This classic motorcycle tail light is grounded through the mount and has two wires

Light and compact

Housing Length 40"

the Panhead

Price is for a set of two mounts

Lucas 5K Resisitor Type Spark Plug Cap Subcategory_Engine Gaskets & Seals This classic motorcycle tail lightThis Lucas 5k resistor cap is perfect for electronic ignition systems like Tri Spark, Boyer, Pazon, etc. This waterproof 90 spark plug terminal fits 7mm and 8mm wire, and is designed for a threaded terminal spark plug. To install screw into spark plug wire, unscrew the terminal on your spark plug, and push on for positive and waterproof connection. Resistor spark plug caps are suggested with electronic ignitions to help suppress radio interference