5334-14 Thread Repair Kit M14 x 1.25, Spark Plug Hole Thread Repair Kit Includes 14mm Reamer Tap, Insertion Tool & (3) Inserts, Spark Plug Saver
$26.99
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$26.99
Price when purchased online
Free shipping
Free 30-day returns
Sold and shipped by jobs.innov.ma
Free 30-day returns Details
Product details
| Management number | 220474509 | Release Date | 2026/05/03 | List Price | $10.80 | Model Number | 220474509 | ||
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| Category | |||||||||
- 【Universal Compatibility】 This thread repair kit is engineered for easy and permanent repair of stripped or damaged M14 × 1.25 spark plug threads in both aluminum and cast-iron cylinder heads. The 5334-14 kit is compatible with both taper-seat and gasket-style plugs, restoring threads to their original size and strength. It is perfectly suited for cars, trucks, lawn mowers, chainsaws, pressure washers, motorcycles, and other gasoline engines — ideal for repairing threads in spark plug ports, engine blocks, and various metal components. It serves as a direct replacement for OE Part # 5334-14
- 【Comprehensive Spark Plug Port Repair Kit】 The spark plug repair kit includes: Qty-3 high-strength steel inserts in different lengths — short reach (0.309 in.), standard reach (0.425 in.), and long reach (0.673 in.) — to accommodate most engine types; Qty-1 tapered piloted tap and Qty-1 expanding driver tool, providing a complete and convenient all-in-one solution for spark plug thread restoration. The three insert lengths ensure compatibility with all common spark plug reaches. The inserts feature a metric 14mm diameter with a 1.25mm thread pitch
- 【Perfect Design】 The spark plug thread repair kit features a piloted tapered tap designed for perfect alignment without the need for pre-drilling, making it simple to restore original spark plug threads. The tap’s narrow end matches the spark plug’s thread size and tapers to the larger thread of the insert for a secure, precise fit. Grooves along the tap effectively capture metal chips for a clean installation. The included expanding driver sets the insert's flange, and positive mechanical locking knurled teeth bite firmly into the cylinder head to prevent loosening. Three insert lengths are included to fit all spark plug reaches
- 【Cost-Effective Permanent Spark Plug Thread Repair】 This M14-1.25 thread repair kit enables an easy and permanent fix for stripped or damaged spark plug threads caused by wear, corrosion, or over-torquing. It restores threads to their original size for a precise fit, sealing the cylinder head effectively to prevent leaks. Ideal for DIY enthusiasts, professional mechanics, and small engine repairs, this kit offers a quick, low-cost solution that can save hundreds of dollars compared to cylinder head replacement, delivering long-lasting durability and reliable performance
- 【Superior Material】 The tapered tap is precision CNC-machined from high-grade 42CrMo steel, ensuring exceptional toughness and razor-sharp cutting performance. The expanding tool and three inserts are expertly forged from heat-treated and blackened 40Cr steel, providing maximum hardness and superior corrosion resistance. These high-strength steel inserts with integrated flanges deliver secure, leak-free repairs, precise alignment, and outstanding durability — saving significant time and effort when restoring damaged spark plug threads
- 【Ease of Use】 Repairing spark plug threads is straightforward with this user-friendly kit! Begin by removing the cylinder head. Lubricate the tap and carefully thread it into the damaged hole using a 3/8" ratchet, ensuring straight alignment. Clean the threads thoroughly and apply a high-temperature RTV silicone sealant. Select the correct insert length, then screw it in with the knurled end facing up until flush with the surface. Use the expanding tool and gently tap it to lock the insert permanently. Finally, reinstall the spark plug to the manufacturer's recommended torque specification — completing a durable, leak-free repair without the expense of replacement parts
- 【Important Notes】 Before tapping, always coat the tap with grease to prevent metal shavings from entering the engine. Remember to back out the tap after every turn or two to clear debris from the threads. For optimal results and to ensure no chips enter the combustion chamber, it is strongly recommended to remove the cylinder head before performing the repair
- 【100% Satisfaction Guarantee】 If you're not 100% satisfied with our items, simply return it for a refund within 30 days. All Krenlory products support 12-month warranty. Your trust is our priority. Please reach out to us with any concerns
| Brand Name | Krenlory |
|---|---|
| Unit Count | 1.0 Count |
| Item Weight | 294.84 Ounces |
| Thread Size | 14mm x 1.25 |
| Manufacturer | Krenlory |
| Model Number | KL-5334-14 |
| Automotive Fit Type | Universal Fit |
| Included Components | Qty-1 Expanding driver tool, Qty-1 Tapered piloted reamer tap, Qty-3 Steel inserts in different lengths — short reach (0.309 In.), standard reach (0.425 In.), and long reach(0.673 in.) |
| Manufacturer Part Number | KL-5334-14 |
| OEM Equivalent Part Number | KL-5334-14 |
| Compatible with Vehicle Type | Car, Truck, Motorcycle, Lawn Mower, Chainsaw, Pressure Washer, Other Gasoline Engines |
| Manufacturer Warranty Description | 1 Year |
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Spark Plug Thread Repair Kits
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