--- product_id: 62812120 title: "N42 Neodymium Hornby Train Magnets for Arts, Crafts, Model Making, DIY, Hobbies, Office and Home - 12.7mm x 9.3mm x 13.2mm w/ 2.5mm hole - Pack of 4" brand: "first4magnets" price: "€ 38.34" currency: EUR in_stock: true reviews_count: 9 url: https://www.desertcart.sk/products/62812120-n42-neodymium-hornby-train-magnets-for-arts-crafts-model-making store_origin: SK region: Slovakia --- # 12.7x9.3x13.2mm precision size 5200g pull force 3-layer corrosion-resistant coating N42 Neodymium Hornby Train Magnets for Arts, Crafts, Model Making, DIY, Hobbies, Office and Home - 12.7mm x 9.3mm x 13.2mm w/ 2.5mm hole - Pack of 4 **Brand:** first4magnets **Price:** € 38.34 **Availability:** βœ… In Stock ## Summary > 🧲 Elevate your model train game with magnetic power that lasts and performs! ## Quick Answers - **What is this?** N42 Neodymium Hornby Train Magnets for Arts, Crafts, Model Making, DIY, Hobbies, Office and Home - 12.7mm x 9.3mm x 13.2mm w/ 2.5mm hole - Pack of 4 by first4magnets - **How much does it cost?** € 38.34 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/62812120-n42-neodymium-hornby-train-magnets-for-arts-crafts-model-making) ## Best For - first4magnets enthusiasts ## Why This Product - Trusted first4magnets brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Last πŸ›‘οΈ:** Triple-layer nickel-copper-nickel coating ensures corrosion resistance and a sleek, durable finish for long-term reliability. - β€’ **Power Up Your Model πŸš‚:** High-performance N42 neodymium magnets deliver 5.2kg pull force for stronger, smoother locomotive torque. - β€’ **Perfect Fit Precision πŸ“:** Specifically engineered to replace 0.5 inch magnets in Hornby Dublo, Wrenn, and Tri-ang motors with exact 12.7x9.3x13.2mm dimensions. - β€’ **Effortless Installation πŸ”©:** 2.5mm hole aligned with magnetic poles allows secure mounting with brass bolts, making upgrades hassle-free. - β€’ **Revive & Upgrade Your Hobby 🎨:** Transform your model trains with magnets that never lose strength, boosting performance and reducing current draw. ## Overview These N42 neodymium magnets are precision-crafted replacements for 0.5 inch magnets in popular model locomotive motors like Hornby Dublo and Wrenn. Measuring 12.7 x 9.3 x 13.2mm with a 2.5mm mounting hole, they deliver a strong 5.2kg pull force and feature a triple-layer nickel-copper-nickel coating for corrosion resistance. Designed to boost torque and efficiency, they bring your model trains back to life with lasting magnetic strength. ## Description Product Description High performance neodymium magnets, specifically designed to replace the 0.5 inch magnets in model locomotive motors including Hornby Dublo, Wrenn Locomotives and Tri-ang X03/X04 motors. These magnets have been specifically designed to replace the magnets in the motors of model locomotives. As these magnets are made from the strongest magnetic material, they will provide much more torque than the alnico magnets historically used. What’s more, they will never lose their magnetism. Bring your locomotive back to life simply by replacing your old magnet with these high-performance neodymium magnets. Box Contains 4 x 12.7 x 9.3 x 13.2mm magnet(s) ## Features - HORNBY TRAIN. High performance neodymium magnets, specifically designed to replace the 0.5 inch magnets in model locomotive motors including Hornby Dublo, Wrenn Locomotives and Tri-ang X03/X04 motors. - MAGNET. Each magnet's north and south pole are on the faces with the holes, so the hole runs parallel to the direction of magnetism. - THREE LAYERS. Coated with three layers of nickel, copper and nickel to reduce corrosion and provide a smooth finish. - SPECIFICATION. 12.7mm x 9.3mm x 13.2mm with 2.5mm hole. 5.2kg vertical pull. ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00TACM88Q | | Best Sellers Rank | 63,139 in Business, Industry & Science (See Top 100 in Business, Industry & Science) 444 in Rare Earth Magnets | | Brand | FIRST4MAGNETS | | Colour | Silver | | Country Of Origin | China | | Customer Reviews | 4.6 4.6 out of 5 stars (41) 4.6 out of 5 stars | | Global Trade Identification Number | 05055641235873 | | Included Components | Hornby Train Magnets | | Item Dimensions L X W X Thickness | 13L x 9W x 13Th millimetres | | Item Shape | Rectangular | | Item Thickness | 13.2 Millimetres | | Item Type Name | 12.7 x 9.3 x 13.2mm N42 Neodymium Magnet c/w 2.5mm hole ( Pack of 4 ) | | Manufacturer | Magnet Expert | | Manufacturer Part Number | F12913-4 | | Material Type | Neodymium | | Model Number | F12913-4 | | Number Of Items | 4 | | Number Of Pieces | 4 | | Pull Force | 5200 Grams | | Unit Count | 4.0 count | ## Product Details - **Material:** Neodymium - **Brand:** FIRST4MAGNETS - **Product dimensions:** 13L x 9W x 13Th millimetres - **Colour:** Silver - **Shape:** Rectangular ## Images ![N42 Neodymium Hornby Train Magnets for Arts, Crafts, Model Making, DIY, Hobbies, Office and Home - 12.7mm x 9.3mm x 13.2mm w/ 2.5mm hole - Pack of 4 - Image 1](https://m.media-amazon.com/images/I/61wR4jfd7WL.jpg) ## Available Options This product comes in different **Size Name** options. ## Questions & Answers **Q: I have a project that includes a 20cm dia plastic disk that requires magnets to repel and spin the disk, would these be powerful enough to do so?** A: Thank you for your question. You will find that all like pole magnets will repel each other if these are suitable for your requirements will depend on the weight and the distance you need to repel the other magnet. ## Customer Reviews ### ⭐⭐⭐⭐⭐ perfect for my Hornby trains *by on Reviewed in the United Kingdom 13 October 2024* Used these for my Hornby trains. Reduced current and loco performs with much increased power.Fit perfectly and replaces old magnets. Hole is there for brass bolt to retain magnets. ### ⭐⭐⭐⭐⭐ I am very pleased with this for my Hornby trains *by on Reviewed in the United Kingdom 3 August 2026* That is a spot on I'm definitely get some more from you again and thank you so much for that I would give that 10 out of ten I don't know who made that that is a very a very good ### ⭐⭐⭐⭐⭐ Neo magnetics *by on Reviewed in the United Kingdom 13 February 2026* Magnets as described and fitted ok --- ## 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.sk/products/62812120-n42-neodymium-hornby-train-magnets-for-arts-crafts-model-making](https://www.desertcart.sk/products/62812120-n42-neodymium-hornby-train-magnets-for-arts-crafts-model-making) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-10-07*