2003 Toyota 4Runner Trailer Wiring

Keep Your 2003 Toyota 4Runner in Top Shape with a Quality Trailer Wiring

When it comes to maintaining or upgrading your 2003 Toyota 4Runner, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Trailer Wiring for your 4Runner. We currently carry a top Trailer Wiring in stock that is built to last. Whether you’re replacing a damaged Trailer Wiring or looking to upgrade, our selection for the 2003 Toyota 4Runner ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

A Reliable Trailer Wiring from a Trusted Brand

When it comes to trusted Trailer Wiring brands, we’ve got you covered. Our inventory features a Trailer Wiring from Hopkins, a brand you can count on. This Trailer Wiring starts at just $39.99 and has a rating of 4 stars from over 96 customer reviews. After you purchase your 2003 Toyota 4Runner Trailer Wiring you can scroll below to see options other Toyota 4Runner owners are loving. Even with only one Trailer Wiring in stock, you can be confident you’re getting the best option available and designed to fit your 4Runner perfectly, offering both functionality and style.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Trailer Brake Control Parts and Trailer Hitches to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2003 Toyota 4Runner running smoothly and looking great.

Essential 2003 Toyota 4Runner Trailer Wiring

Husky Towing – 4 Way Flat And 7 Way Round, Utilizes Oem Connectors, 2 Door Connector Protection (Part No.33059)

4 Way Flat And 7 Way Round, Utilizes Oem Connectors, 2 Door Connector Protection

from

$57.99
Husky Towing Products Offers Innovative Designs, High Quality, Custom Installation And Safe, Easy Operation. Husky Is Source For A Complete Line Of Hitches, Electrical Products And Towing Accessories.

Product Features:
  • Provides Multiple Towing Options From One Connector
  • Connects To Your Vehicle OEM Tow Package Connector
  • Exact OEM Replacement For Enhanced Fit And Maximum Weatherproofing
  • Applies To Over 18 Different Vehicle Makes Equipped With A Factory Tow Package
  • High Impact, ABS Plastic Construction
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Husky Towing – 7-Way Blade And 4-Way Flat, Plug-In Style (Part No.33058)

7-Way Blade And 4-Way Flat, Plug-In Style

from

$49.99
Husky Towing Products offers a complete line of hitches, brake assemblies, jacks, sway control solutions, and essential towing accessories. Each Husky product is precision engineered, constructed with durable, quality materials, and is rigorously tested to industry safety standards. Hitches are what Husky does best. From Class III receivers, to 5th wheels, to weight distribution hitches, Husky hitches help keep your towables safe and secure. Husky also offers accessories to accompany your hitch including hitch balls, shanks, locks, and more Electric tongue jacks, electrical and brake products, and cargo carriers are just a few other categories that make any towing experience easier.

Product Features:
  • Connects To Your Vehicle OEM Tow Package Connector
  • Easy-Open, Weatherproof Lid With Rugged, Oversized Hinge Allows Lid To Open 180 Degrees
  • Impact And Corrosion Resistant
  • Plug-In Simple(R) , No Cutting, No Splicing, Saves Time
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Hopkins – 46155, 4 Flat Universal Towing Connector Kit w/converter (independent bulb turn signals) (Part No.46155)

46155, 4 Flat Universal Towing Connector Kit w/converter (independent bulb turn signals)

from

$39.99
The 46155 Universal Taillight Converter Kit has everything needed to make a vehicle equipped with independent turn signals tow ready. By including splice connectors and a circuit probe tester, this kit includes the extra tools required to complete the project.

Product Features:
  • 60 inch length
  • Electronic Taillight Converter adapts tow vehicles taillight system to the trailer’s
  • Double-molded weatherproof design
  • Includes L.E.D. circuit tester, 3 splice connectors, cable ties, dust cover, ground screw, and grease packet
  • Includes 4 wire flat extension
  • Includes vehicle side 4 flat
  • Includes dust cover and grease packet to prevent corrosion
  • Includes Dust Cover And Grease Packet To Prevent Corrosion
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Hopkins – 40955, Multi-Tow® FORD / GM 7 Blade and 4 Flat Wiring Kit (Part No.40955)

40955, Multi-Tow® FORD / GM 7 Blade and 4 Flat Wiring Kit

from

$42.99
Tow more than one trailer? Multi-Tow® design feature adds multiple towing options from one connector by providing sockets for towing both 7 blade and 4 flat trailers. This connector is Plug-In Simple!® with no cutting or splicing, saving you time by utilizing an OEM connector to create an exact fit for easy installation and maximum weatherproofing.

Product Features:
  • Multi-Tow® provides multiple towing options from one connector
  • Plug-In Simple!® Wiring Kit
  • Utilizes OEM connectors create an exact fit and maximum weatherproofing
  • Includes mounting bracket and hardware
  • Impact and corrosion resistant
  • Fits in standard 7 blade bracket
  • Includes Step-By-Step Instructions
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Hopkins – Plug-and-Play Towing Wiring Kit with OEM Connectors (Part No.41155)

Plug-and-Play Towing Wiring Kit with OEM Connectors

from

$25.99
Dont splice onto your vehicles factory wiring harness. Simply plug in this Hopkins? vehicle wiring kit featuring exact OEM matching connectors for a perfect weather-tight fit. This kit includes the accessories needed to get you towing faster.

Product Features:
  • Plug-In Simple? Wiring Kit
  • Utilizes OEM Connectors For Enhanced Fit And Weatherproofing
  • Includes Vehicle Side 4 Flat
  • Corrosion Resistant Terminals
  • Impact And Corrosion Resistant
  • Includes Dust Cover And Grease Packet To Prevent Corrosion
  • Includes Step-By-Step Instructions
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Hopkins – Trailer Tail Light Converter: Protects Vehicle Electronics, Powers up to 5.0A (Part No.46255)

Trailer Tail Light Converter: Protects Vehicle Electronics, Powers up to 5.0A

from

$70.99
Many of today’s vehicles do not possess the electrical means for powering the extra voltage requirements of a trailer. Power Taillight Converters units completely isolate the tow vehicle from trailer malfunctions. Power is taken directly from the battery for isolation and brighter trailer tail lights.

Product Features:
  • For vehicles equipped with independent bulb turn signals or common bulb systems
  • Protects tow vehicle electronics from wiring shorts
  • Includes 14 ga. power lead wire, fuse & fuse assembly, splices, and cable ties
  • Powers up to 5.0 amps per output
  • Receives power directly from the battery
  • Includes vehicle side 4 flat
  • Includes dust cover and grease packet to prevent corrosion
  • Includes Dust Cover And Grease Packet To Prevent Corrosion
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Hopkins – Connector (Part No.46365)

Connector

from

$99.99
Many of today’s vehicles do not possess the electrical means for powering the extra voltage requirements of a trailer. Power Taillight Converters units completely isolate the tow vehicle from trailer malfunctions. Power is taken directly from the battery for isolation and brighter trailer tail lights. The Short-Proof Power Taillight Converter is also a self-resetting power converter that will reset after the short has been fixed in the trailer wiring, providing extra protection for the vehicle wiring.

Product Features:
  • For Vehicles w/Independent Bulb Turn Signals/Common Bulb System
  • Protects Tow Vehicle Electronics And Itself From Wiring Shorts
  • Self-Resetting
  • Includes 12 Ga. Power Lead Wire
  • Includes Fuse/Fuse Assembly/Splices/Cable Ties
  • Powers Up To 8.0 Amps Per Output
  • Receives Power Directly From The Battery
  • Includes Vehicle Side 4 Flat
  • Includes Dust Cover And Grease Packet To Prevent Corrosion
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Most Popular Trailer Wiring Harnes for 2003 Toyota 4Runners

Enhance your 2003 Toyota 4Runner with this popular Trailer Wiring Harnes we have in stock, for $39.99.

Hopkins – 46155, 4 Flat Universal Towing Connector Kit w/converter (independent bulb turn signals) (Part No.46155)

46155, 4 Flat Universal Towing Connector Kit w/converter (independent bulb turn signals)

from

$39.99
The 46155 Universal Taillight Converter Kit has everything needed to make a vehicle equipped with independent turn signals tow ready. By including splice connectors and a circuit probe tester, this kit includes the extra tools required to complete the project.

Product Features:
  • 60 inch length
  • Electronic Taillight Converter adapts tow vehicles taillight system to the trailer’s
  • Double-molded weatherproof design
  • Includes L.E.D. circuit tester, 3 splice connectors, cable ties, dust cover, ground screw, and grease packet
  • Includes 4 wire flat extension
  • Includes vehicle side 4 flat
  • Includes dust cover and grease packet to prevent corrosion
  • Includes Dust Cover And Grease Packet To Prevent Corrosion
See More

Top-Rated Trailer Wiring Brands For Your 2003 Toyota 4Runner

When it comes to finding the perfect Trailer Wiring for your 2003 Toyota 4Runner, Advance Auto Parts has you covered with our Trailer Wiring from Hopkins. This popular brand is known for its exceptional customer ratings and competitive prices, under $39.99. Purchasing a Trailer Wiring from us here at Advance Auto Parts is a smart move for both you and your 2003 Toyota 4Runner, providing peace of mind with parts that meet or exceed OEM standards.

A Reliable Hopkins Trailer Wiring For Your 2003 Toyota 4Runner

If you’re looking for a top-quality Trailer Wiring for your 2003 Toyota 4Runner, Advance Auto Parts has exactly what you need with our Hopkins Trailer Wirings. This Trailer Wiring has both durability and a precision fit. Coming in at only $39.99, this is the perfect Trailer Wiring for your needs and budget. Hopkins Trailer Wiring for the 2003 Toyota 4Runner come highly rated, with over 16 customer reviews. Choosing a Hopkins Trailer Wiring from Advance Auto Parts is a smart move to ensure quality and value for your vehicle.
46155, 4 Flat Universal Towing Connector Kit w/converter (independent bulb turn signals)
from $39.99
(16)
46155, 4 Flat Universal Towing Connector Kit w/converter (independent bulb turn signals)
“The splice connectors were better than expected, easy to use. Love the included tester, takes guess work out of it. Made for an easy install and every”

FAQs for 2003 Toyota 4Runner Trailer Wirings

What’s the price range for 2003 Toyota 4Runner Trailer Wiring?

We currently have just one Trailer Wiring for the 2003 Toyota 4Runner in stock: 46155, 4 Flat Universal Towing Connector Kit w/converter (independent bulb turn signals) and it costs $39.99.

Does Advance Auto Parts sell Trailer Wiring for other Toyota 4Runner model years?

Yes, we carry Trailer Wiring for 33 model years of Toyota 4Runners between 1984 and 2021. The following model years are the most popular for Trailer Wiring purchases: 2021, 2020, 2019, 2018, 2017, 2016, 2015, 2014, and 2013.

Does Advance Auto Parts sell Trailer Wiring for any other 2003 Toyota models?

Yes. We stock Trailer Wiring for 13 other popular 2003 Toyota models. Some of the most popular are 2003 Corolla Trailer Wiring, 2003 Camry Trailer Wiring, 2003 Land Cruiser Trailer Wiring, 2003 Celica Trailer Wiring, and 2003 Avalon Trailer Wiring.

What are the top-rated Trailer Wiring that fit the 2003 Toyota 4Runner?

The one 2003 Toyota 4Runner Trailer Wiring we have in stock is the 46155, 4 Flat Universal Towing Connector Kit w/converter (independent bulb turn signals). It is rated 4 stars and costs $39.99.

What types of Trailer Wiring do you sell for my 2003 Toyota 4Runner?

We currently have just 1 Trailer Wiring in stock for a 2003 Toyota 4Runner, and as of 11/2/25, it is a Trailer Wiring Harnes.

Can I get help with 2003 Toyota 4Runner Trailer Wiring orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Toyota Trailer Wiring and more.

What is your return policy for Toyota 4Runner Trailer Wiring?

Advance Auto Parts keeps returns simple. For new Toyota 4Runner Trailer Wiring and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.