part 17667 O-Ring, Valve Plug-80D Cat Pumps code 17667 Details Cat Pumps number17667 DescriptionO-Ring, Valve Plug-80D Qty per pump6 Also comes in 31270 Valve kit, NBR (STD)31285 Valve kit, NBR (STD) Fits these pumps Cat Pumps 25 Frame 2 25102511