i am trying to buy a rear rack for my 500 H.O but i am having a hard time because their is 3 different model number for my 4wheeler ending in AA,AQ and something else.which one do i pick?

 

If I have for instance a Sportsman 500 with model #A06MH50AF, and I see a part that says its for #A06MH50AA/AD/AF/FB, that means the part will fit those four different models. Since mine in this example is the AF model, the part number having "AF" in it will fit my model.

Hope this helps.

 

I believe the last two letters just indicate the color (red, blue, camo....). So if you are buying a part independent of color, such as the rear rack, it doesn't matter. For those type parts, it is usually listed like Sheep shows, with all 4 suffixes. Now, if you are buying replacement plastic body pieces, the suffix matters.