The NGK Iridium MR9DI-7 spark plug is a premium OEM replacement designed for 4-stroke motorcycle engines, offering superior ignition performance and exceptional durability.
Key Features
Iridium center electrode for enhanced wear resistance and longer service life.
Consistent spark delivery for optimized combustion and throttle response.
Original part number 1A015311 ensures perfect fit for many Aprilia/Piaggio models.
Standard 16 mm wrench size and suitable thread length for easy maintenance.
Benefits of Iridium Technology
Iridium alloy resists erosion for extended spark plug life.
Improved ignition efficiency and engine response.
Reduced fuel consumption and emissions compared to conventional plugs.