While not 100% sure, I think that the regular Vmax's (500-600) had a more narrow tunnel & therefore the seats were different.
The part number on Yamaha parts fiche shows a different number for the seats, the 500-600 start with 84B- & the Vmax4 starts with 8BW-
Maybe someone else can chime in here & give ya the 100% "ya sure" it will work answer ?? :2dontknow
I know I have been "surprised" by getting a few other body parts that I thought would cross over to the Max4 & they did not!!
Be sure before ya buy!!!:4fzfpi: