Marchionne said, "It was time to turn the page" on Thursday before he announced the Mack Avenue Engine I in Detroit will see the largest of the investment with $198 million.
Mack Avenue Engine I will use the money to produce the Pentastar V-6 engine for Chrysler.
"It means our doors will remain open," said Bob Hollingsworth, plant manger at Mack I. "Three and a half years ago the future of this company looked bleak," he said.
Now, Mack I will see the addition of 250 new jobs.
An investment of $40 million will go to The Trenton North Engine Plant to add a flexible production line that can run both the Pentastar engine and the Tigershark I-4 engine.
Marchionne said his company will add 1,000 workers at the Warren Truck Assembly Plant to increase production of the 2013 Ram 1500 pickup.
The plant will become the third this year to add a third crew of workers.
The Belvidere Assembly Plant added workers and the Jefferson North Assembly Plant in Detroit added its third crew on Oct. 29th.
"Today is another important milestone in living up to the commitment we made more than three and a half years ago to our employees, this city, this region and our country to transform this company," said Marchionne.
Detroit Mayor Dave Bing and UAW VP General Holiefield accompanied Marchionne for his announcement.
"All of these investments are the direct result of a lot of people who have battled courageously to bring Chrysler back to a state of growth. It is our contribution toward helping southeastern Michigan get back on its feet," Marchionne said.
Over the last several years, Chrysler said they invested almost $4.75 billion and added nearly 6,000 jobs in the U.S.
Visit chryslercareers.com for job information as it becomes available.
~Bob Hollingsworth plant manager of Mack I, Chrysler CEO Sergio Marchionne, Detroit Mayor Dave Bing , UAW VP General Holiefield.