---
product_id: 36964846
title: "True MODS 1 Pack Bosch Style 5-Pin 12V Waterproof Relay Kit SPDT 30/40 Amp | Waterproof, Interlocking Harness Socket, 12 AWG, SPDT, 30/40 Amp, 12 Volt Automotive Relays, For Auto Car Truck Fan RV"
brand: "online led store"
price: "HK$155"
currency: HKD
in_stock: true
category: "Online Led Store"
url: https://www.desertcart.hk/products/36964846-true-mods-1-pack-bosch-style-5-pin-12v-waterproof
store_origin: HK
region: Hong Kong
---

# 40A high switching capacity Waterproof design Heavy-duty 12 AWG wiring True MODS 1 Pack Bosch Style 5-Pin 12V Waterproof Relay Kit SPDT 30/40 Amp | Waterproof, Interlocking Harness Socket, 12 AWG, SPDT, 30/40 Amp, 12 Volt Automotive Relays, For Auto Car Truck Fan RV

**Brand:** online led store
**Price:** HK$155
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay switched on with unstoppable power and waterproof reliability!

## Quick Answers

- **What is this?** True MODS 1 Pack Bosch Style 5-Pin 12V Waterproof Relay Kit SPDT 30/40 Amp | Waterproof, Interlocking Harness Socket, 12 AWG, SPDT, 30/40 Amp, 12 Volt Automotive Relays, For Auto Car Truck Fan RV by online led store
- **How much does it cost?** HK$155 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/36964846-true-mods-1-pack-bosch-style-5-pin-12v-waterproof)

## 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

- • **Plug & Play Confidence:** Interlocking harness socket with clear wire color coding for hassle-free installation.
- • **Engineered for Longevity:** Heavy-duty 12 AWG wires and surface mount design built to last under tough conditions.
- • **Power That Packs a Punch:** Handles up to 40 amps for demanding automotive applications.
- • **Built to Brave the Elements:** Waterproof housing ensures reliable performance rain or shine.
- • **Precision Bosch Style 5-Pin:** SPDT relay offers versatile switching with silver-plated copper contacts.

## Overview

The True MODS Bosch Style 5-Pin 12V Waterproof Relay Kit delivers robust 40A switching capacity with durable waterproof construction and heavy-duty 12 AWG wiring. Designed for automotive, truck, RV, and fan applications, this SPDT relay features a reliable interlocking harness socket and silver-plated copper contacts for long-lasting performance in any environment.

## Description

Buy True MODS 1 Pack Bosch Style 5-Pin 12V Waterproof Relay Kit SPDT 30/40 Amp | Waterproof, Interlocking Harness Socket, 12 AWG, SPDT, 30/40 Amp, 12 Volt Automotive Relays, For Auto Car Truck Fan RV: Starter - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- User Manual available for download under Product Information Details
- Waterproof construction & heavy duty 12AWG wires for the main contact.
- Bosch style 5-Pin SPDT (Single Pole Double Throw) Relay.
- 12VDC (14V Max) and 40A/30A High Switching Capability.
- Wire Specifications: Black - Ground (85), Red - VDC (30), White - Trigger (86), Yellow - Output N/C (87a), and Blue - Output N/O (87).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01N66W2XF |
| Best Sellers Rank | #24,382 in Automotive ( See Top 100 in Automotive ) #10 in Automotive Replacement Starter Relays |
| Brand Name | ONLINE LED STORE |
| Coil Voltage | 12 volts |
| Connector Type | Solder |
| Contact Current Rating | 40 A |
| Contact Material | Silver Plated Copper |
| Contact Type | Normally Closed |
| Current Rating | 40 A |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,509) |
| Item Weight | 3.84 ounces |
| Manufacturer | ONLINE LED STORE |
| Maximum Switching Current | 40 A |
| Minimum Switching Voltage | 10 volts_of_direct_current |
| Model | SUVELAM |
| Mounting Type | Surface Mount |
| Operation Mode | Auto,Manual |
| Part Number | PSZACCEPS177R |
| UPC | 816165023866 |
| Wattage | 14.4 watts |

## Product Details

- **Connector Type:** Solder
- **Contact Material:** Silver Plated Copper
- **Contact Type:** Normally Closed
- **Current Rating:** 40 A
- **Mounting Type:** Surface Mount

## Images

![True MODS 1 Pack Bosch Style 5-Pin 12V Waterproof Relay Kit SPDT 30/40 Amp | Waterproof, Interlocking Harness Socket, 12 AWG, SPDT, 30/40 Amp, 12 Volt Automotive Relays, For Auto Car Truck Fan RV - Image 1](https://m.media-amazon.com/images/I/81m2P8Wl3RL.jpg)
![True MODS 1 Pack Bosch Style 5-Pin 12V Waterproof Relay Kit SPDT 30/40 Amp | Waterproof, Interlocking Harness Socket, 12 AWG, SPDT, 30/40 Amp, 12 Volt Automotive Relays, For Auto Car Truck Fan RV - Image 2](https://m.media-amazon.com/images/I/71rtcuyFYHL.jpg)
![True MODS 1 Pack Bosch Style 5-Pin 12V Waterproof Relay Kit SPDT 30/40 Amp | Waterproof, Interlocking Harness Socket, 12 AWG, SPDT, 30/40 Amp, 12 Volt Automotive Relays, For Auto Car Truck Fan RV - Image 3](https://m.media-amazon.com/images/I/71+q+xu0rjL.jpg)
![True MODS 1 Pack Bosch Style 5-Pin 12V Waterproof Relay Kit SPDT 30/40 Amp | Waterproof, Interlocking Harness Socket, 12 AWG, SPDT, 30/40 Amp, 12 Volt Automotive Relays, For Auto Car Truck Fan RV - Image 4](https://m.media-amazon.com/images/I/81ReNQjiP4L.jpg)
![True MODS 1 Pack Bosch Style 5-Pin 12V Waterproof Relay Kit SPDT 30/40 Amp | Waterproof, Interlocking Harness Socket, 12 AWG, SPDT, 30/40 Amp, 12 Volt Automotive Relays, For Auto Car Truck Fan RV - Image 5](https://m.media-amazon.com/images/I/61UN2iwyEiL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How many amps does it take to make the relay switch from open to closed??  I have a 1.5 amp circuit that I want to use as the switch power**
A: The relay only requires about 150 milliamps @ 12 V DC to be triggered.  Hope this helps.

**Q: I am wanting to put in an on/off switch on a 4wheeler to the existing 12v dc auxilary jack.  what wires would to to what posts on the 3 prong switch?**
A: It would be better to run a new fused feed from the battery and use the accessory wire from the key switch so you always shut it off and not forget and run your battery dead.

**Q: Im noticing a constant buzz from my relays. What could be the issue? Bad switch? Bad ground? too much voltage drop?**
A: Are all the relays that are buzzing connected to the same trigger switch?  If so, the trigger switch may be supplying power (or ground) to the relays even when in the "off" position.  This is only one possibility.  The relay itself may be faulty, just the likelihood of multiple units failing at the same time is slim.  Please contact us directly to further troubleshoot the matter.  Thanks.

**Q: I am hooking up a amp to a mototcycle, the instruction says i need to use this. Why?**
A: HOW MANY AMPS DOES YOUR AMPLIFIER DRAW.....  IT MAY NEED ITS OWN CIRCUT BREAKER FED THUR THIS RELAY, BE CAREFULLY YOU DONT BURN THINGS UP, USE THE RIGHT SIZE WIRING AND PROTECT WITH THE RIGHT SIZE FUSE

## Frequently Bought Together

- True MODS 1 Pack 5-Pin 12V Bosch Style Waterproof Relay Kit [Harness Socket] [12 AWG Hot Wires] [SPDT] [30/40 Amp] 12 Volt Automotive Marine Relays for Boats Auto Fan Cars
- 12 AWG Inline Fuse Holder - 12 Gauge Fuse Holder for 30A Blade Fuse (6 Pack)
- 10 Gauge Fuse Holder - 10 AWG Inline Fuse Holder with 40 AMP ATC Blade Fuses (4pack)

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**Shop now:** [https://www.desertcart.hk/products/36964846-true-mods-1-pack-bosch-style-5-pin-12v-waterproof](https://www.desertcart.hk/products/36964846-true-mods-1-pack-bosch-style-5-pin-12v-waterproof)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-08-05*