Applicable aircraft models: piper (pa-23-250, pa-e23-250 with hartzell e2yr-2 with un-counterweighted blades, pa-23-250, pa-e23-250 with o-540, io-540 or tio-540 wide deck engine s/n to "a" change, pa-23-250, pa-e-23-250 with counterweighted props) View Item »