NGK Spark Plug – D8EA

The NGK Spark Plug – D8EA 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 NGK D8EA is the colder sibling of the D7EA, aimed at motorcycle engines that run harder or hotter
• A straightforward nickel plug that does its job without fuss
• NGK code breakdown: 12 mm thread diameter, heat range 8, 19 mm reach
• Non-resistor design (no R in the code) where the manufacturer specifies it
• Colder heat range 8 helps resist pre-ignition under sustained load
• Copper-cored centre electrode for reliable ignition and heat transfer
• Match the code and gap to your bike’s manual before fitting