For sale is a MerCruiser thunderbolt distributor assembly for marine use GM 5.0 and 5.7 liter sterndrive applications. This distributor is in working condition. Gear is in great shape and unit turns over smoothly. 

NOTE: One of the bolts that hold the cap on is BROKEN off in the housing, it did not have an effect on operation! 
 
See pics. 

If you have any questions or need to see additional pictures, please ask!!