The NGK BU8H is an original surface gap spark plug, developed specifically for high-power 2-stroke outboard motors from Mercury and Mariner. Its design, without a traditional ground electrode, makes the spark plug particularly well-suited for high-performance 2-stroke engines, providing a stable spark, high reliability, and reducing the risk of fouling.
NGK is the world's leading manufacturer of spark plugs and an original equipment supplier to a wide range of engine manufacturers. The BU8H is manufactured with a copper core for efficient heat dissipation and features a surface gap design that provides consistent ignition under demanding operating conditions. The spark plug is used, among others, on several Mercury and Mariner V6 2-stroke outboard motors of 135-300 HP, including Magnum, Sea Drive, and EFI models.
Key features
- Original NGK spark plug
- Surface gap design
- Suitable for high-performance 2-stroke outboard motors
- Copper core for optimal heat dissipation
- Reduces the risk of fouling
- Stable spark at high RPMs
- Corrosion-resistant construction
- OEM quality
- Suitable for Mercury and Mariner V6 2-stroke engines
