Honda CBX Spark Plug
The Honda CBX (1050cc) takes an NGK DR8EA spark plug, gapped to 0.035".
Key takeaways
- Spark plug: NGK DR8EA.
- Iridium upgrade: NGK DPR9EIX-9.
- Gap: 0.035 inch - set it before fitting.
- Covers 1982-1983 (plug changed across years - see table).
Buy the plugs for your Honda CBX
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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Honda CBX spark plugs by year
| Years | Standard | Iridium | Gap |
|---|---|---|---|
| 1983 | DR8EA | DPR9EIX-9 | 0.035" |
| 1982 | CR9E | - | - |
Frequently asked
What spark plug does a Honda CBX take?
The Honda CBX takes an NGK DR8EA spark plug, gapped to 0.035 inch. The iridium upgrade is the DPR9EIX-9. See the by-year table for earlier models.
What is the spark plug gap for a Honda CBX?
The spark plug gap for the Honda CBX is 0.035 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 CBX?
Yes. The DPR9EIX-9 is the iridium version of the DR8EA - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Honda CBX
We cover the other consumables for your machine too - the exact fit, cited, in one place.