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Best spark plug for a 2022 Sportsman 450 HO

Ramsey7

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Joined
May 16, 2025
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I'm trying to figure out the best spark plug to use in my 2022 Sportsman 450 HO, any recommendations or personal experiences with certain brands or types? Thanks in advance
 
Go for NGK Iridium plugs. I don't know the exact number, but just do a quick search and you'll find the right one.
 
OEM plug is usually the safest bet, it's what the machine was designed to run with, so you know it'll fit and fire right but people still switch to the NGK Iridium, it's a good upgrade if you're looking for better starts and longer life
 
Using NGK Iridium plugs is definitely a great choice,you'll get better starts and they tend to last longer. That said, the original equipment manufacturer (OEM) plug does the job just fine if you're keeping everything stock. It really comes down to whether you want something that lasts longer or if you're happy with what Polaris originally designed. Have you had any problems, or are you just considering an upgrade?
 
I'm trying to figure out the best spark plug to use in my 2022 Sportsman 450 HO, any recommendations or personal experiences with certain brands or types? Thanks in advance
I guess we're all saying the same thing here hmm... I've been running NGK Iridium in mine for the past year. Now it starts easier, especially in the cold. No complaints so far. Let's see if it'll be the same till next winter.
 
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