---
product_id: 12864666
title: "Dual Mated Wiring Harness, Part Number 81780-HBC, Brake Controller, 2003-06 Chevy/GMC/Cadillac/Hummer"
brand: "hayes brake"
price: "$69.48"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.ec/products/12864666-dual-mated-wiring-harness-part-number-81780-hbc-brake-controller
store_origin: EC
region: Ecuador
---

# Plug-and-play convenience Chevy/GM compatibility DIY installation in 5-10 mins Dual Mated Wiring Harness, Part Number 81780-HBC, Brake Controller, 2003-06 Chevy/GMC/Cadillac/Hummer

**Brand:** hayes brake
**Price:** $69.48
**Availability:** ✅ In Stock

## Summary

> 🚀 Get hooked up and hit the road in no time!

## Quick Answers

- **What is this?** Dual Mated Wiring Harness, Part Number 81780-HBC, Brake Controller, 2003-06 Chevy/GMC/Cadillac/Hummer by hayes brake
- **How much does it cost?** $69.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/12864666-dual-mated-wiring-harness-part-number-81780-hbc-brake-controller)

## Best For

- hayes brake enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Ensure safe braking with easy-to-see connections that protect your vehicle's braking system.
- • **Smart Design:** Install conveniently under or behind your dash without the need for complex disassembly.
- • **No Hassle Wiring:** Forget about cutting or splicing; simply plug into factory connectors for a seamless fit.
- • **Effortless Installation:** Set up your brake controller in just 5-10 minutes—no tools required!
- • **Universal Compatibility:** Designed for a wide range of Chevy, GMC, Cadillac, and Hummer models from 2003-2006.

## Overview

The Dual Mated Wiring Harness (Part Number 81780-HBC) is engineered for seamless integration with 2003-2006 Chevy, GMC, Cadillac, and Hummer models. This plug-and-play solution allows for quick DIY installation in just 5-10 minutes, ensuring safe and efficient braking without the need for tools or complex wiring. Perfect for towing, this harness is designed for convenience and reliability.

## Description

Dual Mated Wiring Harness, Part Number 81780-HBC, Brake Controller, 2003-06 Chevy/GMC/Cadillac/Hummer

## Features

- DESIGNED FOR CHEVY/GM TRUCKS – Silverado trailer brake controller for 1500 & 2500 2003-06 and Classic 2007. Also good for Cadillac: Escalade 2003-06, incl. EXT & ESV; Chevy: Avalanche 1550/2500 ‘03-06, Suburban ‘03-06, Tahoe ‘03-06; GMC: Sierra ‘03-06, Sierra Classic ’07, Yukon/Yukon XL ‘03-06, Yukon Denali/XL ‘03-06; Hummer: H2 ‘03-07, H2 SUT ‘05-07.
- SAVE MONEY, SET UP IN MINUTES – Don’t spend money at an auto shop or dealer to hook this brake controller up. DIY installation in 5-10 minutes and you’ll be ready to tow a boat, jet skis, or trailer.
- ENSURE SAFE, EASY-TO-SEE BRAKING – Easy installation and UA connect to simply plug in the tow connectors for wiring continuity. You can rest easy knowing that saving you brakes every time you slow down or stop.
- NO TOOLS, CUTTING, OR SPLICING – This dual wiring harness works perfectly by plugging into the factory connectors. No screwdriver, no wire cutter, no splicer – just your hands to plug it in and you’ll be on your way in no time.
- CONVENIENT INSTALL POSITION – No need to go under the hood or take apart your brake light. Simply install this trailer hitch wiring harness under or behind your dash to the left or right of the emergency brake pedal.

## Images

![Dual Mated Wiring Harness, Part Number 81780-HBC, Brake Controller, 2003-06 Chevy/GMC/Cadillac/Hummer - Image 1](https://m.media-amazon.com/images/I/41yyGubn72L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    If you don't have the correct brake controller you'll have to hardwire it
  

*by J***. on Reviewed in the United States 🇺🇸 on May 4, 2021*

I had to cut the end off and hardwire it but I knew that when I bought it

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    This is it.
  

*by D***Y on Reviewed in the United States 🇺🇸 on March 28, 2021*

Plug and play, baby!!!Can't beat that.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    easy to use
  

*by M***6 on Reviewed in the United States 🇺🇸 on May 21, 2021*

installing trailer brake controller

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**Shop now:** [https://www.desertcart.ec/products/12864666-dual-mated-wiring-harness-part-number-81780-hbc-brake-controller](https://www.desertcart.ec/products/12864666-dual-mated-wiring-harness-part-number-81780-hbc-brake-controller)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-06*