Mercruiser alpha one serial number for ratio

[Walleypower]

Hi guys new too site. I have two legs. What are the ratio motor 5673854. Leg 603782 bell 5697113 and a spare leg 5715701

[admin]

I'm sorry, we are unable to look up Mercruiser serial numbers that old. We can only look them up from when they started using a letter in them. I can put a 0A in front and it tells me its an MC1, but that's it. I would suggest pulling the top cap and counting the teeth to figure out the ratio.

Thanks,

Tech Support