FCA US LLC, 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, according to Reuters.
FCA said it is also recalling 10,077 vehicles in Canada, 1,088 in Mexico and 134 outside North American.
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.