NGK GR9DI-8 Spark Plug - Iridium Racing
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The NGK GR8DI-8 is a high-performance spark plug developed for the racing world, ideal for kart and competition motorcycle engines that demand maximum combustion efficiency and durability under stress. The fine iridium center electrode ensures a strong and consistent spark, reducing the risk of misfire even at high RPMs.
With heat range 8, M14 × 1.25 mm thread, 19 mm thread length and 16 mm hex size, it offers excellent thermal stability and reliability. Thanks to NGK Iridium technology, it guarantees long service life even under extreme operating conditions.
Key Features:
Brand: NGK, world leader in racing spark plugs
Model: GR8DI-8
Heat range: 8 (iridium, racing)
Thread: M14 × 1.25 mm
Thread length: 19 mm
Hex size: 16 mm
Gap: ~0.6 mm
Center electrode: fine-tip iridium
Type: resistor (with integrated resistance)
Seat: gasket seat
Applications: karts, racing motorcycles, high-performance racing engines
Recommended with spark plug cap code K188-H
A technological and durable spark plug, perfect for those who want precise ignition, maximum power, and longer life compared to traditional nickel plugs.
With heat range 8, M14 × 1.25 mm thread, 19 mm thread length and 16 mm hex size, it offers excellent thermal stability and reliability. Thanks to NGK Iridium technology, it guarantees long service life even under extreme operating conditions.
Key Features:
Brand: NGK, world leader in racing spark plugs
Model: GR8DI-8
Heat range: 8 (iridium, racing)
Thread: M14 × 1.25 mm
Thread length: 19 mm
Hex size: 16 mm
Gap: ~0.6 mm
Center electrode: fine-tip iridium
Type: resistor (with integrated resistance)
Seat: gasket seat
Applications: karts, racing motorcycles, high-performance racing engines
Recommended with spark plug cap code K188-H
A technological and durable spark plug, perfect for those who want precise ignition, maximum power, and longer life compared to traditional nickel plugs.
NGK GR9DI-8 SPARK PLUG - IRIDIUM RACING