Chevy short block, Dodge Hemi, Mazda rotary, Cummins diesel, Kubota diesel, Jacobson two-stroke, Wisconsin four-stroke, or vintage Maytag? Each one of these takes a different starter and there are about 100 more we would need to look at.
What brand engine? What size engine? Electric starter? Recoil starter? 12VDC? 120VAC? The technicians on this site have all been struck by COVID, so our psychic powers are extremely weak. Please answer the questions I posted, plus include all engine numbers so we can have a better picture of what you want. Remember we aren’t standing next to you with a very strong drink in hand to see what you are talking about.