I need to replace the drive trim indicator cables. They pass thru the transom below the water line. What sealant would be best to seal the opening. 4200?

We use this caulk for all the thru-transom cables.

3M™ Marine 101 Sealant
Provides a weatherproof, watertight seal between mechanically fastened joints to resist weathering and salt water. Non-sagging, non-shrinking, remains permanently flexible.

I like 5200