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Discussion Starter #1
Hello. I'm new to the forum and still figuring where to post my query. I want to buy some replacement plugs for my 2018 450 HO and prefer to get NGK, but don't know their part #'s. I've been reading on forums that a lot of riders/owners prefer NGK, and I've not heard great things about Polaris' factory plugs. I've got one starting to foul now but still have a factory replacement until I can find the NGK's. Any help is appreciated.
 

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The std plug is BKR6E and the EIX is the Iridium version - the 7 is one heat range colder - I consulted with NGK also and Richard suggested the 6 as an equivalent for the OEM Autolite 5923 - a colder plug won't hurt anything but could be more prone to fouling as compared to the 6
 

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The std plug is BKR6E and the EIX is the Iridium version - the 7 is one heat range colder - I consulted with NGK also and Richard suggested the 6 as an equivalent for the OEM Autolite 5923 - a colder plug won't hurt anything but could be more prone to fouling as compared to the 6
Don’t remember the the NGK tech’s name but he did recommend the BKR7EIX to me over the BKR6EIX. Sounds like NGK in-house fighting!
Just might return those 7’s for the 6. Why take a chance on a fouled plug!!!
 

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It's just a matter of heat range - 7 is just a greater chance of fouling unless the engine is to full operating temp each time it's run - 7 being colder just means it needs to run longer after the engine reaches operating temp to burn the electrodes clean.
 

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Discussion Starter #7
Hello. I'm new to the forum and still figuring where to post my query. I want to buy some replacement plugs for my 2018 450 HO and prefer to get NGK, but don't know their part #'s. I've been reading on forums that a lot of riders/owners prefer NGK, and I've not heard great things about Polaris' factory plugs. I've got one starting to foul now but still have a factory replacement until I can find the NGK's. Any help is appreciated.
It's just a matter of heat range - 7 is just a greater chance of fouling unless the engine is to full operating temp each time it's run - 7 being colder just means it needs to run longer after the engine reaches operating temp to burn the electrodes clean.
Hello. I'm new to the forum and still figuring where to post my query. I want to buy some replacement plugs for my 2018 450 HO and prefer to get NGK, but don't know their part #'s. I've been reading on forums that a lot of riders/owners prefer NGK, and I've not heard great things about Polaris' factory plugs. I've got one starting to foul now but still have a factory replacement until I can find the NGK's. Any help is appreciated.
Thank you, sir! I'll go see if I can find a couple locally tomorrow.
 
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