G.I. Joe

Crankcase is a fictional character from the G.I. Joe: A Real American Hero toyline, comic books, and animated series. He is a member of the Cobra organization, serving as a vehicle driver and mechanic.

Introduced in 1987, Crankcase's primary function within Cobra is operating and maintaining their ground vehicles. His expertise lies in keeping Cobra's often unconventional and experimental vehicles running, even under harsh conditions. He's portrayed as a skilled but somewhat eccentric mechanic, often preferring to work alone.

His character is defined by his loyalty to Cobra and his dedication to his work, rather than any specific personality quirks. He's a competent and reliable, if somewhat unremarkable, member of Cobra's ranks. His filecard mentions a history of working on old cars before joining Cobra, hinting at the origin of his mechanical aptitude.

Crankcase is not typically depicted as a frontline combatant, instead serving a support role by keeping Cobra's vehicles operational. He often appears in the background of Cobra operations, ensuring their machines of war are ready for action.