This kit contains two anodes that are not included in the Bravo 2,3 kit and should be installed in addition to the anodes in the basic kit.

Mercruiser now recommends aluminum anodes for both salt and brackish water; zinc anodes no longer advisable for Mercruiser 

 

Includes: one 762144 trim tab anode

              one 865182C prop nut anode

 

Reason for this kit:  almost all anode kits for the Bravo 2 & 3 drives include the anodes that work for both those drive types. But the later model Bravo 3 drives require additional anodes that are not required on the Bravo 2 or early Bravo 3 drives. So, they package these extra anodes separately, rather than in the basic anode kit.