part 549539 O-Ring, Adapter, Spacer, Inner-70D Cat Pumps code 549539 Details Cat Pumps number549539 DescriptionO-Ring, Adapter, Spacer, Inner-70D Qty per pump3 Also comes in 76265 Seal kit, NBR (STD) Fits these pumps Cat Pumps 2SFQ 1 2SFQ42SEEL