I was not able to find much and I generally like two to three sources. I can only offer you two for this. My search terms were "disney magic engines Fincantieri sulzer". Hope this helps.
Source 1
The ships are propelled by five 16 cylinder Sulzer diesel engines and two 19 megawatt General Electric propulsion motors.
Source 2
Built as a cruise vessel under yard No 5989 by Fincantieri Cant. Nav. ,Marghera at Venezia (Venice), Italy for
Disney Cruise Liner, Liberia. Her bow section was built at Ancona, and after completing towed to Venice.
17 April 1997 launched under the name DISNEY MAGIC, one sister the DISNEY WONDER.
Tonnage 83.308 gross, 8.452 dwt., dim. 294 x 32.25 x 7.90m. (draught)
Powered by five Sulzer-Grandi Motori-Fincantieri 16 ZAV 40S diesels, 57.663 kW., installed in two engine rooms separated by a third compartment housing the two General Electric 19.000 kW (each) propulsion engines, twin shafts, speed maximum 24 knots, cruising speed 21.5 knots.