part 49850 Backup Ring, Cylinder Cat Pumps code 49850 Details Cat Pumps number49850 DescriptionBackup Ring, Cylinder Qty per pump3 Also comes in 76034 Valve kit, FPM (.0110)76081 Valve kit, NBR (STD)76389 Seal kit, NBR (STD)76390 Valve kit, NBR (STD)76670 Seal kit, FPM (.0110)76679 Valve kit, FPM (.0110)77033 Valve kit, NBR (STD) Fits these pumps Cat Pumps 15 Frame block-style 1 1570 Cat Pumps 35 Frame 1 3550 Cat Pumps 7 Frame 6 700700G1740740G1760760G1