---
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: "18130CFA"
currency: XOF
in_stock: false
reviews_count: 8
category: "First4 Magnets"
url: https://www.desertcart.sn/products/62812120-n42-neodymium-hornby-train-magnets-for-arts-crafts-model-making
store_origin: SN
region: Senegal
---

# 12.7 x 9.3 x 13.2mm precision size 5.2kg vertical pull strength Triple-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:** 18130CFA
**Availability:** ❌ Out of Stock

## Summary

> 🧲 Elevate Your Model Train Game with Magnetic Precision!

## 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?** 18130CFA with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/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

- • **Power Up Your Model 🚂:** High-performance N42 neodymium magnets deliver superior torque, reviving your Hornby and other model trains with unmatched power.
- • **Magnetism That Never Fades 🔄:** Crafted from the strongest magnetic material, these magnets maintain peak performance without losing strength over time.
- • **Precision Fit, Zero Hassle 📐:** Specifically engineered to replace 0.5 inch magnets in Hornby Dublo, Wrenn, and Tri-ang motors for a seamless upgrade.
- • **Built to Last, Built to Impress 🛡️:** Triple-layer nickel-copper-nickel coating ensures long-lasting corrosion resistance and a sleek, smooth finish.
- • **Easy Installation with Secure Hold 🔩:** 2.5mm hole aligned with magnetic poles allows for secure brass bolt retention, keeping your upgrades firmly in place.

## Overview

These N42 neodymium magnets (12.7 x 9.3 x 13.2mm) are designed to replace standard 0.5 inch magnets in model locomotive motors like Hornby Dublo and Wrenn. Featuring a powerful 5.2kg vertical pull and triple-layer corrosion-resistant coating, they provide enhanced torque and durability. The 2.5mm hole aligns with magnetic poles for secure installation, ensuring your model trains perform with renewed power and reliability.

## 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)

Review: Neo magnetics - Magnets as described and fitted ok
Review: perfect for my Hornby trains - 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.

## 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 | 51,883 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 428 in Rare Earth Magnets |
| Brand | FIRST4MAGNETS |
| Colour | Silver |
| Country Of Origin | China |
| Customer Reviews | 4.3 out of 5 stars 40 Reviews |
| 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 Type Name | 12.7 x 9.3 x 13.2mm N42 Neodymium Magnet c/w 2.5mm hole ( Pack of 4 ) |
| Manufacturer | Magnet Expert |
| Material | Neodymium |
| Material Type | Neodymium |
| Number of Pieces | 4 |
| Number of pieces | 4 |
| Product dimensions | 13L x 9W x 13Th millimetres |
| Shape | Rectangular |
| 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)
![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 2](https://m.media-amazon.com/images/I/71zcHjtL8BL.jpg)
![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 3](https://m.media-amazon.com/images/I/61EsTtfOJ+L.jpg)
![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 4](https://m.media-amazon.com/images/I/61-P+oaSpnL.jpg)
![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 5](https://m.media-amazon.com/images/I/61dsLA63vyL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Neo magnetics
*by C***N on 13 February 2026*

Magnets as described and fitted ok

### ⭐⭐⭐⭐⭐ perfect for my Hornby trains
*by M***E on 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.

### ⭐⭐⭐⭐⭐ Much better than expected for VFM
*by D***N on 13 September 2024*

Good quality neo. Very good plating.

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-06-01*