Made in the USA, Time-Sert deep spark plug re-thread kit, p/n 4412E-111, for M14x1.25 plugs. Had a spark plug blow out on my 98 BMW 528i, and used this kit one time for the repair. Easy to use, comes with instructions. Kit includes all the tools to make the repair, instructions, and 4 inserts. Originally bought from the Time-Sert web site for $240.00.
For applicability for your auto, go to Time-Sert web site