KTM 300 MXC Spark Plug

The KTM 300 MXC (300cc) takes an NGK BR8ECMIX spark plug, gapped to 0.024".

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Key takeaways

  • Iridium plug: NGK BR8ECMIX.
  • Iridium upgrade available in the same fit.
  • Gap: 0.024 inch - set it before fitting.
  • Covers 1996-2005 (plug changed across years - see table).
Standard Plug-
Iridium UpgradeBR8ECMIX
Gap0.024"
Verified fitLast checked
Reviewed by the CrankDex editorial team against manufacturer and retailer fitment data.

Buy the plugs for your KTM 300 MXC

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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KTM 300 MXC spark plugs by year

YearsStandardIridiumGap
1997-2005-BR8ECMIX0.024"
1996-BR8EIX0.024"

Frequently asked

What is the spark plug gap for a KTM 300 MXC?

The spark plug gap for the KTM 300 MXC is 0.024 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 KTM 300 MXC?

Yes. The BR8ECMIX is the iridium version of the null - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.

More parts for your KTM 300 MXC

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

More KTM spark plugs