These con-rods will fit the OM601 2.2L, OM602 2.5L, OM603 3.0L, OM604 2.2L, OM605 and OM606 engines with 26 mm wrist. 
You'll need:
-Crankshaft from 2.2 L (4 cylinder OM601), 2.9 L (5 cylinder OM602 ) or 3.5 L (6 cylinder OM603)
-89mm pistons from the OM604.910 or OM604.912 
-Oil squirters from the NA engines 
Those engines displacement is increased from 2.2L to 2.3L, 2.5 to 2.9 and 3.0 to 3.5. 
High strength 7/16" bolts are included, which should be torqued to 70 Nm. 
Each purchase is for one rod and two bolts.