I just got some new (used) props and they have these numbers stamped on the hub under where the washer goes. Can anyone tell me what they mean? They are Merc 4 blades.

Starboard-W 5344

Port- S 5469


Thanks in advance,
Craig

Those are the SPIN numbers "Stolen Prop Idenfication Numbers" that mysterisly appear on props that have been reported stolen. They have a gps sensor inside them that starts after the numbers appear to alart the authorities, you should be contacted soon.

Dang it!!! I did get 'em for a good price.

Those are not Merc numbers. They are more likely a race team identification or another prop shops numbers. Every Merc prop has Merc numbers. If ther are other numbers stamped, we can decode them. If there are no others, some one removed them.

Brett