---
product_id: 18915749
title: "Time-Sert® M14x1.25 Spark Plug Thread Repair kit p/n 4412E-111"
brand: "time-sert"
price: "$703.84"
currency: USD
in_stock: true
reviews_count: 5
category: "Time Sert"
url: https://www.desertcart.us/products/18915749-time-sert-m14x1-25-spark-plug-thread-repair-kit-p
store_origin: US
region: United States of America
---

# Extended tooling for 6"+ deep spark plug holes M14x1.25 thread size precision 5 high-grade carbon steel inserts Time-Sert® M14x1.25 Spark Plug Thread Repair kit p/n 4412E-111

**Brand:** time-sert
**Price:** $703.84
**Availability:** ✅ In Stock

## Summary

> ⚡ Fix it right the first time—because your engine deserves the best!

## Quick Answers

- **What is this?** Time-Sert® M14x1.25 Spark Plug Thread Repair kit p/n 4412E-111 by time-sert
- **How much does it cost?** $703.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/18915749-time-sert-m14x1-25-spark-plug-thread-repair-kit-p)

## Best For

- time-sert enthusiasts

## Why This Product

- Trusted time-sert brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pro-Grade Durability:** Carbon steel inserts and robust tooling ensure long-lasting, reliable thread restoration.
- • **Deep Reach Capability:** Specialized extended tooling tackles spark plug wells 6 inches or deeper with ease.
- • **Precision Thread Repair:** Engineered for exact M14x1.25 spark plug threads—no guesswork, just flawless fit.
- • **Universal Compatibility:** Trusted by top brands like Toyota, BMW, Audi, and more—your go-to for premium repairs.
- • **First-Time Fix Guarantee:** Designed exclusively for first-time repairs—save time and avoid costly repeat jobs.

## Overview

The Time-Sert M14x1.25 Spark Plug Thread Repair Kit (p/n 4412E-111) is a professional-grade solution designed for deep reach spark plug holes (6"+). Featuring 5 carbon steel inserts and extended tooling, it delivers precise, reliable thread repairs compatible with a wide range of vehicles including Toyota, BMW, Audi, and more. Ideal for first-time repairs, this kit offers a durable, time-saving alternative to costly engine head replacements.

## Description

commonly used in Toyota, Lexus, Honda, Acura, Bmw, Mercedes-benz, VW, Audi, Kia, Mini cooper and others that use 3/4 reach washer seat spark plugs. M14x1.25 spark plug repair kit. Extra insets Search item B00I9D3T8U for 3/4 reach washer seat. M14x1.25 spark plug repair tooling Extended: For applications that require deeper reach into the head. The 4412E tooling works very well in holes 6" deep or more. The installation is exactly the same for taper seat or washer seat you only need the appropriate length/style of insert. FIRST TIME REPAIRS ONLY. NOTE: Some early domestic vehicles use this also.

Review: Expensive but 100% worth it. - Repaired a 2012 Honda fit with the head on that blew the #2 cylinder spark plug and threads clean out. Did it blind on the back of the engine working by a cell phone and a bore scope. Tool set is very high quality, and it works awesome. I was able to repair the threads in about 45 minutes, most dealers charge 3.5 hours to do the same job. My only caution is take your time, and check your work often. The seat cutter did fit all the way down inside the spark plug tube, but all I had to do was back the tap out with a 3/8 square drive 8 point socket after I cut the seats and the cutter came right out with it (the tubes are pretty deep). Absolutely recommend this tool to anyone, its the right tool for the job. Also comes with a decent plastic case to keep all the tools in.
Review: Don't mess with the cheaper sets, TimeSert WORKS first time - Blew a plug out of my Toyota Sequoia 4.7V8. Total repair time about an hour. The TineSert set is expensive compared to the cheap knurled top inserts but they work and don't come out. I've had the knurled- top inserts come out. It's still cheaper than pulling the head! Only issue is that on the deep plug wells of this motor, the seat cutter is almost impossible to remove from the stem of the tap. You can't reach far enough down to get it even with a magnet tool. The supplied driver tool can't unscrew the tap because the seat cutter is on it. I used a 3/8 drive 6"extension backwards. The female on the extension fit over the male square of the tap and I was able to unscrew the entire thing and remove it. Make sure your piston is all the way down before you start so you don't hit it. Use lots of grease on the tap to lubricate and to catch the metal chips, take the tap out a couple times during the threading process to clean the chips and put on new grease. I used red loctite on the insert even though it didn't say specifically to do so. Make sure you oil the insert installer. The insert only screws on the installer a couple turns, that's normal. Once the insert bottoms out on the head the tool will thread through the insert and expand it to lock into the head. After it starts turning easier stop and remove the tool so you don't drop it into the cylinder.

## Features

- M14x1.25 spark plug thread repair kit with 5 inserts. FIRST TIME REPAIRS ONLY
- This is extended tooling for deep reach spark plug holes
- Used in 3/4 reach washer seat sparkplug applications
- used in Toyota, Lexus, Honda, Acura, Bmw, Volvo, Mercedes-benz, VW, Audi, Kia, Mini cooper,others.
- Fast and reliable repair by Time-Sert M14x1.25 spark plug repair kit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00YPUN39G |
| Automotive Fit Type | Universal Fit |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #736,165 in Automotive ( See Top 100 in Automotive ) #723 in Spark Plug & Ignition Tools |
| Brand | TIME-SERT |
| Core Material | Carbon Steel |
| Customer Reviews | 4.4 4.4 out of 5 stars (128) |
| Date First Available | January 25, 2014 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 16 ounces |
| Item model number | WI4412E-111 |
| Manufacturer | Time-Sert |
| Part Number | WI4412E-111 |
| Product Dimensions | 6.5 x 4 x 1.5 inches |
| Thread Size | M14x1.25 |
| UPC | 845617006881 |
| Vehicle Service Type | Various |

## Product Details

- **Automotive Fit Type:** Universal Fit
- **Brand:** TIME-SERT
- **Core Material:** Carbon Steel
- **Thread Size:** M14x1.25
- **Vehicle Service Type:** Various

## Images

![Time-Sert® M14x1.25 Spark Plug Thread Repair kit p/n 4412E-111 - Image 1](https://m.media-amazon.com/images/I/41tU6d4iHLL.jpg)
![Time-Sert® M14x1.25 Spark Plug Thread Repair kit p/n 4412E-111 - Image 2](https://m.media-amazon.com/images/I/81ADQWhGoIL.jpg)

## Questions & Answers

**Q: Is this the right time-sert kit for a 2005 mini cooper s?  r53  engine designation..  thank you for the help.**
A: Yes this is the correct kit for your 2005 mini cooper s

**Q: Can i use this kit on a 2000 ford expedition 5.4lt 3 valve triton motor?**
A: No the M16x1.5 3 valve engine uses the 3221 kit. https://www.amazon.com/dp/B00IT0NR08/

**Q: Is this the correct kit for my 2000 4Runner 3.4 V-6?**
A: Yes it is correct for the 2000 4runner.

**Q: Would this work for a 1997 Mazda Miata 1.8lt**
A: Yes if the hole was not previously repaired the 4412E-111 will work.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Expensive but 100% worth it.
*by T***R on September 16, 2020*

Repaired a 2012 Honda fit with the head on that blew the #2 cylinder spark plug and threads clean out. Did it blind on the back of the engine working by a cell phone and a bore scope. Tool set is very high quality, and it works awesome. I was able to repair the threads in about 45 minutes, most dealers charge 3.5 hours to do the same job. My only caution is take your time, and check your work often. The seat cutter did fit all the way down inside the spark plug tube, but all I had to do was back the tap out with a 3/8 square drive 8 point socket after I cut the seats and the cutter came right out with it (the tubes are pretty deep). Absolutely recommend this tool to anyone, its the right tool for the job. Also comes with a decent plastic case to keep all the tools in.

### ⭐⭐⭐⭐⭐ Don't mess with the cheaper sets, TimeSert WORKS first time
*by R***H on February 7, 2021*

Blew a plug out of my Toyota Sequoia 4.7V8. Total repair time about an hour. The TineSert set is expensive compared to the cheap knurled top inserts but they work and don't come out. I've had the knurled- top inserts come out. It's still cheaper than pulling the head! Only issue is that on the deep plug wells of this motor, the seat cutter is almost impossible to remove from the stem of the tap. You can't reach far enough down to get it even with a magnet tool. The supplied driver tool can't unscrew the tap because the seat cutter is on it. I used a 3/8 drive 6"extension backwards. The female on the extension fit over the male square of the tap and I was able to unscrew the entire thing and remove it. Make sure your piston is all the way down before you start so you don't hit it. Use lots of grease on the tap to lubricate and to catch the metal chips, take the tap out a couple times during the threading process to clean the chips and put on new grease. I used red loctite on the insert even though it didn't say specifically to do so. Make sure you oil the insert installer. The insert only screws on the installer a couple turns, that's normal. Once the insert bottoms out on the head the tool will thread through the insert and expand it to lock into the head. After it starts turning easier stop and remove the tool so you don't drop it into the cylinder.

### ⭐⭐⭐⭐⭐ Fantastic kit, brilliant engineering.
*by B***. on June 22, 2024*

This is my second time using TimeSert (did my caliper bolts a few years back and have had zero issues) and it's been no different than my initial experience. While the price may seem high, it's worth every single penny. I used this on my 05 Acura TL and it was the perfect tool for the job. If you're not taking the head off, I would HIGHLY suggest getting some grease. WD-40 will work, but it fails to catch all the metal from cutting. Before you start cutting, make sure your engine is on the compression stroke for the cylinder you're rethreading. You want the valves to be closed for when you blow any potential shavings out. Liberally fill the gaps on the step tap with grease and put a decent blob on the tip as well. Cut 4-5 quarter turns and back it out. Clean the tool, re-grease, and do 4-5 more quarter turns. Repeat these steps until there's no more cutting resistance. Doing it this way will ensure barely any metal gets into the cylinder. If you need a video demonstration, look up realfixesrealfast on YouTube, he's got a great three part series. Given the clearance in some engine bays, you may have better luck using a ratchet with a 13mm socket to turn the bits. After cutting is complete, use a rag to remove any excess grease from the hole. Use compressed air with a very small hose to get down into the cylinder and blow out any loose shavings. Use a hose that is about half the size of the hole so any potential debris will have room to get out. Be very thorough with this step. If you used enough grease and didn't get too greedy with the turns, there should be very little metal in the cylinder. Go slow, be patient, and this will fix your problem 100%. Best of luck!

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-20*