Hitachi GT Spark Plug (12mm)

This a Hitachi GT Spark Plug. These were known to come with the earliest motorcycle models such as Honda,Yamaha, and Harley-Davidson!

Product Specs:

• Universal Part - Will fit many custom makes and models
• Known to come with the earliest motorcycle models such as Honda,Yamaha, and Harley-Davidson.
• Utilize the chart below a long with your owner`s manual to see if it will replace your existing plug!
• Thread Size: 12mm
• Thread Pitch: 1.25
• Hex Size: 11/16"

Hitachi Sparkplug Cross-Reference Chart

• Replacement spark plugs for Hitachi M23W:
  Denso X24FS-U
  Denso X24FSU
  NGK 2625
  NGK 7112
  NGK D8H
  Reach: 1/2" (12.7mm)
  Gap: .020" (0.5mm)
  
  
• Replacement spark plugs for Hitachi M24-PW:
  NGK 6512
  NGK D6HA