part 18178 O-Ring, Inlet Adapter Cat Pumps code 18178 Details Cat Pumps number18178 DescriptionO-Ring, Inlet Adapter Qty per pump3 or 18178 Also comes in 34091 Seal kit, NBR (STD)34105 Valve kit, NBR (STD)702349 Seal kit, NBR (STD) Fits these pumps Cat Pumps 60 Frame 6 674767606761676267676775 Cat Pumps 68 Frame block-style 2 68416861