Part 3 is only longer than parts 1 and 2 but shorter than anything else. DP fucked the pacing to draw it out because it's the most popular part. A lot of the fights could have been a single episode, if that. Parts 4 and 5 are both 39 episodes long and part 6 will be as well.
Part 3
1. A Man Possessed by an Evil Spirit (3.5)
2. Who Will Be the Judge?! (2.5)
3. DIO's Curse (2.5)
4. Tower of Gray (2.5)
5. Silver Chariot (2.5)
6. Dark Blue Moon (3)
7. Strength (3)
8. The Devil (3)
9. Yellow Temperance (3.5)
10. Emperor and Hanged Man, Part 1 (3)
11. Emperor and Hanged Man, Part 2 (4)
12. Empress (3)
13. Wheel of Fortune (4)
14. Justice, Part 1 (3)
15. Justice, Part 2 (3.5)
16. Lovers, Part 1 (2.5)
17. Lovers, Part 2 (3)
18. Sun (2)
19. Death Thirteen, Part 1 (3)
20. Death Thirteen, Part 2 (3)
21. Judgement, Part 1 (3)
22. Judgement, Part 2 (2.5)
23. High Priestess, Part 1 (1.5)
24. High Priestess, Part 2 (2)
25. Iggy the Fool and Geb's N'Doul, Part 1 (3)
26. Iggy the Fool and Geb's N'Doul, Part 2 (4)
27. Khnum's Oingo and Tohth's Boingo (3)
28. Anubis, Part 1 (3)
29. Anubis, Part 2 (3)
30. Bastet's Mariah, Part 1 (3)
31. Bastet's Mariah, Part 2 (3)
32. Sethan's Alessi, Part 1 (3)
33. Sethan's Alessi, Part 2 (3)
34. D'Arby the Gambler, Part 1 (3)
35. D'Arby the Gambler, Part 2 (3)
36. Hol Horse and Boingo, Part 1 (3)
37. Hol Horse and Boingo, Part 2 (3)
38. The Gatekeeper of Hell, Pet Shop, Part 1 (3.5)
39. The Gatekeeper of Hell, Pet Shop, Part 2 (2.5)
40. D'Arby the Player, Part 1 (4.5)
41. D'Arby the Player, Part 2 (4)
42. The Mist of Emptiness, Vanilla Ice, Part 1 (4)
43. The Mist of Emptiness, Vanilla Ice, Part 2 (4)
44. The Mist of Emptiness, Vanilla Ice, Part 3 (3.5)
45. DIO's World, Part 1 (5)
46. DIO's World, Part 2 (3.5)
47. DIO's World, Part 3 (5.5)
48. The Faraway Journey, Farewell Friends (4)