Yes – you can swap an entire propeller for an identical one – but it must be correctly prepared for fitting. In the case where there is a simple mechanical bolted coupling – it can be a straight swap. In the case of a taper fit however, the fit must be checked by ‘blueing’ the interface so that near perfect contact of the two surfaces is assured. Where the percentage of contact is not acceptable, the taper must be locally dressed (usually by hand) before rechecking the fit and contact. Fitting a propeller to a shaft is done preferably in a vertical orientation with the shaft first removed so that the influence of gravity is even around the shaft circumference for the fitting. Horizontal fitting is possible, but requires some additional preparation and process.