Leolin Zas makes his return on the left wing for the United Rugby Championship fixture, which kicks off at 18:15 on Saturday.
Suleiman Hartzenberg will make an impact off the replacements bench along with scrumhalf Herschel Jantjies and utility forward Connor Evans, who has replaced the injured Deon Fourie.
Director of Rugby John Dobson said that it was important to keep continuity in selection for what is a vital match in the context of the season.
"We know that we will have to be much better this week than we were last week, so we wanted settled combinations in place," Dobson told the Stormers' website.
"There was a lot we did right against Connacht and the challenge will be to ensure all aspects of our game are firing against what is a very tough Benetton side."
Stormers - 15 Warrick Gelant, 14 Seabelo Senatla, 13 Dan du Plessis, 12 Damian Willemse, 11 Leolin Zas, 10 Sacha Feinberg-Mngomezulu, 9 Stefan Ungerer, 8 Evan Roos, 7 Marcel Theunissen, 6 Paul de Villiers, 5 Ruben van Heerden, 4 Salmaan Moerat (c), 3 Sazi Sandi, 2 André-Hugo Venter, 1 Ali Vermaak.
Replacements: 16 JJ Kotze, 17 Vernon Matongo, 18 Brok Harris, 19 JD Schickerling, 20 Connor Evans, 21 Louw Nel, 22 Herschel Jantjies, 23 Suleiman Hartzenberg.