part 665431 Backup Ring, Packing Cat Pumps code 665431 Details Cat Pumps number665431 DescriptionBackup Ring, Packing Qty per pump3 Also comes in 32522 Seal kit, NBR (STD)77077 Seal kit, NBR (STD) Fits these pumps Cat Pumps 36 Frame 3 3621X3621XD3622X
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