The reason the fill plug strips is because of the way it is made. Look in it and you will see 5 tabs made by a press pushing a tool in to make the corners. The fix is to use a small sharp chisel to brake off the tabs. They keep the hex tool from going to the bottom, leaving a very small contact area that is easy to strip. If you strip it, remove the tabs and gently. tap the hex drive in to the bottom. It will go a long way in. Now you are ready to back it out. DO NOT USE STEADY HARD PRESSUE. Do use JERKS until it pops loose. There is magic in the jerks over steady pressure. Other thing, invest in a 3/8" hex socket set and forget the Allen wrench. I hate being ripped off for a replacement. $30??? For a $5 item. Come on Polaris. Be reasonable. Sure must be someplace on line to buy a standard plug like this for much less. It is not custom made for Polais.