Honda CL450 Spark Plug
The Honda CL450 (400cc) takes an NGK DPR8EA-9 spark plug, gapped to 0.028".
Key takeaways
- Spark plug: NGK DPR8EA-9.
- Iridium upgrade: NGK DR8EIX.
- Gap: 0.028 inch - set it before fitting.
- Covers 1983.
Buy the plugs for your Honda CL450
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 CL450 take?
The Honda CL450 takes an NGK DPR8EA-9 spark plug, gapped to 0.028 inch. The iridium upgrade is the DR8EIX.
What is the spark plug gap for a Honda CL450?
The spark plug gap for the Honda CL450 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 Honda CL450?
Yes. The DR8EIX is the iridium version of the DPR8EA-9 - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Honda CL450
We cover the other consumables for your machine too - the exact fit, cited, in one place.