Fred Malek, a major Republican fund-raiser and adviser to several presidents who also had a business career that included a stint as president of Marriott Hotels, died on Sunday in Virginia. He was 82.

The American Action Network, a conservative advocacy group that Mr. Malek co-founded, announced the death. His family said he died of complications of an infection after hip surgery.

Mr. Malek built up a wide-ranging political, corporate and philanthropic portfolio. It included running Northwest Airlines, serving as a power broker for the Republican Party and becoming a major benefactor to his alma mater, the United States Military Academy at West Point.

Mr. Malek, who often appeared on cable talk programs, was friendly with several Republican presidents. He served in the administrations of Richard M. Nixon, Gerald R. Ford, Ronald Reagan and George H. W. Bush.