Hey all…
I ran into this and thought some may be interested.
I found a seller on eBay that has the same 6-pole SSS 2030kv motors that Pro Marine had stamped with their name on them.
These are $15 cheaper ($65) then the $80 Pro Marine.
Only difference appears to be the name on the motor and these do not include the coolers like the Pro Marine motors.

SSS Motor $65 (No Cooler)
https://www.ebay.com/itm/SSS-3656-20...MAAOSwh9hZ6aiH

Pro Marine SSS Motor $80 (with Cooler)
https://www.promarinerc.com/product-...-limited-motor