Not always. Honda OEM spark plugs can be iridium, platinum, or copper, depending on the engine and model year.
Understanding Honda's OEM spark plugs
The exact spark plug material Honda specifies for a given vehicle comes from the official parts catalog and the owner's manual. Here are the main factors that determine what material your car uses:
- Engine family and ignition system design
- Model year and generation of the vehicle
- Regional market and supplier arrangement (NGK or Denso, sometimes different in US vs. other regions)
- Part of the original equipment (OEM) specification versus aftermarket replacements
- Maintenance interval and emissions equipment requirements
In practice, this means there is no universal answer for all Honda models; some use iridium-tipped plugs, others use platinum or copper core plugs as OEM.
Are Honda's newer engines more likely to use iridium?
On many modern Honda engines, iridium or platinum plugs are used to extend service life and improve combustion efficiency. However, not every current model uses iridium; some continue to use platinum or copper core designs depending on the engine family and region. The safest step is to confirm with official documentation for your exact model and VIN.
How to verify for your vehicle
To confirm the material for your specific car, use these steps:
- Check the owner's manual or maintenance schedule for the recommended spark plug type and replacement interval.
- Look up the OEM spark plug part number in the Honda Parts Catalog by model year and VIN; the description will indicate material (iridium, platinum, copper).
- Cross-check the supplier on the box (NGK or Denso) and the part name; iridium-tipped plugs are explicitly marketed as such (e.g., "Iridium IX" or similar) by the supplier.
- If in doubt, contact an authorized Honda dealer or a trusted mechanic to verify the correct OEM plug for your engine.
Following the official specification ensures compatibility and warranty compliance, and helps maximize engine efficiency and longevity.
Summary
The simple takeaway: Honda OEM spark plugs are not inherently always iridium. They vary by engine, year, and market. To know for sure, consult the official Honda Parts Catalog for your VIN or your owner's manual, or ask a dealer. When in doubt, use the exact OEM replacement listed in the catalog rather than guessing based on generic brand marketing.
Which spark plugs does Honda use?
NGK Spark Plugs - Honda. NGK is the leader in Motorcycle Spark Plugs, with spark plugs for virtually every Motorcycle application in the world.
What company does Honda use for spark plugs?
Spark Plug
Vendor:nippon. Vendor #kj14cr-l11.
Does Honda use iridium spark plugs?
Modern Hondas equipped with long-life iridium or double-platinum spark plugs can go significantly longer between replacements: 100,000 to 160,000 kilometers.
What brand of spark plug is best for Honda?
NGK Spark Plugs
NGK Spark Plugs:
Preferred for import vehicles, particularly Japanese makes like Honda, Toyota, and Subaru.