KTM 300 EXC Spark Plug
The KTM 300 EXC (250cc) takes an NGK BR7EIX spark plug, gapped to 0.028".
Key takeaways
- Iridium plug: NGK BR7EIX.
- Iridium upgrade available in the same fit.
- Gap: 0.028 inch - set it before fitting.
- Covers 1991-2006 (plug changed across years - see table).
Buy the plugs for your KTM 300 EXC
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 EXC spark plugs by year
| Years | Standard | Iridium | Gap |
|---|---|---|---|
| 2006 | - | BR7EIX | 0.028" |
| 1993-1995 | BR8ECM | BR9EIX | 0.024" |
| 1991-1992 | BR9EIX | - | 0.024" |
Frequently asked
What is the spark plug gap for a KTM 300 EXC?
The spark plug gap for the KTM 300 EXC 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 KTM 300 EXC?
Yes. The BR7EIX 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 EXC
We cover the other consumables for your machine too - the exact fit, cited, in one place.