I have Minn Kota 12V 55 thrust Power Drive and need to extend the wires. My out transom motor uses 10g, but this one looks larger.

Does anyone have any idea.

I think the most common is 6 ga.

If you are running wire from the stern to the bow I would recommend 6 GA.  If the extension is only a few feet, 8 GA will be fine.

Ya I would go with 6 to be safe.

I think the most common is 6 ga.

2X

I think the most common is 6 ga.

2X

They speak the truth 3x.

It may sound jakey, but I actually use green outdoor extension cord (heavy duty) 6ga. It is very good for outdoor use, looks good and it is 3 wire so you always have a spare in the jacket...... plus, it is exponentially cheaper than any wire I have used.

It may sound jakey, but I actually use green outdoor extension cord (heavy duty) 6ga. It is very good for outdoor use, looks good and it is 3 wire so you always have a spare in the jacket...... plus, it is exponentially cheaper than any wire I have used.

Perhap you can show a link to the extension cable you used.  I can't seem to google up any 6 gauge outdoor extension cables. 

Generator extension cable!!!

Hoss fly, I'm with you on 6ga wire. Need some cooperation though on where to find it. But I'm with you no worries. Let me find a store? ;D

The store is going to get hugh with me on your side.

The best supplier of GOOD marine 6 ga wire is a boat dealer. The wire they use is more flexible with thicker insulation.

The cheapest supplier would be a Lowes's or Home Depot for the stiffer/less flexible version used in building construction.

I used a set of jumper cabled took the ends off and crimped on the new ends

I get the extension cable off the spool from home depot.