The NGK Spark Plug – SILMAR9A9S is a NGK motorcycle part or accessory for the application identified below. The confirmed fitment, construction, package and product reference details are gathered here to help prevent an incorrect purchase.

Before ordering, compare the exact part reference, dimensions, motorcycle model and model year with the component being replaced or upgraded.

• The SILMAR9A9S is the colder heat range 9 version of NGK’s laser iridium 10 mm plug the choice where the engine runs harder and hotter
• Match the heat range to your manual’s spec
• Heat range 9 (colder than the 8) for high-load and high-rpm use
• Fine-wire iridium centre electrode with a platinum-tipped ground electrode for long service life
• M10 x 1.0 thread, 26.5 mm reach, 14 mm hex, gasket seat
• Pre-set gap of 0.9 mm and roughly 5k ohm resistor value
• Pure alumina ceramic insulator and copper core to move heat away from the firing end