Keep your Harley-Davidson running at peak performance with the NGK 6R12 Iridium IX Spark Plug — the OEM-specified replacement plug for select Harley-Davidson models. Engineered for high-performance engines, the Iridium IX series delivers a consistently stable spark, superior durability, and long service life.
Why NGK Iridium IX?
NGK’s Iridium IX plugs are built for the performance enthusiast. The ultra-fine iridium alloy center electrode has an extremely high melting point, making it ideal for today’s high-output, high-tech engines. You get a hotter, more reliable spark with every firing cycle.
Key Features
- Fine wire iridium center electrode — exceptional durability and stable spark performance
- Trivalent metal plating — superior anti-corrosion and anti-seizing protection
- Corrugated ribs — prevent flashover for reliable ignition
- Pure alumina silicate ceramic insulator — superior strength and optimized heat transfer
- Copper core — aids in efficient heat removal
- Triple seals — prevent combustion leakage
Specifications
- NGK Part Number: 6R12
- Harley-Davidson OEM Part Number: 32362-04A
- Type: Iridium IX
- Product Type: Spark Plug
- Vendor: Harley-Davidson / NGK
Always verify fitment with your specific model year and engine configuration before purchasing.
