The Rotax 582 is a 48 kW (64 hp) two-stroke, two-cylinder, rotary intake valve, oil-in-fuel or oil injection pump, liquid-cooled, gear reduction-drive aircraft engine manufactured by BRP-Rotax GmbH & Co. KG.

The increased displacement had the effect of flattening out the 532's torque curve and allowed the 582 to produce useful power over a wider rpm range.

The 582 has dual independent breakerless, magneto capacitor discharge ignition (CDI) systems and is equipped with two piston-type carburetors.

[4][5][3] Early in the engine's production the propeller drive was via a Rotax type B gearbox, which offered gear ratios of 2.0:1, 2.238:1, and most common 2.58:1.

The standard engine includes a wide band expansion chamber exhaust system with an extra after-muffler as optional.

An integral alternating current generator producing 170 watts at 12 volts with external rectifier-regulator is optional.