Mazda RX-3 Trailer Wiring Harness

Your Mazda RX-3 will be happy to know that the search for the right Trailer Wiring Harness you’ve been looking for is over! Advance Auto Parts has 1 different Trailer Wiring Harness for your vehicle, ready for shipping or in-store pick up. The best part is, our Mazda RX-3 Trailer Wiring Harness start from as little as $70.99.

When it comes to your Mazda RX-3, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Trailer Wiring Harness brands so you can shop with complete confidence. Some of our top Trailer Wiring Harness brands are Hopkins. We’re sure you will get the right product to keep that RX-3 running for a long time.

We even have reviews of our OEM and aftermarket Trailer Wiring Harness products to help you buy with confidence. Hear from other customers via the 14 reviews on parts for your Mazda RX-3.

Shop online, find the best price on the right product, and have it shipped right to your door. If you prefer to shop in person for the right Trailer Wiring Harness for your RX-3, visit one of our local Advance Auto Parts locations and you’ll be back on the road in no time!

Compare 6 Mazda Trailer Wiring Harness

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)

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$38.99
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 – 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

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$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 – 40915, FORD / MERCURY Vehicle Specific Towing Wiring Kit (Part No.40915)

40915, FORD / MERCURY Vehicle Specific Towing Wiring Kit

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$18.99
Don’t splice onto your vehicle’s 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 – 40215, FORD / MAZDA Vehicle Specific Towing Wiring Kit (Part No.40215)

40215, FORD / MAZDA Vehicle Specific Towing Wiring Kit

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$33.99
Don’t splice onto your vehicle’s factory wiring harness. Simply plug in this Hopkins® vehicle wiring kit featuring exact OEM matching connectors for a perfect weather-tight fit. This kit provides a taillight converter that adapts the vehicle’s independent lights to the trailer’s common lights. Required accessories are included 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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CURT – Powered Converter Wiring Kit (10 Amps) (Part No.55151)

Powered Converter Wiring Kit (10 Amps)

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$20.79
When your vehicle does not readily provide an electrical connection for hooking up your trailer, CURT electrical converts offer the solution. Working tail lights on your trailer are absolutely essential any time you tow, and a converter provides an effective way to properly equip your vehicle for safe towing. A CURT electrical converter, much like our custom vehicle-to-trailer wiring harnesses, provides a trailer connector on your vehicle by slicing into the vehicle’s electrical system. Electrical converters are designed to splice directly into the taillight wiring, rather than plugging into various sockets, giving them the nickname “taillight converters”. Though it requires a little extra work compared to a custom wiring harness, a tail light converter offers a reliable, long-term connector solution. This converter wiring kit is intended to be used with various CURT powered taillight converters. Powered converters require a direct connection to the vehicle’s battery, and the powered converter wiring kit #55151 provides all of the components needed to establish a secure connection. The kit includes 20 feet of 12 gauge wire, a 10-amp fuse, an in-line fuse holder, a 3/8″ ring terminal, a butt connector, a 14-1/2″ cable tie and eight 6″ cable ties. This wiring kit is rated at 10 amps and comes included with CURT powered electrical converters #59146, #59187, #59190, #59200 and #59201.

Product Features:
  • Routes power from vehicle battery to powered converter
  • Designed for use with battery-powered electrical converters
  • 20′ of 12 gauge cross-linked wire for flexible installation
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CURT – Custom Wiring Harness (4-Way Flat Output) (Part No.56300)

Custom Wiring Harness (4-Way Flat Output)

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$74.99
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness — also called a T-connector — is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Mazda CX3 (to verify your vehicle compatibility, see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination — maybe it’s the boat landing at your favorite fishing spot, maybe it’s a campsite that overlooks one of nature’s masterpieces, or maybe it’s the next big jobsite. However, turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup.

Product Features:
  • Plugs into vehicle tail light assembly to provide a 4-way flat socket
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 4-way flat output connects tail lights, brake lights and turn signals
  • Equipped with a powered 3-wire to 2-wire tail light converter
  • Constructed with SMT circuitry for better performance and durability
  • Dust cover included to keep connector clean when not in use
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