Replacement Kawasaki Big End bushing, available in 3 x sizes (defined by colours) Blue, Black or Brown.  The colour coding on these shell bearings is painted on the side edge of the bearing - you can see that the one illustrated is black.

It is critical that you order and fit the correct size as these are machined to very fine tolerances,  please refer to a workshop manual for the correct bearing selection.

2 x required per journal, 4 x in total.

Sold singly.