As a member of the dual service U-3-b class, the 6325 handled heavy passenger and freight work for the Grand Trunk Western.

Retired in 1959, the locomotive was donated for display to the City of Battle Creek, Michigan where a failed restoration attempt left 6325 in danger of being scrapped.

[3] The U-3-b engines were right at home with GTW's road profile and characteristics, running almost a quarter of a million miles (400,000 km) between heavy repairs.

In 1948, the locomotive pulled President Harry S. Truman's campaign train across Michigan on Grand Trunk rails.

A fundraising campaign, led by the National Association of Power Engineers, promoted its preservation and cosmetic restoration.

[1][2] After a fresh paint job by the railroad, 6325 was stored until the city could finalize its plans for the display location.

[5][6] The city finalized plans for the locomotive's display location on Hall street across from the train station in May 1960.

[17] The locomotive, the siding it sat on and the fence surrounding it were all sold for $1 to 6325 Turntable, Inc., a nonprofit organization founded to restore it.

[18] After moving it in October 1986 from its display location to a track at Franklin Iron & Metal Co.,[19] work soon began to restore the locomotive to operable status.

[20] In 1992 the small Michigan restoration group was notified by the GTW/Canadian National railroad that 6325 would have to be moved from its current siding.

Then at 5 pm, it pulled a special 3-hour excursion to the OHCR Morgan Run steam shops for tours.

However in 2005, the engine was sidelined after it suffered a hot driving axle bearing issue during an excursion run, it was taken out of service indefinitely where it was previously awaiting for a complete rebuild.

6325's time under steam only lasted just over three years after its full restoration was completed in 2001, the museum has said that not as much work would be required to bring the locomotive back to operational condition.

6322 was another well known sister engine, that is, for being the very last steam locomotive to be used by the GTW to pull a regularly scheduled passenger train.