Honda VTX1800R/S Spark Plug
The Honda VTX1800R/S (1800cc) takes an NGK IFR5L-11 spark plug, gapped to 0.044".
Key takeaways
- Iridium plug: NGK IFR5L-11.
- Iridium upgrade available in the same fit.
- Gap: 0.044 inch - set it before fitting.
- Covers 2002-2007.
Buy the plugs for your Honda VTX1800R/S
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 is the spark plug gap for a Honda VTX1800R/S?
The spark plug gap for the Honda VTX1800R/S is 0.044 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 VTX1800R/S?
Yes. The IFR5L-11 is the iridium version of the null - same fit, longer life, and a slightly stronger spark. It is a straight upgrade.
More parts for your Honda VTX1800R/S
We cover the other consumables for your machine too - the exact fit, cited, in one place.