10 Best Conversion Subaru Wiring Harness – Review And Buying Guide

Have you ever wondered what is the best conversion subaru wiring harness? Well, I did, so I went on a hunt to find out. It turns out that it was relatively hard to do because there are many aspects to consider. Besides, everyone has different needs and preferences. However, after careful research, I was able to create my personal list of the top conversion subaru wiring harness right now, which I’m going to share with you today.

Finding the best conversion subaru wiring harness for your budget if you’re looking for some help keeping yourself in shape or need guidance on where to start. This review gives you an overview of your options. There is a lot of conversion subaru wiring harness on the market; which one should you buy? I’ve reviewed and rated 10 of the most popular products in this article.

A selection process

We analyzed a wide range of conversion subaru wiring harness to provide a great overview of the current market. Each was objective across a few criteria to determine relative levels of performance. We compare each across the different factors to determine which products are best for specific applications. Based on our expert recommendations, we have selected our top picks:

  • Size
  • Brand value
  • Features
  • Specifications
  • Durability
  • Quality
  • materials
  • Style
  • Design
  • Longevity
  • Consumer ratings & reviews
  • Product price
  • Warranties
  • Types

10 conversion subaru wiring harness: Editor Recommended

10 conversion subaru wiring harness Review:

1. H4 LED Headlight Wiring Harness [Negative Switched Conversion] [Fused] H4 Head Light Relay Harness Kit for 9003 H6054 H5054 H6054LL 6014 6052 6053 Subaru Toyota Head Lights

Features :

  • YOUR VEHICLE NEEDS THIS – Swapping out old headlights ( H6054 H5054 H6054LL 6014 6052 6053) for LEDs on negative switched vehicles like Toyota, Subaru, Mitsubishi, or Suzuki, is not a simple job. But with our plug-n-play conversion harness it can be!
  • CONVERSION MADE EASY – Save time, money, and headache by utilizing this wiring harness to convert a ground switched headlight system (2 toggled grounds + 1 constant hot) to a positive switched headlight system (2 toggled hots + 1 constant ground).
  • NO LOW-QUALITY PARTS HERE – Designed with two durable relays, high-temperature ceramic headlight sockets, and heat-resistant polycarbonate wire loom. This harness is built to last.
  • THE WAY IT SHOULD BE – We set out to build a harness that would install with as little effort as possible. The result? A conversion harness that takes only minutes to install and works every time.
  • PRESERVE YOUR STOCK COMPONENTS – The beauty of this conversion harness is that you don’t need to cut into your stock wiring harness. This dramatically reduces the install time, and if you need to, even makes the process completely reversible.

Additional Info :

Item Dimensions
Height 4
Width 7.88
Length 10.25
Weight 0.6503636729

2. Scosche SU03B 1993-Up Subaru Power/Speaker Connector

Features :

  • Connects to the factory stereo harnesses when installing an aftermarket stereo
  • Not compatible with factory amplified systems
  • Direct Connection to the factory harness without cutting any wires
  • Manufactured with factory quality wire and Connector / Wire Harness for Aftermarket Stereo Installation with Color Coded Wires

Additional Info :

Color Multicolor
Item Dimensions
Height 0.5
Width 4
Length 6
Weight 0.19
Release Date 2016-02-09T00:00:01Z

3. Oyviny Custom 4 Pin Trailer Wiring Harness for Subaru Forester 2009-2022/Outback 2010-2022/XV Crosstrek 2013-2015/Crosstrek 2016-2022/ Ascent 2019-2022, Forester Towing Wiring

Features :

  • Forester Trailer Wiring Harness. This aftermarket 4 pin forester tow harness fits for Subaru Forester 2009-2022, for Subaru Outback 2010-2022, for Subaru XV Crosstrek 2013-2015 (Except Hybrid), for Subaru Crosstrek 2016-2022 (Except Hybrid), for Subaru Ascent 2019-2022
  • Easy Installation. Custom fit crosstrek trailer wiring require No any cutting or splicing! Just”Plug and Play”. Directly plug the custom connector into the existing connector and you have lights on your trailer from the tow vehicle
  • Standard 4 Way Connector. Plug-in 4-flat trailer wiring is compatible with a wide variety of trailers, adding versatile towing options for your vehicle.The plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals
  • Dust Cover. Both 4 way flat trailer light connector and fuse are equipped with rubber dust cap that protect the components from dust and water to prevent rusting and short circuit, ensure long-lasting use
  • Durable Construction. Outback trailer plugs and the trailer converter are made from high strength and good toughness ABS plastic, With advanced manufacturing technology, the outback trailer hitch wiring kit is with high reliability and high performance

4. iJDMTOY (2) H7 To 9005/9006/HB4 Pigtail Wire Wiring Harness Adapters Compatible With Headlight Conversion Retrofit

Features :

  • (1 pair) H7 male adapter with 9005/9006/HB3/HB4 female adapter
  • Pre-wired for an easy plug and play installation without have to modify the stock wires/sockets at all
  • Perfect for converting H7 headlight housings to use 9006/9005 bulbs during some projector retrofit, stock/aftermarket headlamp swap, etc
  • If the high beam and low beam are reversed after using this product, simply flip the adapter around and try again

Additional Info :

5. (2) iJDMTOY H4 9003 To H13 9008 Pigtail Wire Wiring Harness Adapters Compatible With H4/H13 Headlight Conversion Retrofit

Features :

  • Quantity: 1 pair (left side and right side harness)
  • 9003/H4/HB2 male adapters, H13/9008 female adapters
  • Pre-Wired for Plug and Play. No need to modify the stock wires at all
  • Compatible with Ford Chevy Dodge GMC, etc
  • If the high beam and low beam are reversed after using this product, reverse the blue and red wires around by flipping the pins.

Additional Info :

6. Boss Part # MSC04753-13 Pin Repair Kit for Vehicle Side Harness

Features :

  • Boss Part # MSC04753 – 13 Pin Repair Kit for Vehicle Side Harness

Additional Info :

Item Dimensions
Height 11
Width 11
Length 11

7. Car Horn One-to-Two Converter Wiring, Plug-and-Play Y type Horn Adapter Wiring Harness Compatible with Toyota Lexus Subaru.

Features :

  • Horn Converter Fit: Compatible with Toyota, Lexus, Subaru, etc.
  • Without damaging the original car’s horn cable, use a one-to-two horn harness to turn one horn in your car into two horns.
  • Plug and Play Horn Adapter: Put directly into car horn connector to make installs quick and easy.
  • Car Speaker Harness Length:36cm/14.1in
  • Package Content: 1 x Y type car horn adapter wiring harness, The horn is not included, only the conversion plug is provided.

Additional Info :

Color Toyota

8. iJDMTOY 12-Inch OEM Dashboard Push Button Fog Light Switch Conversion Adapter Wire For Aftermarket Relay Harness Use (Switch Not Included)

Features :

  • 12 inches long conversion wiring (white male 3-pin adapter to green female 10-pin socket, switch is not included)
  • Good for most 12V aftermarket relay wiring kit with the universal peel-n-stick tear-drop shape switch
  • Replace the universal aftermarket teardrop shape switch harness to fit the more professional looking OEM spec push-button switch located at the left lower corner under the steering wheel or at the center dashboard
  • Perfect for fog light, off-road driving light or light bar upgrade

Additional Info :

Item Dimensions
Weight 0.0375

9. iJDMTOY (2) 9006/HB4/H10 to 5202/P13W Pigtail Wire Wiring Harness Adapters Compatible With Fog Light Conversion Retrofit

Features :

  • (1 pair) 9006/9005/H10 male adapter with 5202/2405/PSX24W/P13W female adapter
  • Pre-wired for an easy plug and play installation without have to modify the stock wires/sockets at all
  • Perfect for converting the 9006/9005/H10 headlight or foglight stock harness to use 5202/2504/PSX24W/P13W bulbs during some projector retrofit, stock/aftermarket headlamp/foglamp swap, etc
  • If the high beam and low beam are reversed after using this product, simply flip the adapter around and try again

Additional Info :

Item Dimensions
Weight 0.05

10. iJDMTOY Headlight High/Low Conversion Relay Wire Harness Compatible With Original H4 Headlamps To Separated 9005/9006 High Beam & Low Beam Headlights

Features :

  • Convert the original H4 headlight/harness to work with individual 9005 high beam/9006 low beam headlamps
  • Made with heavy duty wirings and adapters to work up to 150W
  • Perfect for upgrading aftermarket headlights, halo headlights or retrofit projector headlights

Additional Info :

Item Dimensions
Weight 0.5

Buying Guide of  conversion subaru wiring harness:

The best way to make the most of your time is to list the things you want to buy, weighing all the factors before deciding. There are many ways this post can suggest that will help you do this and avoid purchasing the wrong product. If you’re in a hurry for some reason, take our word for it don’t buy anything until you’ve finished reading this post! These factors will help you make the right decision when buying a product. Here are some of the things that you should consider before buying a product:

  • Price: How much are you willing to spend on your new product? If money is not an issue, you can choose the most expensive option. However, if you have a tight budget, then it is important to choose one that fits your needs and budget.
  • Durability: You need to consider how long your conversion subaru wiring harness will last before you buy it. Investing in something that will last longer than buying something that will break down after just a few uses is always better.
  • Quality: The quality of conversion subaru wiring harness should be considered before buying it. A good product will have high-quality materials used during manufacturing and construction.
  • Brand: The brand reputation of a particular product is also important because it tells you how reliable they are and how they stand behind their products.

Here is a brief description of important factors for buying a product:

Check Reviews

This is a great way to know what other people have experienced with conversion subaru wiring harness. You can check out user reviews on Amazon or other websites where users can post their thoughts on a product. The best place to look for reviews is on Amazon, which has a star rating system that gives you an idea of how good or bad a product is. If there are enough reviews with bad ratings (less than 3 stars), it’s probably not worth buying that product.

Look at the price

This may seem obvious, but it’s important not to just look at how much something costs and decide that it’s too expensive. Instead, you should compare prices between different sellers and see which offers more value for money! For example, if you find a similar product for $10 cheaper elsewhere, it might be worth buying from that seller instead of the first one you came across!

Type of product

There are many types of conversion subaru wiring harness you can buy. Some are basic, while others are advanced. You need to determine what type of product you need and then buy one that fits your needs. For example, if you want a simple product, the best choice is a basic one. However, suppose you want something more advanced. In that case, it’s better to get an expensive one because it will have extra features.


The product size also matters when choosing the right conversion subaru wiring harness for yourself or someone else, as different people have different requirements when using their products. For example, if there is someone who uses large sized products or devices, then he/she would need something bigger than others who use smaller devices or tools. Therefore, it is important that you look at the size of each product before purchasing them so that they can meet all your needs and requirements in terms of size.


You need to buy a branded product because it has been tested and proven effective by many people before you buy it. Brands also have guarantees on their conversion subaru wiring harness so that if anything happens to your new item within the warranty period, they will repair it or replace it without hassle.


You should consider how long the conversion subaru wiring harness will last. This is because it is important for you to buy something that will serve your needs for years. If many people have used a particular product without any problem, then it means that it is durable and can serve your purpose well.

Easy to Use

When buying a conversion subaru wiring harness, make sure that it is easy to use so that you do not experience any difficulties while using it after purchase. Some conversion subaru wiring harness may look great but are too complicated for your level of expertise or knowledge about them. Make sure that the product is user-friendly so that even someone who does not have much experience can use it comfortably without any problems or inconveniences whatsoever.

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