--- product_id: 52751212 title: "Spark Plug Thread Repair Kit 25 Piece (M14 X 1.25) in Metal Case" brand: "neilsen" price: "S/.531" currency: PEN in_stock: true reviews_count: 7 url: https://www.desertcart.pe/products/52751212-spark-plug-thread-repair-kit-25-piece-m14-x-1 store_origin: PE region: Peru --- # 25-piece kit Metal case included M14 x 1.25 size Spark Plug Thread Repair Kit 25 Piece (M14 X 1.25) in Metal Case **Brand:** neilsen **Price:** S/.531 **Availability:** βœ… In Stock ## Summary > πŸ”© Repair Like a Pro: Don’t Let a Spark Plug Ruin Your Day! ## Quick Answers - **What is this?** Spark Plug Thread Repair Kit 25 Piece (M14 X 1.25) in Metal Case by neilsen - **How much does it cost?** S/.531 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/52751212-spark-plug-thread-repair-kit-25-piece-m14-x-1) ## Best For - neilsen enthusiasts ## Why This Product - Trusted neilsen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Durable Storage:** Comes in a sturdy metal case for easy organization and transport. - β€’ **All-in-One Solution:** Includes taper and plug taps with integrated ream for comprehensive repairs. - β€’ **User-Friendly Design:** Extension tools provide effortless access to hard-to-reach areas. - β€’ **Precision Engineering:** Stepped tap ensures perfect alignment for flawless repairs. - β€’ **Versatile Compatibility:** Ideal for deep-seated spark plug configurations. ## Overview The Spark Plug Thread Repair Kit by Neilsen Tools is a comprehensive 25-piece set designed for M14 x 1.25 spark plug repairs. It features precision-engineered tools, including a stepped tap for perfect alignment, taper and plug taps, and an integrated ream, all housed in a durable metal case for easy access and organization. ## Description Especially suitable for the repair of deep-seated plug configurations. Incorporates taper and plug taps together with integrated ream. Stepped tap ensures correct alignment of cutter in existing spark plug hole. Extension tools allow easy access to the bottom of the plug recess. CONTENTS TAP - M14 X 1.25 STEP-TAP - M14 X1.25 : M15.8 X 1.25 WRENCH - ID - 3/8" T BAR - 3/8" INSERT DRIVE - ID - 3/8" SEAT CUTTER INSERTS - L15MM & L9.4MM ALLEN KEY - 2.5MM (FOR NO.3 WRENCH) METAL CASE ## Features - Extension tools allow easy access to the bottom of the plug recess. - Stepped tap ensures correct alignment of cutter in existing spark plug hole. - Incorporates taper and plug taps together with integrated ream. - Especially suitable for the repair of deep-seated plug configurations. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | NEILSEN TOOLS | | Brand | Neilsen | | Manufacturer reference | NEILSEN TOOLS | | Manufacturer part number | NEILSEN TOOLS | ## Images ![Spark Plug Thread Repair Kit 25 Piece (M14 X 1.25) in Metal Case - Image 1](https://m.media-amazon.com/images/I/51KXxU9g8oL.jpg) ![Spark Plug Thread Repair Kit 25 Piece (M14 X 1.25) in Metal Case - Image 2](https://m.media-amazon.com/images/I/81rD7FxPReL.jpg) ![Spark Plug Thread Repair Kit 25 Piece (M14 X 1.25) in Metal Case - Image 3](https://m.media-amazon.com/images/I/91FEauMtfzL.jpg) ![Spark Plug Thread Repair Kit 25 Piece (M14 X 1.25) in Metal Case - Image 4](https://m.media-amazon.com/images/I/615wb9NRKvL.jpg) ![Spark Plug Thread Repair Kit 25 Piece (M14 X 1.25) in Metal Case - Image 5](https://m.media-amazon.com/images/I/61NrDHwmlhL.jpg) ## Questions & Answers **Q: The most common spark plug length is 3/4" (19mm). How many inserts of this length are included?** A: I think there around 8 inserts of this length in the kit. **Q: What kind of glue is recommended for the insert** A: Didn't use any adhesive the plug keeps it inplace ## Customer Reviews ### ⭐⭐ 2.0 out of 5 stars Very flawed, but did do the job. *by N***Y on Reviewed in the United Kingdom on 2 August 2022* As others have said. The inserts are a bit too big to go cleanly into the threads the tap cuts. You can with force it in on an aluminium head, but on a cast one not a chance. The insert is holding so although it's a very tight fit, if you do get it in, I don't think the insert is going anywhere.It's hard to know whether to recommend it or not, given its questionable quality but a time-sert kit is 4 times the price of this, so for the price I'd give it a hesitant recommendation as long as you know what you're getting yourself in for. ### ⭐ 1.0 out of 5 stars Good... but flawed. *by A***R on Reviewed in the United Kingdom on 16 May 2015* A good piece of kit I thought initially. Re-tapping the hole was child's play and took 10 mins.Unfortunately, the whole process is let down by the poor quality of the inserts as they are (in my batch anyway) manufactured oversize and would not go into the re-tapped hole. I'm a toolmaker by trade and have a lathe in my garage which I used to chase the thread to reduce its size.Without the use of my lathe I would have had to try and source some other higher quality inserts. Not the easiest of tasks on a Friday evening.Nielsen need to batch inspect components to ensure they are actually fit for purpose, otherwise it lets down what is essentially a good product. ### ⭐ 1.0 out of 5 stars Avoid this product. *by A***R on Reviewed in the United Kingdom on 3 June 2020* This looks a good kit, and all went well until it came to screwing in the insert. They are too big to go in. You can just about screw one into a soft aluminium cylinder head, but there is no way will they screw into a cylinder head made of cast iron. A replacement kit that was sent was no better. A review of this product from 5 years ago highlighted the same problem, so it would appear that there is no quality control. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pe/products/52751212-spark-plug-thread-repair-kit-25-piece-m14-x-1](https://www.desertcart.pe/products/52751212-spark-plug-thread-repair-kit-25-piece-m14-x-1) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-08-26*