Fiat Chrysler said it is recalling about 74,833 vehicles in the United States to replace the alternators because of a problem that could result in engine stall or a vehicle fire.
Fiat's U.S. arm said on Tuesday that certain alternators could have problems with the diodes, which could lead to a short-circuit in the alternators and could result in engine stall or vehicle fire.
The company said it was aware of a single potentially related injury, but no accidents.
FCA said it is also recalling 10,077 vehicles in Canada, 1,088 in Mexico and 134 outside North America.
Vehicles affected are certain 2007-2013 Ram 2500 and 3500 pickups; 3500, 4500 and 5500 chassis cabs; and 2011-2014 Dodge Charger Pursuits, the company said.