---
product_id: 36809310
title: "9004 High Low Beam SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon 12v PlugNPlay"
brand: "autotechsalon"
price: "VT22564"
currency: VUV
in_stock: false
url: https://www.desertcart.vu/products/36809310-9004-high-low-beam-slimline-ceramic-relay-wiring-harness-100w
store_origin: VU
region: Vanuatu
---

# 9004 High Low Beam SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon 12v PlugNPlay

**Brand:** autotechsalon
**Price:** VT22564
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** 9004 High Low Beam SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon 12v PlugNPlay by autotechsalon
- **How much does it cost?** VT22564 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/36809310-9004-high-low-beam-slimline-ceramic-relay-wiring-harness-100w)

## Best For

- autotechsalon enthusiasts

## Why This Product

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

## Description

Our AutoTechSalon Premium 9004 ceramic fused halogen relay wiring harness is quite simply THE best in the business! Safely and effectively increase the brightness of your current 9004 headlight bulbs from a single harness!! Fully plug and play 30 minute installation requires no messy cutting or splicing (installation diagram in our picture gallery). 
 
 Ever notice how your headlight bulbs simply seem dull or get dimmer at night when you have other accessories on such as your defroster/stereo/AC/ etc? That's where our harness comes in. Stock OEM headlight harnesses and plugs are simply unable to handle the heavy loads of day to day driving while maintaining maximum power efficiency. Utilizing this kit, you will notice a significant increase in brightness and output from your vehicles' stock or aftermarket 9004 halogen bulbs, due to your lights now drawing power more efficiently from your battery. 
 
 Comes with everything out of the box needed to upgrade your flimsy, OEM headlight sockets and wiring to the highest quality, precision engineered ceramic sockets. The pics speak for themselves: these harnesses are top quality throughout and feature the best components to ensure both a safe and economical upgrade to any motorcycle or vehicle. 
 
 Features all 24k gold plated contacts for maximal power transfer and efficiency, a revised monoblock relay input assembly, along with new weather/electromagnetic shielded custom-molded rubber sleeving for an over 50% space conservation over our competition! 
 
 An inline 40 amp replaceable blade fuse (included) ensures your vehicles engine compartment and electrical components do not incur any damage in case of a shortage or voltage spike. 
 
 This harness is a MUST for any vehicle currently equipped with 9004 sized headlight bulbs or foglights! Experience the difference today, with brighter lit roads and increased night driving safety!

## Features

- Typical results yield at least a 1 volt increase to the bulb socket leads, resulting in 30-50% greater output from your stock or aftermarket halogen bulbs.
- Dual MONSTROUS 40amp independent relays, housed in beautiful translucent casings, offering the highest level of protection and reliable operation for h4 bulbs up to 100 watts!  Redesigned monoblock relay input assembly offers more robust durability than our previous design.
- Simple plug and play 30 minute installation...zero messy cutting or splicing. Retain all original vehicle integrity and functionality.
- NEW Custom molded flexible rubber insulation tubing offers a space savings of over 50% over our competition.  Fully weather/puncture resistant, unlike other harnesses which feature flimsy, ill fitting ribbed plastic tubing.
- Includes 3 industrial strength translucent zip ties as a bonus, for a complete 'out of the box' upgrade solution

## Images

![9004 High Low Beam SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon 12v PlugNPlay - Image 1](https://images-na.ssl-images-amazon.com/images/I/51kUgQ0snGL.jpg)
![9004 High Low Beam SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon 12v PlugNPlay - Image 2](https://images-na.ssl-images-amazon.com/images/I/51XyX0WsMgL.jpg)
![9004 High Low Beam SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon 12v PlugNPlay - Image 3](https://images-na.ssl-images-amazon.com/images/I/51CS476LivL.jpg)
![9004 High Low Beam SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon 12v PlugNPlay - Image 4](https://images-na.ssl-images-amazon.com/images/I/41BcMNmSwBL.jpg)
![9004 High Low Beam SLIMLINE Ceramic Relay Wiring Harness 100w Headlight Foglight Bulb Booster AutoTechSalon 12v PlugNPlay - Image 5](https://images-na.ssl-images-amazon.com/images/I/41bmf2pn7KL.jpg)

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**Shop now:** [https://www.desertcart.vu/products/36809310-9004-high-low-beam-slimline-ceramic-relay-wiring-harness-100w](https://www.desertcart.vu/products/36809310-9004-high-low-beam-slimline-ceramic-relay-wiring-harness-100w)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-16*