This is the steel bush Saver in the centre of the mount plate of your Dingo K9-3, Allrounder, K9-4 and CONTRACTOR. This can be worn if you have let the fibre bush flog out.
You will need the bush drift to remove and install this bush properly.
Bush Steel 38.1 ID x 44.5 OD x 32mm wide
Please note price excludes GST