3.9mm bullet connectors are widely used on all Japanese motorcycles. These are the professional solution to joining single wires on a motorcycle. They not only look neat and professional, but they are safe. These connectors are made from brass and are tin plated to protect against corrosion

We usually squirt a little Corrosion Block Grease or Electrical Silicone Compound into the female before finally inserting the male to give the joint an extra level of protection against the elements

We supply these non-insulated connectors with the insulators required. To use these connectors you will need a non-insulated crimp tool.