other connecting rod.
Fill the recommended grease into the two ends of the hole to lubricate threads and underside of the new screws (1) and
the thread of the shaft.