part 15862 O-Ring, Adapter, Inner Cat Pumps code 15862 Details Cat Pumps number15862 DescriptionO-Ring, Adapter, Inner Qty per pump6 Also comes in 76830 Kit, Seal (Includes: 101, 106, 133, 152, 159)76835 Kit, Valve (Includes: 152, 159, 164, 166, 167, 168) Fits these pumps Cat Pumps 2SFP 1 2SFP500EL