MerCruiser 50-806963A2 Arco 30460 OMC Starter 4cyl 140hp 3.0L 3.0LX 8" 1990-98 Steering Cables If you are using this

If you are using this for that application

Similar to the Johnson AD-10  Sea Horse and many others

Found on ONLY on 1100 STX 1999

Includes Magneto Timing Breaker Cam 510167 / 0510167 and other parts as pictured

Basically this would have been found on all alpha one models 1983-1990 when they switched over to the nylon tubes (roughly 87-90

MerCruiser 50-806963A2 Arco 30460 OMC Starter 4cyl 140hp 3.0L 3.0LX 8" 1990-98 Steering Cables If you are using thisPart Number(s) Included Arco Marine 30460 MerCruiser 50 806963A2 equivalent Starter Motor Assembly (8 inch) For 12 3 4" flywheels (2. 87" endcap) Manufacturer Arco Marine Replaces 50 812429A2 Delco Remy 9000763 General Application Compatibility This would have been found on Ford MerCruiser GM 3. 0L 3. 0LX 140hp 4cyl applications 1990 1998ish using a 12 3 4" flywheel with a straight across bolt mounting pattern and one of these smaller 8" gear