NGK Iridium IX. A 0.6mm fine-wire iridium centre electrode in place of a conventional one, firing a sharper, more focused spark.
On the 348cc single that means easier cold starts, a steadier idle and cleaner combustion, and an electrode that barely erodes so the gap holds long after a nickel plug would have widened.
Direct fit. Nothing to adjust.
Find your bike
Honda 350 Single cylinder, takes 1
- H'ness CB350
- CB350
- CB350RS
- CB350C
All four take the same plug. The selector above simply tells us which bike it is going on.
Riding a Hornet 2.0, Unicorn, X-Blade, NX 200 or CB500X? Those use the same CPR8EAIX-9. It is on our site as a separate listing.
Specifications
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Part number · CPR8EAIX-9 · NGK stock 95134
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Type · Iridium IX, 0.6mm fine wire
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Thread · 10mm · Reach 19mm · Hex 16mm
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Seat · gasket · Heat range 8
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Gap · 0.9mm, factory pre-set
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Conventional equivalent · CPR8EA-9
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Sold as · single plug
Fitting
Arrives pre-gapped and ready to fit. Thread in by hand first, then torque to your manual's figure. If you check the gap, move the outer electrode only.
Unsure which you need? Send us your bike and year and we will confirm before you order.