The sump guard, also known as an oil sump guard or skid plate, is a protective component mounted on the underside of a motorcycle. It shields the engine's oil sump and other vulnerable parts from damage caused by impacts, rocks, debris, or rough terrain. Typically made from durable materials such as aluminum, steel, or high-strength plastic, the sump guard helps prevent oil pan punctures and protects critical engine components during off-road riding or in harsh conditions.