NGK 6R12 Iridium Spark Plug – Harley-Davidson OEM Replacement (Part #32362-04A)

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.