---
product_id: 57252812
title: "TIME-SERTM14x1.25 Spark Plug Thread Repair kit p/n 4412-321"
brand: "time-sert"
price: "€ 547.59"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/57252812-time-sertm14x1-25-spark-plug-thread-repair-kit-p-n
store_origin: HR
region: Croatia
---

# M14x1.25 Thread Repair Quick Fix Solution 5 Inserts Included TIME-SERTM14x1.25 Spark Plug Thread Repair kit p/n 4412-321

**Brand:** time-sert
**Price:** € 547.59
**Availability:** ✅ In Stock

## Summary

> 🔩 Fix it Fast, Fix it Right!

## Quick Answers

- **What is this?** TIME-SERTM14x1.25 Spark Plug Thread Repair kit p/n 4412-321 by time-sert
- **How much does it cost?** € 547.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/57252812-time-sertm14x1-25-spark-plug-thread-repair-kit-p-n)

## 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

- • **Compact Design:** Lightweight at just 1.2 lbs for easy handling.
- • **Effortless Repairs:** Restore stripped spark plug threads without head removal.
- • **Durable Construction:** Built to last, ensuring long-term reliability in repairs.
- • **Precision Engineering:** Includes 5 high-quality inserts for reliable performance.
- • **Versatile Compatibility:** Compatible with both 3/4 and 3/8 reach washer seat plugs.

## Overview

The TIME-SERT M14x1.25 Spark Plug Thread Repair Kit (p/n 4412-321) is an essential tool for automotive professionals and DIY enthusiasts alike. This kit allows for quick and efficient repairs of stripped spark plug threads without the need to remove the cylinder head. It includes five precision-engineered inserts and is designed for compatibility with various washer seat plugs, making it a versatile addition to any toolkit.

## Description

TIME-SERTM14x1.25 Spark Plug Thread Repair kit p/n 4412-321

## Features

- M14x1.25 Repair stripped out spark plug threads without removing the head
- This is Short Time-Sert tooling with 5 spark plug Inserts 9.4mm & 16.8mm
- Fast and reliable repair by Time-Sert M14x1.25 spark plug repair kit
- replenish item B00I9D3T8U # 44111 for 3/4 reach washer seat plugs
- replenish item B00K244FLO # 44125 for 3/8 reach washer seat plugs

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Time-Sert |
| Brand | TIME-SERT |
| Item Weight | 1.2 pounds |
| Package Dimensions | 6.42 x 4.06 x 1.5 inches |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 4412-321 |

## Images

![TIME-SERTM14x1.25 Spark Plug Thread Repair kit p/n 4412-321 - Image 1](https://m.media-amazon.com/images/I/616Y5tzMMHL.jpg)
![TIME-SERTM14x1.25 Spark Plug Thread Repair kit p/n 4412-321 - Image 2](https://m.media-amazon.com/images/I/61IcsMVeHtL.jpg)

## Questions & Answers

**Q: It will work on 02 f150 5.4l?**
A: No you would want the Time-Sert Ford spark plug kit p/n 5553.  https://time-serts.com/store/5553/

**Q: What time sert kit do i need for 2008 chevrolet avalanche 5.3**
A: The spark plug in the avalanche is a taper seat you should see kit p/n 4412E-187 for deep holes.
or check time-serts.com for the short version of this kit p/n 4412S-187

**Q: is the outside threads larger then m14? and the m14 1.25 is the inside thread?  whats the size of the outseide thread?**
A: Yes the outside diameter is larger and is only designed for first-time repairs. If the spark plug was previously repaired see Big-Sert spark plug repair. Time-Sert.com

**Q: How about a 2009 ford focus se 2.0l spark plug thread 14mm x 1.25?**
A: For a first time repair on the 2.0 Focus use p/n 4412E-187 for taper seat spark plugs.
https://time-serts.com/store/m14x1-25-taper-seat-spark-plug-extended-p-n-4412e-187/
use the insert that matches your spark plug length

---

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**Shop now:** [https://www.desertcart.hr/products/57252812-time-sertm14x1-25-spark-plug-thread-repair-kit-p-n](https://www.desertcart.hr/products/57252812-time-sertm14x1-25-spark-plug-thread-repair-kit-p-n)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-27*