you are buying a GOOD used MerCruiser distributor  WITH A thunderbolt V IGNITION module mounted on distributor # 807829-1 AND COIL AND COMPLETE ENGINE WIRING HARNESS WITH BREAKER & SENSORS  came off working mercruiser  v6 VORTEC engine.#807829-1  4.3 LX / LXH ALPHA SEE PICTURES YOU GET WHAT YOU SEE IN PICTURES MAKE SURE ITS WHAT YOU NEED NO RETURNS