The Morecambe rider has also been in action for Jackson Racing team at this year’s World Endurance Championships.
McGuinness said: “Alan Jackson Snr was a Formula 3 world champion and won TTs.
“His sons are running this team and it’s also the team I ride for in World Endurance. They’re Preston-based with tons of enthusiasm. I wish them all the luck – they’ve invested a lot of money into it and I’m riding in the team.
“I just need a little bit of luck on the day.”
The two Supersport races take place on Monday, June 8, and Wednesday, June 10.
McGuinness’ tilt at the Superbike rice and blue riband Senior TT will once again see him riding the official Honda Superbike.
He said: “It’s the one I’ve been on since 2006, it’s the same mechanics, same team boss.
“I think there’s a lot to be said for loyalty and a little bit of continuity, just being with the same people.
“Some people might think it’s boring but I know what I’ve got so I quite like where I am.”
The Superbike race takes place on Saturday, June 6, with the Senior TT closing the festival of racing on Friday, June 12.
Preston firm backs Morecambe ace