So I finally gave up and ordered a spark plug from Polaris for my 2017 Polaris 450 HO because I was not sure what to use.  I figured when I got the plug I would cross reference and get an NGK.  Polaris sent me an Autolite 5923 which for the life of me I can not cross reference anywhere.  Searching this forum I see references to NGK  BKR5E, BKR6E or BKR7E.   I'm not sure what the differences in these plugs are?  I don't mind using the Autolite but I have always used NGKs in my machines.   Let me know what you are using and how its working out?  
Frustrated in FL :eek
	Frustrated in FL :eek

