Spark Plug BM6A - Nickel V‑Groove Electrode | 4Boats

NGK BM6A nickel spark plugs feature a specially designed V‑Groove centre electrode for improved ignitability and consistent spark. The BM6A is a reliable nickel spark plug suited to small marine outboards and petrol engines, commonly found on many 2‑stroke and 4‑stroke outboards - check your engine manual for exact suitability.

• Model: BM6A
• Electrode: V‑Groove centre electrode for improved ignition
• Material: nickel centre electrode with nickel‑plated shell for corrosion resistance
• Application: small marine outboards and petrol engines; suitable for many 2‑stroke and 4‑stroke models (confirm with your manual)
• Heat range: see product packaging for the NGK heat range number for your market
• Typical gap: factory pre‑gapped (typical ~0.7-0.8 mm; confirm and adjust to your engine spec)
• Thread size / reach / hex size / terminal type: check the product listing or engine manual for exact dimensions and terminal style
• Resistor: confirm on product label if a resistor type is required for your ignition system
• Part number: check the product listing or packaging for the NGK stock number applicable to your region
• Fitment notes: suitable for engines specifying BM6A; always verify model compatibility before purchase
• See our Spark Plugs collection and related Engine Maintenance and Boat Consumables collections for compatible replacements and related parts

Check your engine manual for compatibility and replace spark plugs at the recommended service intervals to maintain performance and fuel efficiency. If uncertain, refer to the product packaging or contact the engine manufacturer to confirm exact spark plug dimensions and heat range.