Manufactured specifically for 2004-2006 Harley Davidsons, this plug features our Super Seal, a built-in O-ring with a 15-degree taper.
This plug fits primarily earlier American cars. The wide version is signified by the W and features a large precision flange area for great sealing properties.
Sometimes there is not enough room to use the wide head version of this plug, so we created one with a narrow head flange.
This plug is customized for Harley Davidson bikes - SS stands for super seal, a built-in O-ring with a 15-degree taper which allows you to replace the plug without using sealant or purchasing a new O-Ring.
Mini Cooper S supercharger and GM V6 Eaton "roots" blower plug, among other applications.