Aircraft Model(s): PA-32RT-300T Turbo Lance II. Applicable Engines: TIO-540 Series. 1 - 3-Bladed Propeller HC-E3YR-1RF/F7673DR-0, 1 - STC Paperwork SA3181NM, 1 - Polished Spinner C-3575-P. 78 inch diameter 3-bladed aluminum hub propeller.