Trailer Connector Converters of 2025
Best Choice1
CURTCURT 59187 Powered 3-to-2-Wire Splice-in Trailer Tail Light Converter Kit, 4-Pin Wiring Harness
Main highlights- WEATHER-RESISTANT. To help protect this trailer light converter from the elements, it comes with a rubber dust cover for the 4-pin wiring connector, shielding it from rain, dirt, dust and more when not in use
- STANDARD OUTPUT. This tail light converter converts the 3-wire vehicle electrical system to standard 2-wire trailer wiring and provides a standard 4-way flat socket to connect the taillights, brake lights and turn signals for towing
- RELIABLE POWER. This powered 3-to-2-wire taillight converter provides a dependable splice-in trailer wiring harness option, if a CURT custom trailer wiring harness is not available for your vehicle
- READY TO INSTALL. This trailer light converter comes ready to install on your vehicle. It includes a wiring kit to establish a connection to the vehicle battery, as well as snap locks for secure connection of the wires. No heavy-duty flashers required
- COLOR-CODED WIRES. To make installation faster and easier, this trailer wiring converter splices into your vehicle using color-coded wires (3.0 amps signal circuit, 5.0 amps taillight circuit)
9.8Exceptional
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Value for Money2
CURTCURT 56187 Powered 3-to-2-Wire Splice-in Trailer Tail Light Converter, 4-Pin Wiring Harness
Main highlights- WEATHER-RESISTANT. To help protect this trailer light converter from the elements, it comes with a rubber dust cover for the 4-pin wiring connector, shielding it from rain, dirt, dust and more when not in use
- STANDARD OUTPUT. This tail light converter converts the 3-wire vehicle electrical system to standard 2-wire trailer wiring and provides a standard 4-way flat socket to connect the taillights, brake lights and turn signals for towing
- RELIABLE POWER. This powered 3-to-2-wire taillight converter provides a dependable splice-in trailer wiring harness option, if a CURT custom trailer wiring harness is not available for your vehicle
- READY TO INSTALL. This trailer light converter comes ready to install on your vehicle. It includes snap locks for secure connection of the wires, and it requires no heavy-duty flashers (CURT converter wiring kit #55151 required, sold separately)
- COLOR-CODED WIRES. To make installation faster and easier, this trailer wiring converter splices into your vehicle using color-coded wires (3.0 amps signal circuit, 5.0 amps taillight circuit)
9.6Exceptional
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3
MECMOMECMO Multi-Tow 4-Way Flat to 7-Way RV Blade and 4-Way Flat Female End Trailer Wiring Adapter Connector Kit, 4 Pin Vehicle-Side Trailer Light Plug to Dual-output 7 Blade & 4 Flat with Mounting Bracket
9.7 Easy installation9.3 Waterproof8.7 worth the moneyWhy we love it
Versatile towing with dual 4-pin and 7-pin connectors.
Easy installation with included mounting bracket and hardware.
Durable, weatherproof design with dust covers and silicone seals.
9.5Excellent
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4
CARROFIXCARROFIX Powered 3-to-2-Wire Trailer Tail Light Converter with 1.5ft Leads and 4.8ft 4-Way Wiring Harness Connector - LED Compatible
Main highlights- WARNING: THIS TAILLIGHT CONVERTER DOES FITS THE VEHICLE WIRING TYPE OF 2-WIRE OR 3 WIRE SYSTEM, DOES NOT FITS: PWM-ST & PWM-STT SYSTEM
- This electrical converter adapts vehicles with separate turn and brake lights (3-wire system) to standard 2-wire trailer wiring
- Powers up to 5.0 amps for R/L turn & brake
- Included a dust cover to keep your connector clean when not in use
- Comes with 4-way flat connector to power trailer tail lights, brake lights and turn signals
- Color-coded wires match the appropriate vehicle wires as shown
9.4Excellent
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5
United PacificUnited Pacific Trailer Light Converter - 5-Wire to 4-Wire - 18G Bonded - Flat 4-Way Connector0
Main highlights- WHO WE ARE: We are unique individuals whose varied talents and experiences bring value to the way we connect with big rig drivers and car enthusiasts, and the world. With over 30 years of experience, we’re dedicated to the design, manufacturing and supply of automotive products for heavy-duty trucks and classic cars
- WHAT’S IN THE BOX: Included in your order is the following: (ONE) United Pacific Trailer Light Converter. (NOTE: ONLY ONE UNIT will be on the order, if you need multiples, please order accordingly).
- WHAT IT DOES: The United Pacific Trailer Light Converter does just that, it converts your current 5-wire system into a 4-wire system. Why would you need that? Once installed, this is perfect for trailer hookups since you would just plug the 4-pin module on the trailer to your vehicle and you’re set.
- UNITED PACIFIC: United Pacific has a large library of aftermarket parts and accessories from our classic car department to our trucking department. We strive to be the best and offer the best at the best cost! We take pride with our work and products, and it takes countless hours to create the best products out there! Our team is dedicated with providing you with the answers you need when ordering our products
- INSTALLATION & EXTRA INFO: Our United Pacific Trailer Light Converter takes your current 5-wire system (right turn, stop, left turn, tail, and ground) and converts to a 4-wire system (right turn/stop, left turn/stop, tail, and ground). Installation is easy, tap into the correct wires on the car and plug the trailer end to the trailer harness which is a 4-pin plug on the module. The converter is 18-gauge bonded wire with flat 4-way female connector.
9.3Excellent
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6
CURT36% OffCURT 56130 Non-Powered 3-to-2-Wire Splice-in Trailer Tail Light Converter, 4-Pin Wiring Harness
Main highlights- WEATHER-RESISTANT. To help protect this trailer light converter from the elements, it comes with a rubber dust cover for the 4-pin wiring connector, shielding it from rain, dirt, dust and more when not in use
- STANDARD OUTPUT. This tail light converter converts the 3-wire vehicle electrical system to standard 2-wire trailer wiring and provides a standard 4-way flat socket to connect the taillights, brake lights and turn signals for towing
- RELIABLE POWER. This non-powered 3-to-2-wire taillight converter provides a dependable splice-in trailer wiring harness option, if a CURT custom trailer wiring harness is not available for your vehicle
- READY TO INSTALL. This trailer light converter comes ready to install on your vehicle. It includes snap locks for secure connection of the wires, and it requires no heavy-duty flashers or direct battery connection
- COLOR-CODED WIRES. To make installation faster and easier, this trailer wiring converter splices into your vehicle using color-coded wires (3.0 amps signal circuit, 5.0 amps taillight circuit)
9.2Excellent
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7
NEW SUNNEW SUN® 3-Way to 2-Way Trailer Tail Light Converter - 100% Copper, 5-Wire to 4-Pin Flat Harness, Waterproof, Easy Install for Trucks, Towing Vehicles, Non-Powered Easy Installation
Main highlights- ● WATERPROOF AND LONG-LASTING: Solid-state components in waterproof encapsulation. Ensures longevity and performance in all weather. Manages wiring disparities while being durable.
- ● UNIVERSAL COMPATIBILITY: Adapts to a wide variety of trailers. The ultimate towing accessory, broadening your vehicle's towing capabilities. Deals with diverse wiring setups effortlessly.
- ● PROTECTIVE RUBBER DUST COVER: Keeps the 4-pin plug clean and reliable. Works in harmony with the product's wiring solution.
- ● NO HEAVY-DUTY FLASHER NEEDED: Eliminates the need for a cumbersome flasher or direct battery connection. Supports up to 2.1 amps for Turns/Stops circuits and 7.5 amps for Taillight circuit. Handles different wiring systems flawlessly.
- ● INSTALL WITH EASE: Seamlessly melds with your vehicle's electrical system, effortlessly converting your 3-wire setup to a standard 2-wire trailer taillight wiring. EASILY SOLVES THE PROBLEM OF VEHICLE WITH 3-WIRE FRONT LIGHTING SYSTEM AND TRAILER WITH 2-WIRE SYSTEM, ENSURING SEAMLESS INTEGRATION. WHEN THE FRONT VEHICLE BRAKES, THE REAR VEHICLE'S LEFT AND RIGHT TURN SIGNALS LIGHT UP SIMULTANEOUSLY. Perfect for all your towing adventures, whether it's a weekend getaway with a small camper or a heavy-duty work trailer.
9.1Excellent
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8
MECMOMECMO 7 Way RV Trailer Light Connector Socket 7 Pin Wire Electrical Trailer Adapter Quick Converter with Mounting Bracket, Truck End Quick-Install 7 Prong Universal Pigtail Wiring Harness Vehicle Side
Main highlights- RV 7-Way Trailer Connector: - 7-Blade, RV-style trailer connector for vehicle side. 7-Way connects to towing vehicle's wiring provides full function 7-way connection to power trailer's taillights, brake lights, turn signals, reverse lights, electric trailer brakes and auxiliary power (12V+ wire)
- Quick-install: - Prewired 7-way car end trailer wiring connector pigtail harness with butt connector for 7-wire RV standard color coded wire, could be directly hardwires into truck's existing wiring
- Heavy Duty: - 7-way RV output socket equip with a tight-fitting spring loaded cover to keep terminals clean when not in use; MECMO trailer electrical adapter is made of rust-free black plastic, premium tin-plated copper terminals and equips black sealed tubing wire conduit, provides well-protection, great corrosion-resistance and conductivity
- Full Ready Kit: - Full ready kit easy to install, this vehicle end 7-pin trailer adapter includes mounting bracket, screws, and nuts; All-in-one set design convenience your wiring connection, Mounts within the universal mounting hole for added convenience
- 180 degrees Lip: - 7 pin trailer connector socket opens 180° for easy connections, Voltage ranges: 6-24 Volts; Design for for commercial vehicles / trailers / RVs / trucks / semi-trailers / cars / caravans, etc
9.0Excellent
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9
Oyviny12% OffOyviny 4-Pin to 7-Way Round Blade Trailer Adapter W/Mounting Bracket, 4 Way Flat to 7-Way Blade Reverse Wiring Harness Connector, 16AWG Copper Wire Trailer Light Plug for RV Truck Factory Tow Package
Main highlights- Wide Applications: 4 flat to 7 pin connector can be used with any factory OEM 7-way plug, widely used for marine, RV, ATV, Chevrolet, Ford, Dodge, RAM, Toyota or GMC. 7 inch wire lead between connectors provide flexible installation
- Well Protection: Both 4 way flat adapter and 7 blade trailer connector equip with a dust cover/spring-loaded cover, avoid the adapter damage from the external environment when the trailer adapter kit is not in use
- Easy Installation: 4 flat to 7 blade trailer light adapter come with 1 mounting bracket, 6 screws and 6 nuts, just find a right position to install and tighten the nut, so convenient to connect the trailer wiring adapter to your trailer hitch or bumper
- Durable Construction: 4 pin to 7 pin trailer connector is made from heavy duty plastic; tin-plated brass and 16 gauge copper wire ensure great conductivity; Black wire loom keeps the 4 pin wires for tidy and long lasting use
- 4 Flat to 7 Blade Trailer Adapter: 4 to 7 pin trailer adapter converts vehicle-side 4 way flat to 7 way blade trailer-side socket, making tight connection between vehicle socket and trailer plug; This item customizes the plug-in wiring system to connect the trailer, easy way to transfers the power from the vehicle
8.9Very Good
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10
SizivikiSiziviki Universal 4-Way Flat to 7-Way RV Blade Adapter Kit, 7 Pin Trailer Light Connector and 4 Pin Trailer Wiring Harness with Safety Bracket, Compatible with RV, Truck
Main highlights- WIDE USE: Rest easy knowing 7 way trailer plug is compatible with RV, trailer, truck and more. It's the reliable choice for all your towing needs, ensuring peace of mind on every journey
- UNIVERSAL COMPATIBILITY, DUAL-PURPOSE DESIGN: Transform towing with our 7 pin trailer plug, effortlessly connecting to various trailers. It converts a truck's 4-pin socket into a 7-Way RV blade and a 4-Way flat outlet, offering a range of towing options
- SIMPLIFIED INSTALLATION: Our trailer light adapter includes brackets, screws, and nuts for easy installation. Designed for a straightforward plug-and-play experience, your 7 pin trailer wiring harness stays put without any wobbles, even over rough terrain
- RELIABLE CONNECTION: Our adapter has undergone rigorous testing to ensure a secure connection, with a 19.69-inch 4-way and 7-way connector that clicks into place with confidence. Enjoy a stable connection that efficiently transfers power
- LONG-LASTING USE: Our 7 pin trailer plug tester is made from durable ABS plastic. A protective dust cover and wire loom shield connection points from the elements, ensuring your trailer connector remains reliable through rain, dirt, and corrosion
8.7Very Good
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