Honda CX500 Spark Plug
The Honda CX500 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 1979-1981.
Verified fitLast checked
Reviewed by the CrankDex editorial team against manufacturer and retailer fitment data.
Buy the plugs for your Honda CX500
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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Frequently asked
What spark plug does a Honda CX500 take?
The Honda CX500 takes an NGK DR8EA spark plug.
Can I use an iridium plug in a Honda CX500?
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 CX500
We cover the other consumables for your machine too - the exact fit, cited, in one place.