Aircraft Model(s): M20K (231/252). Applicable Engines: ALL. 1 - Polished Spinner A-2295-2P,1 - STC Paperwork SA1505GL, 1 - 3-Bladed Propeller PHC-J3YF-1RF/F7663A-2R. Electric De-Ice 67-805 (12/14 volt system). 76 inch diameter 3-bladed aluminum hub