NGK CR9EH-9 spark plug

The NGK CR9EH-9 spark plug is a proven choice for motocross and enduro when you need a sure start, clean engine running and stable performance. It helps maintain proper combustion even under higher loads and is ideal as a service replacement or as a stock spark plug for racing.

     -  reliable cold and hot starts

     -  stable performance and clean engine operation

     -  suitable for demanding off-road conditions

     -  ideal as a quick replacement for the pit / for racing

     -  Wrench size: 16 mm

     -  External thread: 10 mm

     -  Filament diameter: 19 mm

     -  Spark location: 1.65 mm

    -  Unscrewable M4 end cap

    -  Center electrode: nickel

    -  Outer electrode: standard design

    -  Interference suppression: 5 kOhm

    -  Sealing: flat sealing seat

NGK standard spark plugs are designed for a long life and optimal performance even under load.

     -  Trivalent metal plating for excellent anti-corrosion and anti-stick properties

     -  Waviled insulator ribs prevent spark jump

     -  Aluminosilicate ceramic insulator for higher strength and better heat transfer

     -  Copper core for efficient heat dissipation

     -  Triple seal for leak protection

The combination of letters and numbers on each NGK spark plug is not just a type name, but a standardized code that precisely determines the design and properties of the spark plug. This makes it easier to select the right spark plug for the engine (original manufacturer, service, workshop and customer).

     -  1st to 4th positions (letters): thread diameter, wrench size and design type

     -  5th position (number): thermal value

     -  6th position (letter): thread length

     -  7th position (letter): special design features

     -  8th position (number): electrode distance (coded)