---
product_id: 60786355
title: "KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem"
brand: "kaslight"
price: "¥8508"
currency: JPY
in_stock: true
reviews_count: 11
category: "Kaslight"
url: https://www.desertcart.jp/products/60786355-kaslight-1set-2-headlight-wiring-harness-h4-relay-harness-h6054
store_origin: JP
region: Japan
---

# 12V power optimized Fixes dim & flicker Plug-n-play install KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem

**Brand:** kaslight
**Price:** ¥8508
**Availability:** ✅ In Stock

## Summary

> 💡 Illuminate your drive, ditch the dim—upgrade your ride’s eyes today!

## Quick Answers

- **What is this?** KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem by kaslight
- **How much does it cost?** ¥8508 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/60786355-kaslight-1set-2-headlight-wiring-harness-h4-relay-harness-h6054)

## Best For

- kaslight enthusiasts

## Why This Product

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

## Key Features

- • **Dual Ground Fix:** Eliminates dual ground issues common in Toyota Tacoma & Pickup models, ensuring both beams work perfectly.
- • **Seamless LED Upgrade:** Effortlessly convert your old H4 headlight system to positive-switched for flawless LED performance.
- • **Plug & Play Simplicity:** No complex rewiring—easy installation saves time and costly mechanic visits.
- • **Universal Compatibility:** Fits multiple vehicles including Toyota, Jeep, Subaru, Mitsubishi & Suzuki with 7x6 or 5x7 LED headlights.
- • **Enhanced Night Visibility:** Say goodbye to dim, flickering, or malfunctioning headlights—experience brighter, safer drives.

## Overview

The KASLIGHT 1Set 2 Headlight Wiring Harness is a vehicle-specific, plug-and-play relay kit designed to fix dual ground and dim headlight issues in Toyota Tacoma (95-97), Toyota Pickup (88-95), and similar models. It converts ground-switched systems to positive-switched, ensuring both high and low beams function flawlessly with LED or halogen H4 headlights. Compatible with multiple 7x6 and 5x7 LED headlight types, this 12V harness enhances night visibility, prevents flickering, and protects against overheating plugs, making it an essential upgrade for professional-grade automotive lighting performance.

## Description

Buy KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem: Wiring Harnesses - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Worked great for 92 VW Cabrio - Installed very easily. Plenty of wire length to rout the way you want. seems to be good quality
Review: Great quality - This product is fantastic, great quality easy to install worked perfectly in my 1965 Mustang.

## Features

- 【YOUR VEHICLE NEEDS THIS】Perfectly match old led headlight H6054 H5054 H6054LL 6014 6052 6053 [Fused] [negative switched conversion] vehicles like Toyota, Jeep Pickup, Tacoma, Subaru, Mitsubishi, or Suzuki 7x6 5x7 led headlight harness.
- 【UPGRADE MADE SIMPLE】As Toyota Pickup and Toyota Tocoma use a double ground which leads to the headlights not work or only one beam work, this h4 Harness is a must to fix the problem.Ditch the hassle and save some serious cash by using this h4 wiring harness to flip your headlight system from ground-switched (2 toggled grounds + 1 constant hot) to positive-switched (2 toggled hots + 1 constant ground). Easy peasy!
- 【FIX DIM HEADLIGHT ISSUES】This 1set 2-headlights h4 headlight relay harness Fixes cars with 2 pcs H4 plug headlamps, such as 7x6 5x7 headlights. Problems like Dim Headlights, Flickering Headlights, Back Feeding Power, Malfunctioning Headlights when using Hi/Low Beams can be fixed with this kaslight 2-headlight h4 headlamp relay. Make a big improvement for visibility on your cars at night.
- 【IMPORTANT NOTICE】If your socket pin is not standard, KASLIGHT H4 9003 HB2 Wiring Harness is needed, as To-yota Pickup and To-yota Tocoma use a double ground which leads to the headlights not work or only one beam work, this Harness is a must to fix the problem.
- 【ALSO FIXES】: Overloading the Headlight Switch, Overheating Plugs. If you are upgrading to LED Bulbs or are having trouble with your 7"x6"headlight, 4x6"led headlight, 5-3/4" or any other H4 plug headlights not working properly, plug-n-play conversion harness, this is your fix!! Package includes one set h4 socket led headlight relay kit.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07B9QQMMH |
| Auto Part Position | Inner |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #18,132 in Automotive ( See Top 100 in Automotive ) #50 in Automotive Replacement Electrical Wiring Harnesses |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,952) |
| Date First Available | March 7, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 12 ounces |
| Item model number | 8542081869 |
| Lift Type | Automatic |
| Light Color | 4000K Cool White, 6500K Bright White |
| Manufacturer | KASLIGHT |
| Manufacturer Part Number | KAJE-0003 |
| Number of Pieces | 2 |
| Package Dimensions | 7.05 x 4.45 x 2.83 inches |
| Set Name | 1 Set |
| Special Features | ;1989 toyota pickup headlights 1991 toyota pickup headlights 1992 toyota pickup headlights 92 toyota pickup parts h4 bulb socket h4 female plug h4 headlight harness switch kit h4 headlight relay harness for 1995 tacoma h4 headlight relay harness h4 headlight wiring harness h4 led relay h4 new headlight harness h4 relay harness kit-1 set, headlight relay harness h4 cj7 headlight wiring harness 1993… |
| UPC | 653437481838 |
| Voltage | 12 Volts |

## Product Details

- **Brand:** KASLIGHT
- **Fit Type:** Vehicle Specific Fit
- **Included Components:** H4 Headlight Connector
- **Light Source Type:** Light Emitting Diode (LED)
- **Wattage:** 360 watts

## Images

![KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem - Image 1](https://m.media-amazon.com/images/I/61SKMMTWeoL.jpg)
![KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem - Image 2](https://m.media-amazon.com/images/I/717FyfkG5nL.jpg)
![KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem - Image 3](https://m.media-amazon.com/images/I/71MeZXKnBCL.jpg)
![KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem - Image 4](https://m.media-amazon.com/images/I/71ZLyImizZL.jpg)
![KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem - Image 5](https://m.media-amazon.com/images/I/71fiLkRvojL.jpg)

## Questions & Answers

**Q: Will this work on a 1985 four runner?**
A: jeez...every three months the same question...It'll work great if you're intent is to to set your vehicle on fire and collect the insurance...IT'S GARBAGE!! ...the wire is criminally undersized for the application...it should be 14-16g but it's only 22g ...this can cause it to overheat, melt the insulation and start a fire.....

**Q: Did not come with manual, where can I find it online?**
A: Dear customer,

Pretty sorry for this trouble. Kindly please send email to kaslight2@outlook.com, we will send you the manual accordingly

**Q: Will this work on an 87 toyota pickup ?**
A: I installed it on my 88 Toyota pickup 2wd. The high beam did not work. The high beam relay would work but would not turn the high beam on. Found the wiring on load side of the relay was wired wrong so I had to pull the wires out and relocate them. High and low work good now. If the relays work, but won't turn the lights on, the issue is on the load side. Check the wiring on the relays.

**Q: Will this work on a 93 chevy blazer if not what harness would?**
A: I dont know alot about Chevy blazer but work great in my 93 XJ. I dont see why not,

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worked great for 92 VW Cabrio
*by B***2 on December 30, 2025*

Installed very easily. Plenty of wire length to rout the way you want. seems to be good quality

### ⭐⭐⭐⭐⭐ Great quality
*by M***. on January 9, 2026*

This product is fantastic, great quality easy to install worked perfectly in my 1965 Mustang.

### ⭐⭐⭐⭐⭐ Simple. Effective. Amazing.
*by B***R on September 6, 2020*

Vehicle: 1996 Jeep Cherokee Classic Overview: My headlight switch failed because it provides power to the headlights high/low beams through a factory wiring harness which is underpowered. The factory wiring harness is also the culprit of your dim lights. In my case, the headlight switch burnt up leaving me with no lights. Solution: I replaced the faulty switch and decided to upgrade to the H4 wiring harness. The H4 harness re-routes power to the headlights from the switch to the battery making the lights much brighter and removing the electrical load from the switch (while the switch no longer powers the headlights it will still function as your headlight switch.) Installation notes: The H4 wiring harness is truly plug-and-play. The only additional components I used were self-tapping screws, a piece of sandpaper for cleaning up the locations where I terminated my grounds, standard electrical tape, and a few extra cable ties. The overall length of the harness was plenty long for me. There wasn’t a whole lot of extra space to mount the relays next to the battery but it was doable. Had I simply taken 5 minutes to remove the battery it would have been a breeze. Total install time was about 90 minutes. Results: Noticeably brighter OEM headlights. Happy headlight switch and your vehicle will be ready for H4 aftermarket LED headlights (which you’re going to eventually do anyway right?) The harness itself comes with an in-line 30-amp breaker for your battery hookup and 2-80 amp relays. As an electrician by trade, I was impressed with the overall product quality. The crimps were strong and secure. The only thing that concerns me about this entire project would be the fact that the relays are not water-proof which may be an issue for the 4x4 crowd who would much prefer driving through a creek than over it. Final note: There are great install videos on YouTube if you are new to these things. Even for a novice DIY project, trust me, this is as simple and straightforward as the reviews indicate. Last comment, terminate your grounds correctly. Years of experience as a sparky, it’s not the harness that’s not working it’s because you didn’t land your grounds right.

## Frequently Bought Together

- KASLIGHT 1Set 2 Headlight Wiring Harness H4 Relay Harness H6054 LED Headlight Connector Socket Kit for 9003 6054 Toyota 95-97 Tacoma 88-95 Pickup Headlamp Fix Dual Light Dim Dual Ground Problem
- HWSTAR 2022 180W 1000% Bright H6054 5x7 7x6 Led Headlights Compatible with Jeep Cherokee XJ Wrangler YJ [ DOT][Anti-glare][DRL Turn Signal][Hi/Low Sealed Beam] Ford Chevy GMC Toyota Nissan Dodge etc

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-22*