Fire Trucks Incorporated (FTI) was an American fire truck manufacturer located in Mount Clemens, Michigan. Originally, FTI was founded as Fire Master Corporation in 1957 by former employees of Detroit-based General Fire Truck Corporation. The name was changed to Fire Trucks Incorporated in 1960. FTI built custom and commercial chassis apparatus, and fulfilled a number of contracts for the US Department of Defense and other federal agencies. Municipal customers included the Philadelphia Fire Department. FTI went out of business in 1988.