Special long Woodruff key for the 2015 onwards forged 81.3 and 86mm crankshafts with extra long keway hole to locate the lower timing chain gear.
WKN505 is for the camshaft key to hold the larger timing gear.
These are 85 thou proud above crank to accept all known timing gears which fluctuate from 85-90 thou above and have a 45 degree chamfer to facilitate easier sliding on and off the timing gear.
THE SIDE THAT IS FILED FACES UPWARDS