---
product_id: 548464616
title: "12V Auto Waterproof Fuse Relay Box Block Kit w/ 12AWG + 16AWG Pre-Wired Harness [6 Bosch Style Relays & 10 Fuses Included] Universal Relay Panel for DC Automotive Vehicles Cars Marine Boat Jeep"
brand: "online led store"
price: "¥25089"
currency: JPY
in_stock: true
reviews_count: 7
category: "Online Led"
url: https://www.desertcart.jp/products/548464616-12v-auto-waterproof-fuse-relay-box-block-kit-w-12awg
store_origin: JP
region: Japan
---

# IP65 waterproof rating for ultimate protection 6 Bosch-style relays for robust circuit control Pre-wired 12AWG + 16AWG harness for easy install 12V Auto Waterproof Fuse Relay Box Block Kit w/ 12AWG + 16AWG Pre-Wired Harness [6 Bosch Style Relays & 10 Fuses Included] Universal Relay Panel for DC Automotive Vehicles Cars Marine Boat Jeep

**Brand:** online led store
**Price:** ¥25089
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Up Your Ride with Confidence—Stay Wired, Stay Winning!

## Quick Answers

- **What is this?** 12V Auto Waterproof Fuse Relay Box Block Kit w/ 12AWG + 16AWG Pre-Wired Harness [6 Bosch Style Relays & 10 Fuses Included] Universal Relay Panel for DC Automotive Vehicles Cars Marine Boat Jeep by online led store
- **How much does it cost?** ¥25089 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/548464616-12v-auto-waterproof-fuse-relay-box-block-kit-w-12awg)

## Best For

- online led store enthusiasts

## Why This Product

- Trusted online led store brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Waterproof Warrior:** Durable nylon 66 housing with IP65 rating keeps your electrical system safe from water, dust, and grime.
- • **All-in-One Power Kit:** Includes 6 Bosch-style relays, 10 assorted fuses, terminals, and silicone seals—everything you need in one sleek package.
- • **Master Your Circuits:** Six relay sockets and fuse holders to organize and protect multiple independent circuits effortlessly.
- • **Plug & Play Precision:** Color-coded, labeled pre-wired harness with heavy-duty 12AWG power wires for a fast, foolproof installation.
- • **Built for Every Terrain:** Unique 'Z' shaped brackets ensure secure mounting anywhere—from rugged off-road trails to marine decks.

## Overview

This 12V waterproof fuse relay box kit from TRUE MODS is engineered for professional-grade automotive and marine applications. Featuring six Bosch-style relays, ten assorted fuses, and a pre-wired 12AWG + 16AWG harness, it consolidates and protects up to six independent circuits. Its rugged nylon 66 construction and IP65 waterproof rating ensure durability and reliability in harsh environments, while unique mounting brackets offer versatile installation options. Ideal for millennial professionals who demand organized, high-performance electrical systems on the go.

## Description

One and DoneYou designed the system, now let us supply the parts. Our kits come with everything you need for a quick and easy install: a rugged waterproof relay box, a 6-pack of 5-pin relays, and 10 fuses (10A x 4, 20A x 4, 25A x 2, 30A x 2). Because "œgetting there is half the fun" doesn't apply to electrical work.Making Your Adventures PossibleYou're 100 miles into a multi-day off-road expedition, the sun is going down, and the last thing you want to worry about is whether or not your lights will turn on when you flip the switch; if you've trusted your fuses and relays to a waterproof relay box from us, you know you have nothing to worry about. Made from durable, heat-resistant nylon 66 and packed with enough silicone gaskets and seals to give it an IP65 waterproof rating, this relay box is prepared for any contingency.Get Lost, Just Not in Your WiringTrying to organize harnesses, fuses, and relays can quickly have you driving in circles. Get your bearings with a dedicated, waterproof relay box. Like a trail map for your wiring, our relay box is the most efficient way to consolidate, organize, and keep track of all your aftermarket accessories. Boasting a six relay/fuse capacity, this relay box is more than capable of powering and protecting up to six independent circuits.

Review: Working perfectly - Really good fuse box. Install with care
Review: Really - Bad quality

## Features

- REMAP YOUR WIRING - organize, consolidate, and keep track of multiple independent circuits with six relay sockets and six fuse holders.
- MULTI-TRERRAIN - Our unique "Z" shaped brackets make it possible to securely mount this waterproof relay box just about anywhere.
- BUILT LIKE A TANK - Made from durable and dependable nylon 66 and sporting an IP65 waterproof rating, our relay box dosent understand the word "can't."
- COMBINE TO CONQUER - The road ahead just got a bit easier. This relay box kit combines everything you need into one convenient package: a top-notch relay box, 6 Bosch style relays, 10 fuses, terminals, and silicone seals.
- NEXT LEVEL UPGRADE "“ While neatly color-coded with labels on wires to ensure easy installation, our pre-wired harness features 6x independent inputs with robust 12 AWG power wires to unleash the full potential of the included relays.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CDZCKBWM |
| Best Sellers Rank | #38,191 in Automotive ( See Top 100 in Automotive ) #27 in Car Fuse Boxes |
| Manufacturer | TRUE MODS |
| Manufacturer reference | EPSPWR0314 |
| Product Dimensions | 20.02 x 18.11 x 10.8 cm; 1.17 kg |

## Product Details

- **Connector type:** Quick Connect
- **Contact material:** Silver
- **Contact type:** Normally Open
- **Current rating:** 10 Amps
- **Mounting type:** Mounting with Z brackets

## Images

![12V Auto Waterproof Fuse Relay Box Block Kit w/ 12AWG + 16AWG Pre-Wired Harness [6 Bosch Style Relays & 10 Fuses Included] Universal Relay Panel for DC Automotive Vehicles Cars Marine Boat Jeep - Image 1](https://m.media-amazon.com/images/I/81Ag2FjZunL.jpg)

## Questions & Answers

**Q: How do the unused relay/fuse sockets stay waterproof?  I only need 3 relays right now but want room for more.**
A: All the seals for the bottom come without any holes, so there is no need to wire the terminals with short pigtails like another answer suggested. You need to actually poke a hole in them to wire it. The holes are already most of the way through, with just a little skin left at the bottom so it's sealed untill you need it. I just pushed a little dowl through the holes I wanted open for wire.

**Q: Can i use the fuses in the panel for the same circuit as the relays?**
A: Yes. I used the fuses for the load side of the relays.

**Q: Does the kit with harness come pre wired?**
A: Mine did not, but it came with all the clips and everything To go on the wires and then click into it. I used it for my UTV.. It is very nice. The one in the picture that you asking me about. Looks like it is pre-wired and numbered for each Relay.

**Q: Can I use one of these as a horn relay, grounding one coil through the steering column with three others supplied current from switches as usual?**
A: A relay is nothing more than a switch with a normally open and a normally closed contact. Yes you can use a relay to energize your horn. The button in the steering column switches ground when you push it. Connect the ground potential coming from the closed horn switch to the relay on terminal 86, connect a constant 30 amp potential12V source to both 85 & 30 and connect 87 to the positive side of the horn. The horn must be grounded to function. When you push the horn button the circuit to the relay coil will close, switching it to energize the horn.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Working perfectly
*by A***C on 29 November 2025*

Really good fuse box. Install with care

### ⭐⭐ Really
*by J***D on 3 July 2022*

Bad quality

### ⭐⭐⭐⭐⭐ Review
*by J***N on 4 January 2020*

Just installed it into a piece of equipment we built. Looks great and should hold up to water and prevent corrosion. Will update if I find otherwise.

## Frequently Bought Together

- True Mods 12V Auto Waterproof Fuse 5-Pin Relay Box Block Kit w/ 12AWG + 16AWG Pre-Wired Harness [Bosch Style Relays & Fuses] Universal Relay Panel for DC Automotive Vehicles Cars Marine Boat Jeep UTV
- True Mods Waterproof Ground Power Distribution Terminal Block Battery Bus Bar [Max. 300V AC/48V DC] [IP65] [Positive/Negative] Insulated Busbar Box for 12V Auto Vehicle Marine Car RV Boat UTV ATV
- NAOEVO 18 Gauge Wire 2 Conductor Electrical Wire, 18 AWG Stranded PVC Cord, 12V Low Voltage/Tinned Copper/Flexible Cable for Automotive Wiring, Lamp Cord, Marine Cable (100FT)

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**Shop now:** [https://www.desertcart.jp/products/548464616-12v-auto-waterproof-fuse-relay-box-block-kit-w-12awg](https://www.desertcart.jp/products/548464616-12v-auto-waterproof-fuse-relay-box-block-kit-w-12awg)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-03*