The Washer,plug,drain 12 is the cheapest item from this partsfiche.
This schematic depicts all components used in the Cb1000r 2011 (b) France / Cmf St Oil Pan/oil Pump partslist.
A sample from the products for the Oil Pan/oil Pump include: O-ring,14.8x2.2, Cooler Comp,oil, Pump Assy,oil, Guard Comp,oil Fi.