This is a new aftermarket replacement for KZ550 LTD GPZ Shaft Spectre Igniter (CDI).
The original markings may have been stamped on it: Fuji Electric, IC Igniter, F8T50272, 21119-1017, 21119-1040, 21119-1429 (The original part is show in the photo above)
The factory unit should have this marking on it F8T50272. If your unit has a different marking, please include it on the checkout notes section when placing an order.
The new replacement ignition unit larger and will mount differently than the original part. Part is a plug and play (see orange part)
This unit has some improvements over the stock unit: