Which component is least likely to be replaced during a clutch replacement?

The input gear is the component least likely to be replaced during a clutch replacement because it is typically part of the transmission rather than the clutch assembly itself. During a standard clutch replacement, the primary components that are usually replaced include the pressure plate, the release bearing, and the flywheel.

The pressure plate presses against the clutch disc to engage the clutch, while the release bearing facilitates disengagement when the clutch pedal is pressed. The flywheel may be resurfaced or replaced if it shows signs of wear or damage. In contrast, the input gear is generally not affected by clutch wear and does not need attention unless there are specific issues with the transmission. Therefore, while the other components are integral to the clutch's interaction with the engine, the input gear's role is separate, reducing its likelihood of being replaced during this service.