The main variant, the PT6A, is available in a wide variety of models, covering the power range between 580 and 920 shaft horsepower in the original series, and up to 1,940 shp (1,450 kW) in the "large" lines.
Varian utama, PT6A, tersedia dalam berbagai macam model, yang mencakup rentang daya antara 580 dan 920 tenaga kuda poros dalam serial aslinya, dan sampai 1.940 shp (1.450 kW) pada baris "besar".