Arctic Cat 650 4x4 Automatic Spark Plug

The Arctic Cat 650 4x4 Automatic (550cc) takes an NGK CPR8E spark plug, gapped to 0.028".

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Key takeaways

  • Spark plug: NGK CPR8E.
  • Iridium upgrade: NGK CR8EIX.
  • Gap: 0.028 inch - set it before fitting.
  • Covers 2009-2010.
Standard PlugCPR8E
Iridium UpgradeCR8EIX
Gap0.028"
Verified fitLast checked
Reviewed by the CrankDex editorial team against manufacturer and retailer fitment data.

Buy the plugs for your Arctic Cat 650 4x4 Automatic

The standard plug is the exact-fit replacement. The iridium version drops into the same spot, lasts longer, and fires a little stronger for a few dollars more. Many engines take more than one - check how many cylinders you have.

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Frequently asked

What spark plug does a Arctic Cat 650 4x4 Automatic take?

The Arctic Cat 650 4x4 Automatic takes an NGK CPR8E spark plug, gapped to 0.028 inch. The iridium upgrade is the CR8EIX.

What is the spark plug gap for a Arctic Cat 650 4x4 Automatic?

The spark plug gap for the Arctic Cat 650 4x4 Automatic is 0.028 inch. Check and set the gap before fitting a new plug - most powersports plugs need a small adjustment out of the box.

Can I use an iridium plug in a Arctic Cat 650 4x4 Automatic?

Yes. The CR8EIX is the iridium version of the CPR8E - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.

More parts for your Arctic Cat 650 4x4 Automatic

We cover the other consumables for your machine too - the exact fit, cited, in one place.

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