Time-Sert 1815Sensor M18x1.5 O2 SENSOR Thread Repair Kit to repair threads in the exhaust pipe for the Oxygen sensor. Installs a stainless steel insert which resists rust which is important in the highly corrosive environment that exists a car or trucks exhaust system. Better than Helicoil because Time Sert is a solid bushing type insert rather than a thin coil of wire like Heli Coil uses.

Time-Sert Metric Thread Repair Kits

KIT CONTAINS

Reamer 3.2" Long

Tap 4.5" Long and Guide

Installation Driver 4" Long 

5 Stainless Steel Inserts M18x1.5 Metric 7.5mm Long PN 18152NF

Time-Sert Metric Thread Repair Demonstration Video