Honda CBR900RR Spark Plug
The Honda CBR900RR (900cc) takes an NGK CR8EH-9 spark plug.
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Key takeaways
- Spark plug: NGK CR8EH-9.
- Iridium upgrade available in the same fit.
- Set the gap to the manual spec before fitting.
- Covers 1993-2007 (plug changed across years - see table).
Verified fitLast checked
Reviewed by the CrankDex editorial team against manufacturer and retailer fitment data.
Buy the plugs for your Honda CBR900RR
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 CBR900RR spark plugs by year
| Years | Standard | Iridium | Gap |
|---|---|---|---|
| 2002-2007 | CR8EH-9 | - | - |
| 1993-1999 | DR8ES | CR9EHIX-9 | 0.035" |
Frequently asked
What spark plug does a Honda CBR900RR take?
The Honda CBR900RR takes an NGK CR8EH-9 spark plug. See the by-year table for earlier models.
Can I use an iridium plug in a Honda CBR900RR?
Yes. The iridium version drops into the same spot - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Honda CBR900RR
We cover the other consumables for your machine too - the exact fit, cited, in one place.