The vendor part number is 27165. High-temperature silicone boots that can withstand heat up to 600 degrees. Extra Thick EPDM Layer of Insulation provides greater dielectric strength.
Works great, were installed on a 2007 harley davidson roadking. Checked resistance on both wires before installing and were good and close to one another. Bike runs great now that I replaced 14 year old wires. Even if your bike runs good but has some age to it like mine I
highly recommend these, you can thank me later.......