NOTE: For pre-1980 this does not fit the water hook-up box. It does fit the electrical hook-up box.
Fits:
253-070-808B - City Water
255-070-810 - Tank Filler
253-070-808A - Tank Filler
255-070-521 - 110V Electrical
253-070-506 - 110V Electrical
Does NOT fit:
231-070-808 - City Water Connector for Bus