12230 18mm O2 sensor thread chaser

Carbon buildup and corrosion can easily ruin the threads in your exhaust bung, making it nearly impossible to install a new oxygen sensor. This Lisle 18mm O2 sensor thread chaser is designed to clean and restore those existing threads using a 3/8-inch drive. It is important to note that this tool is for cleaning and straightening damaged threads, not for cutting brand new ones. This specific tool fits 2006 to 2009 Touring models, as well as 2006 to 2011 Dyna, Softail, XL Sportster, and V-Rod models. Keeping your O2 sensor threads clean ensures a proper seal and prevents cross-threading during your next exhaust service or sensor replacement.