Honda CR500R Spark Plug

The Honda CR500R (400cc) takes an NGK BR8EG spark plug, gapped to 0.028".

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Key takeaways

  • Spark plug: NGK BR8EG.
  • Iridium upgrade: NGK DR8EIX.
  • Gap: 0.028 inch - set it before fitting.
  • Covers 1978-1979.
Standard PlugBR8EG
Iridium UpgradeDR8EIX
Gap0.028"
Verified fitLast checked
Reviewed by the CrankDex editorial team against manufacturer and retailer fitment data.

Buy the plugs for your Honda CR500R

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 Honda CR500R take?

The Honda CR500R takes an NGK BR8EG spark plug, gapped to 0.028 inch. The iridium upgrade is the DR8EIX.

What is the spark plug gap for a Honda CR500R?

The spark plug gap for the Honda CR500R 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 Honda CR500R?

Yes. The DR8EIX is the iridium version of the BR8EG - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.

More parts for your Honda CR500R

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

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