EZ Loader Boat Trailer oil bath hub oil change kit for 5 lug hub. Oil change kit includes 6oz of Premium 80W-90 trailer hub oil with easy fill spout and 2 hub cap o-rings, enough for 2 wheel hubs. If you have a single axle you only need one kit. Tandem axle owners need 2 kits to do all 4 wheels. O-rings are made to fit OEM hub caps. O-Rings will not work on 6 hubs.
