Honda CB750K Spark Plug
The Honda CB750K (750cc) takes an NGK DR8EA spark plug.
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Key takeaways
- Spark plug: NGK DR8EA.
- Iridium upgrade available in the same fit.
- Set the gap to the manual spec before fitting.
- Covers 1982-1994 (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 CB750K
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 CB750K spark plugs by year
| Years | Standard | Iridium | Gap |
|---|---|---|---|
| 1994 | DR8EA | - | - |
| 1982-1983 | DR8EIX | - | 0.028" |
Frequently asked
What spark plug does a Honda CB750K take?
The Honda CB750K takes an NGK DR8EA spark plug. See the by-year table for earlier models.
Can I use an iridium plug in a Honda CB750K?
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 CB750K
We cover the other consumables for your machine too - the exact fit, cited, in one place.