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⚡ Fix threads like a pro—no mess, no stress!
The Powerbuilt 14mm Back Tap Thread Repair Tool (model 640811) is a professional-grade, collapsible tool designed to restore damaged spark plug threads efficiently. Made from heat-treated 4118 steel and meeting ANSI standards, it saves time by repairing threads through the spark plug hole without removing cylinder heads, preventing debris from entering the engine chamber. Trusted by thousands for its durability and precision, this tool is a must-have for any serious mechanic or DIY enthusiast.
| ASIN | B0014FGVVW |
| Brand Name | Powerbuilt |
| Color | Silver |
| Country of Publication | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,744) |
| Global Trade Identification Number | 00028907263274 |
| Included Components | Back-Tap Thread Repair To |
| Item Dimensions | 12.7 x 1.9 x 25.4 centimeters |
| Item Type Name | Back-Tap Thread Repair To |
| Item Weight | 0.16 Kilograms |
| Manufacturer | Powerbuilt |
| Manufacturer Part Number | 640811 |
| Material Type | 4130 Steel |
| Model Number | 640811 |
| Number of Pieces | 1 |
| UPC | 740528465287 028907263274 |
| Unit Count | 1 Count |
A**D
Very good tool
It help my to rethread spark plug dameged thread on my Toyota prado
J**S
Saved me thousands of dollars and way too many hours. The trickiest part was fixing the threads at the START of the hole as they were the bad ones.. at least this kept crap out of my chambers though, 100% recommend this! It's VERY high quality too, I was impressed. At first I thought the fifty bucks was outrageous, but... nope! This is great for just CLEANING threads as well. So you remove old sparks, put this down the hole, open it up, and thread it out, threads are as good as new!
B**O
Iused i to rethred my MDT mower sucsessfully! Easy and swifth.
R**I
Worked like a charm and saved me a few hundred dollars, I cross threaded the first few threads when I tried to to use a thread restorer Because of the restricted hole location, my mechanic wanted to remove the manifold to re re-tap the hole properly. To make sure the tap started straight, I inserted a wooden dowel in the hole and noted the dowel's orientation and then I started the tap as close to this position as possible. So as not to start the tap cross threaded, I inserted the tap so that it's top thread was a few threads below the top and slowly expanded it while gently rocking. It was obvious when the tap engaged properly. I expanded the tap and turned it back and forth. I repeated this, expanding the tap a little at at a time on each try until I needed pliers to expand any further. Then I ran the tap out. After that the oxygen sensor was easy to install.
T**J
Restored the thread of a spark plug hole in my Renault cylinder head which had been lightly threaded a few turns. As other reviewers have said, take your time to figure out how the tool works before going in. I passed it through three times as instructed and needed pliers to expand it because of tight access.
M**O
Great service, great product thank you Amazon
Trustpilot
2 days ago
3 weeks ago