Stridsvagn 74 (strv 74) was a Swedish tank in use with the Swedish Army from 1958 to 1984. It was a modification of the older Stridsvagn m/42, which was phased out of service in the early 1950s. Instead of scrapping the vehicles altogether, the chassis were used to build a new tank which could be used as a supplement to the newly bought Stridsvagn 81. The turret of the strv 74 was completely new, with a 75 mm high-velocity gun based on an old anti-aircraft gun, engines and transmission were modified or changed from the strv m/42, wider tracks and a separate electrical motor for turret traverse was introduced while retaining manual traverse as a backup.