Fix-A-Thred 38181X Oxygen Sensor M18 Thread Repair Kit

* Contains all the tools necessary to permanently repair damaged oxygen sensor threads in the exhaust manifold.
* Designed for ease-of-use by professional mechanics and engine rebuilders as well as do-it-yourselfers.
* Contains an installation tool and proper size inserts
* Oxygen Sensor thread replacements increase future serviceability with high-temperature Inconel inserts that eliminate the need for exhaust manifold replacement