No pictures, but yes, it's a small gear segment that engages the flywheel after removing the starter. Rather than being bolted in, it has 2 machined pins that go through the bolt holes. The gear segment is machined, and the pins appear to be threaded in after the machining. It slipped in easily after aligning the teeth on the flywheel, but the tolerance is close, as there is no play in either the gear, or the pin to bolt fit.