Pourchaire will make his IndyCar Series debut behind the wheel of the #6 Chevrolet as Malukas continues to recover from a left wrist injury and surgery following a mountain biking accident over the off-season.
The Frenchman comes into the mix with an impressive CV that includes claiming the 2023 Formula 2 championship, which came courtesy of two wins and 10 podiums with French-based outfit ART Grand Prix.
Beyond currently serving as a test and reserve driver with Sauber in F1, Pourchaire is also competing in Super Formula this year.
Malukas remains sidelined following wrist surgery and, with Callum Ilott unable to continue his cover in the #6 car due to World Endurance Championship commitments, Arrow McLaren has instead turned to Pourchaire.
"This is an amazing opportunity to drive with such a legendary team in a legendary motorsport series like the NTT IndyCar Series," said Pourchaire. "I’ve watched IndyCar since I was a young kid, and the racing is incredible. I was thrilled to get the call from the team.
"I’m grateful that Zak [Brown, McLaren CEO], Gavin [Ward, team principal] and Tony [Kanaan, sporting director] thought of me for this opportunity and for the team at Sauber to allow me to get on track at Long Beach.
Source: Autosport