Customer Asks:
Now here I have 2 ROTAX 582 lying around. I am curious about information through the type number. What year and how many hp versions they are. How do I find out?
Answer:
Rotax 582 S/N 5162890
- ROTAX 582 UL Mod. 90 (Grey Head)
- Manufacturing Date: 23.06.1998
- 300HR TBO or every 5 years (whichever comes first)
As of July 2025, the engine should have had: 5 full overhauls and is part way to its 6th (due June 2028).
Rotax 582 S/N 4105179
- ROTAX 582 UL Mod. 90 (Grey Head)
- Manufacturing Date: 24.09.1992
- 300HR TBO or every 5 years (whichever comes first)
As of July 2025, the engine should have had 6 full overhauls and is on its way toward the 7th.
The Rotax 582 UL DCDI is a two-stroke aircraft engine specially developed for recreational and experimental aircraft. It features two liquid-cooled cylinders, a rotary valve intake, and dual Bing carburetors. The engine includes a dual capacitor discharge ignition (DCDI) system and a Mikuni pulse-driven diaphragm fuel pump. Starting options include either a recoil or electric starter, and various exhaust system configurations are available.
Key specifications:
- Maximum power: 65 HP / 48 kW @ 6500 RPM
- Maximum torque: 55.3 ft-lb / 75 Nm @ 6000 RPM
- Maximum RPM: 6800
- Bore: 2.99" / 76.0 mm
- Stroke: 2.25" / 64.0 mm
- Displacement: 35.44 cu.in. / 580.7 cm³
- Compression ratio: Theoretical: 11.5 / Effective: 5.75
- Available with engine-mounted radiator kits
The Rotax 582 can be run with oil-in-fuel premixed at 50:1 or via an oil injection pump. It operates on automotive fuel with a minimum 87 octane rating (Canadian standards) and super 2-stroke oil of API-TC classification.
Designed for use in recreational and experimental aircraft operating under day visual flight rules (VFR).
Production of the Rotax 582 ended in late 2021.
