Honda SL350 Spark Plug
The Honda SL350 (350cc) takes an NGK DR8EA spark plug, gapped to 0.028".
Key takeaways
- Spark plug: NGK DR8EA.
- Iridium upgrade: NGK BR8EIX.
- Gap: 0.028 inch - set it before fitting.
- Covers 1974-1978.
Buy the plugs for your Honda SL350
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.
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently asked
What spark plug does a Honda SL350 take?
The Honda SL350 takes an NGK DR8EA spark plug, gapped to 0.028 inch. The iridium upgrade is the BR8EIX.
What is the spark plug gap for a Honda SL350?
The spark plug gap for the Honda SL350 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 SL350?
Yes. The BR8EIX 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 SL350
We cover the other consumables for your machine too - the exact fit, cited, in one place.