The hosts will be without Matt Todd, who has joined several fellow All Blacks in the Crusaders' injury ward.
The 13-Test Todd suffered a small fracture in his thumb in last week's 45-23 win over the Chiefs and is
likely to sit out the next few Super Rugby games.
However coach Scott Robertson said Todd would likely spend fewer than six weeks on the sidelines, where he'll join Test regulars including Kieran Read, Israel Dagg and first-choice props Joe Moody and Owen Franks.
Billy Harmon will pull on the No.7 jumper in his place.
"It's not as bad as a six-weeker, we're hoping - we'll know more next Monday. It's a great chance for Billy to come in and start, he was exceptional off the bench last week," Robertson said.
"Matt, he just came off (last week) and said his thumb was sore - the doctor X-rayed it and he had a broken thumb.
"It's a bit of a shame because he was in great form."
In the only other change to the starting XV which thumped the Chiefs, Scott Barrett has earned a second-row berth ahead of Luke Romano.
Capped 31 times, Romano will make his 100th Super appearance from the pine.
"Luke's an incredibly giving bloke, a real ideas man," Robertson said.
"He's big, strong, a little bit old school in the way he plays but new school in the way he thinks, always challenging me around how we can do things better."
Elsewhere, the Crusaders backline remains unchanged, with David Havili at fullback, the fearsome combination of Jack Goodhue and Ryan Crotty in midfield and Richie Mo'unga and Bryn Hall lining up in the halves.
Wyatt Crockett - who announced on Tuesday that 2018 would be his final year at the franchise - starts up front alongside Codie Taylor and Michael Alaalatoa.
Robertson expected a tough challenge from the Cape Town-based Stormers, who can call upon Springoks including Siya Kolisi and Pieter-Steph du Toit.
Giant lock Eben Etzebeth, however, will sit out the fixture injured.
The Stormers lost to the Waratahs 34-27 last weekend.
"They've got big men, an internationally-experienced forward pack and they're quality, playing good footy," Robertson said.
"It's really important we keep our rhythm and momentum, a bit of consistency."
