Schwabero, 55, joined Mercury in 2004 with 28 years of experience as a senior executive in the automotive and commercial vehicle industries. He most recently led the outboard business at Mercury.
"Mark has been an integral member of a management team that has secured Mercury's position as the industry leader in technology, quality and operational excellence," said Dustan McCoy, Brunswick's chairman and CEO, in a statement.
In his new position, Schwabero will lead a management team that includes Kevin S. Grodzki and Stephen M. Cramer. This trio had been jointly leading Mercury since Mackey's retirement.
Schwabero could not be reached this morning for comment.