Fiat Chrysler Automobiles said it will recall thousands of heavy-duty Ram pickup trucks as well as the Dodge Charger Pursuit to replace faulty alternators that could cause the vehicles to catch on fire.
The problem also can cause the vehicle to stall, the automaker said. FCA will replace the defective alternators.
The recall includes 74,833 Ram 2500 and 3500 pickups; 3500, 4500 and 5500 chassis cabs from the 2007-2013 model years and 2011-2014 Dodge Charger Pursuits. The recall includes another 11,000 vehicle sold in Canada and Mexico.
FCA said alternators from a parts supplier have diodes that wear prematurely when they are near maximum amperage and in hot ambient temperatures. Those are conditions more consistent with fleet-vehicle usage than that of retail customers, the company said.
Such conditions increase the potential for a short-circuit in the alternators, which could cause an engine stall and a vehicle fire. FCA said it knows of one injury related to the problem, but no crashes.
The problem was detected by an FCA investigation of fleet-vehicle performance.