5 out of 5
Customer Reviews
Items 1 - 14 of 14 reviews
1
By
Kindle Customer
Date: November 26, 2025
Why did you pick this product vs others?: Was strongly recommended by professional mechanics. Did really help to do the new thread.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By
Nicholas
Date: November 14, 2025
Seemless repair, equipment gave allot of confidence in the whole process feeling very well built. Worth every dollar.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
George
Date: April 06, 2025
Tool worked even better than they described. Only tool for rethreading spark plug holes I'll use from now on!
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
L B
Date: September 13, 2024
That' it helped fix the problem i was having
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
stephanielynn
Date: March 30, 2024
Had a spark plug blow out driving down the road. This got was the simplest way to take care of the threads vs buying a new head. Used a lot of grease and cleaned the tap out after so many turns just to make sure nothing was dropping into the cylinder. After 24hrs of the red loctite drying, it was good to go.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Greg
Date: November 13, 2023
Worked perfectly on Subaru forester so far so good saved a lot of money not replacing engine
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Mitch
Date: October 10, 2023
Instructions are very basic I would recommend a youtube video but if u follow along it worked perfectly no problems at all
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
Deborah Keihn
Date: August 16, 2023
Great quality. My Ford 4x4 pickup blew a plug out. This was a great product that fixed the problem. Truck runs great! I would buy again.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
99Navi
Date: June 24, 2023
Works well just take your time be patient. Make sure you tighten set screw on tap real tight.
Rating: 
[4 of 5 Stars!]
[4 of 5 Stars!]
By
jeff johnson
Date: April 18, 2023
This thread insert kit had just what I needed to repair the spark plug thread on a 2013 Ford Focus when no local auto part stores sold a long enough insert. I wish I would've ordered this kit from the get-go.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
shawn robinson
Date: November 04, 2022
Good value for the money, saves a few dollars on a bigger repair. Well made tolling and inserts.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
Ashton
Date: June 24, 2022
You'll probably need some mechanical know-how and experience tapping threads prior to using this, but it worked great for me, no issues. Only thing I would want is a hex key to tighten the threader set screw and maybe some red Loctite.
Rating: [4 of 5 Stars!]
[4 of 5 Stars!]
By
DurbinFam
Date: May 16, 2022
This worked perfect on my wife's Mini Cooper to repair a stripped out spark plug (evidently pretty common on Mini Coopers). Lots of YouTube videos on how to do this, all of them are better than the instructions. I never referred to the instructions, I just used what I learned watching videos. Tool worked perfect, very impressed with the design. It's rare to find something like this that works as described and intended. Well worth the money.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By
A Customer
Date: April 23, 2022
Works as expected
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
Items 1 - 14 of 14 reviews
1