part 18176 O-Ring, Seat Cat Pumps code 18176 Details Cat Pumps number18176 DescriptionO-Ring, Seat Qty per pump6 or 18176 Also comes in 34092 Valve kit, NBR (STD)76140 Valve kit, NBR (STD) Fits these pumps Cat Pumps 60 Frame 6 674767606761676267676775