Bearing GEARBOX 400/500/550/650/750
KAWASAKI GENUINE PART
One of the bearings for the gearbox on the 4 cylinder Z400/500/550/650/750 models. also fits the GPZ/GPX600 and the Z750B twin models.
There are two on a bike, one behind the clutch and one behind the front sprocket. Bearing number is 83993