Pere Marquette 2-8-4 1225 has returned to service just in time to lead the 2025 edition of the Steam Railroading Institute’s North Pole Express excursions. 

In 2024, just as the North Pole Express season was getting underway, the N-1 Class Berkshire had to be taken out of service because an issue was discovered with the locomotive’s superheaters. The superheaters — which pipe pressurized steam back through the hot gases of the fire a second time to add more heat and thus more power — are located deep in the boiler, making a quick repair impossible. The North Pole Express ran as planned, but behind diesels. 

Throughout 2025, SRI crews worked tirelessly to get the engine back running, and on November 20, it made a brief test run near its home base in Owosso, Mich. 

PM 1225 was built by Lima in October 1941. The locomotive is perhaps best known as the inspiration for the engine in the 2004 film “Polar Express.”

—Justin Franz