Help Identifying Perkins Starter

[Mimi.Marine.23]

Hi, I work at a local repair shop here in the Keys. I been having a hard time trying to find this starter and any informartion about it. I tried pathfinder and other places. Can someone please assist me with this?
Engine number i got is AR50750 U224690H. It has 10 tooth. I can see the rotation of the starter. Any assistance would be appreciated.

Here is some pictures of starter, It was submerged in salt water.

Thank you,
Mimi. Marine. 23

[skipperpete]

Try Parts4 engines in the UK, that’s probably a Perkins 1004-42 phaser. Is it on a gen set?
You probably have more work to do other than just the submerged starter, usually for that level of water, the drive plate and rear crankshaft oilseal must have been submerged, not to mention the ACgenerator or Gearbox.