KIT, LUBE PLATE, 10", KIT, LUBE PLATE, 10" HDPE, 10" HDPE LUBE PLATE, KIT, 5TH WHEEL, 10" HDPE LUBE PLATE KIT., Blue Ox 5th Wheel Hitch 10" Lube Plate for Hitch Head. Prevents wear on the top plate surface., Used to with Blue Ox 5th Wheel Hitch on hitch head to help prevent wear on the top plate surface., Fifth Wheel Trailer Hitch Lube Plate.