---
product_id: 182462372
title: "MGI SpeedWare Fused Relay 40A 12vDC 4-Pin SPST with Harness Socket and 30A LED Fuse (2-Pack)"
brand: "mgi speedware"
price: "¥5720"
currency: JPY
in_stock: true
category: "BISS"
url: https://www.desertcart.jp/products/182462372-mgi-speedware-fused-relay-40a-12vdc-4-pin-spst-harness
store_origin: JP
region: Japan
---

# MGI SpeedWare Fused Relay 40A 12vDC 4-Pin SPST with Harness Socket and 30A LED Fuse (2-Pack)

**Brand:** mgi speedware
**Price:** ¥5720
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** MGI SpeedWare Fused Relay 40A 12vDC 4-Pin SPST with Harness Socket and 30A LED Fuse (2-Pack) by mgi speedware
- **How much does it cost?** ¥5720 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/182462372-mgi-speedware-fused-relay-40a-12vdc-4-pin-spst-harness)

## Best For

- mgi speedware enthusiasts

## Why This Product

- Trusted mgi speedware brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

MGI SpeedWare Fused Relay 40A 12vDC 4-Pin SPST with Harness Socket and 30A LED Fuse (2-Pack)

## Features

- 40A SPST 4-pin relay for high-power ON/OFF switching
- Built-in 30A LED blade fuse that glows when blown
- Includes interlocking harness sockets with mounting tab and high-temperature GXL leads
- General purpose 12vDC automotive relay is great in cars, trucks, boats and more
- Comes with 2 x 40A relays, 2 x 30A fuses, and 2 x pre-wired sockets
- ›See more product details

## Images

![MGI SpeedWare Fused Relay 40A 12vDC 4-Pin SPST with Harness Socket and 30A LED Fuse (2-Pack) - Image 1](https://m.media-amazon.com/images/I/61SSyeGUeFL.jpg)

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**Shop now:** [https://www.desertcart.jp/products/182462372-mgi-speedware-fused-relay-40a-12vdc-4-pin-spst-harness](https://www.desertcart.jp/products/182462372-mgi-speedware-fused-relay-40a-12vdc-4-pin-spst-harness)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-15*