New Brain Tarp made aftermarket replacement half-wave rectifier. 
Please check your wire ends before ordering, some of these had bullet terminals and others had male and female spade connectors.
This part has bullet terminals, check my other listings for the parts with spade connectors. 

Replaces Yamaha Part Numbers 
315-81970-61
315-81970-61-00

It has come to my attention that sellers are stealing my photos and using my text word for word. 

This is a real part. You will receive an identical rectifier to the one in the photo, and not a Chinese knock-off. 


If your Yamaha rectifier looks like this unit or is slightly shorter, this will work for you.

I personally assemble each rectifier using the best parts that I can source. 
I stand by my products and if you have an issue, I respond to my messages daily.