23-year-old Mick Kearney will earn his 50th Connacht cap starting in the second row with Aly Muldowney.
The only change on the bench comes in the forwards with Academy prop Finlay Bealham replacing an injured Nathan White. Connacht's longest serving player Michael Swift is in line to earn his 180th league appearance.
Commenting on the team selection and the upcoming game Head Coach Pat Lam said:
"When you consider the front liners we've been missing these last few months - Wilkinson, Henry, White, Clarke, Faloon and Heenan - the guys who've played in the last five games have put in an outstanding effort and the performances have shown that. And so we go up to Belfast with the same group of guys.
"Willie Faloon made an impressive return from injury and we were planning to give him a start this week but he pulled up with a tight hamstring in the last training run yesterday. It's unfortunate but we don't want to risk him so soon after his return. We'll hopefully see him next week at the Sportsground.
"Young Eoghan Masterson from the Academy will get his sixth start at openside where he is playing out of position but showing time and time again his ability to adapt and slot in to an experienced back row.
"Nathan White also pulled up with a calf injury so we're traveling with Academy prop Finlay Bealham this week who has impressed in training and the two games he's been called upon for.
"Ulster have of course suffered some injuries to their front liners as well but they have such strength in depth with the option to replace one international with another and we don't anticipate any dip in performance.
"They are a well-coached side and last week they put in a magnificent effort against Saracens with 14 men for 75 minutes. But what that performance showed is the quality they have and the team spirit they possess. No doubt it has been a hard week for them but we are under no illusions. We expect them to come out even stronger with the passionate Ravenhill crowd behind them.
"We haven't won at Ravenhill in 54 year so this is our chance to make history. We know it's going to take a massive team effort tomorrow night but it's exciting. This is what we play rugby for, to go up against it and beat the odds."
Connacht line-up v Ulster
15. Robbie Henshaw
14. Tiernan O'Halloran
13. Eoin Griffin
12. Dave McSharry
11. Fionn Carr
10. Dan Parks
9. Kieran Marmion
1. Denis Buckley
2. Jason Harris-Wright
3. Rodney Ah You
4. Aly Muldowney
5. Mick Kearney
6. John Muldoon (captain)
7. Eoghan Masterson
8. Eoin McKeon
Replacements:
16. Dave Heffernan
17. Ronan Loughney
18. Finlay Bealham
19. Michael Swift
20. Andrew Browne
21. Frank Murphy
22. Miah Nikora
23. Darragh Leader
Unavailable/Injured: Sean Henry, James Rael, Craig Clarke, Jake Heenan, Mata Fifita, Aaron Conneely, Paul O'Donohoe, Craig Ronaldson, Matt Healy.
Ulster v Connacht
At Ravenhill Stadium
Kick off 7.05pm.
Live on BBCWales
Referee: Ian Davies (WRU, 15th competition game)
Assistant Referees: Leo Colgan, Paul Haycock (both IRFU)
Citing Commissioner: John Cole (IRFU)
TMO: Kevin Beggs (IRFU)
Guinness PRO12
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