The bulb glass shape is PAR56
It’s a 7 inch headlight
The 6V is a H6006
The 12v is a H6024
So search the internet for a H6024
And in my opinion Phillips and Sylvania are the only two brands worth considering.
Also careful with old junk yard bulbs they can be full of air and ohm out okay but burn out as soon as power is applied (inside fills with white smoke as the filament burns in the air).
$13.42 on Amazon
https://www.amazon.com/dp/B00SQU3F8K-s
