NGK MAR8AI-10DS / 92997 Iridium Spark Plug Petrol Ignition Replaces 12128396344

The NGK MAR8AI-10DS / 92997 Iridium Spark Plug is designed for petrol ignition with BMW R18 Cruiser and Adventure models. It features the smallest tip diameter among OE iridium plugs, delivering superior ignitability and extended service life. Its iridium/platinum surfaces resist wear, ensuring stable idle and excellent anti-fouling. A laser-welded iridium center electrode tip, paired with a platinum disc welded to the ground electrode, provides long life and reliable performance. Triple-plating enhances corrosion and anti-seize properties, enabling faster starts, quicker acceleration, improved fuel economy, and lower emissions. This premium OEM-grade spark plug delivers sustained reliability and efficiency for demanding riding conditions.