Best Red Hound Auto Trailer Connectors in 2026

Vehicle specific replacement trailer wiring harness for vehicles originally equipped with a factory installed tow package - perfect for replacing damaged or missing factory harnesses

Quick and easy plug-in installation - no cutting or splicing necessary; simply plug into the existing vehicle connector, insert the provided fuse and you are ready to start towing

Circuit protected ModuLite module ensures electrical system compatibility between tow vehicle and trailer, and protects the tow vehicle from harmful electrical shorts or incorrect wire connections

EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of these vehicle-trailer connectors. They feature tabs on the top and bottom for a better grip when plugging in or unplugging

RELIABLE CONNECTION. These 4-pin trailer wiring plugs come ready to splice into your existing vehicle and trailer wiring. They have 16-gauge wires and can be used to connect the taillights, brake lights and turn signals

VERSATILE DESIGN. These vehicle-trailer connectors make great replacement 4-flat wiring plugs and sockets. The 4-pin wiring design matches industry-standard 4-way flat connectors and is compatible with a wide variety of trailers

Blowout adapter to easily winterize underground irrigation sprinkler systems, outdoor pipes, water lines, plumbing, homes, cabins, faucets, spigots, garden hoses, sillcocks, and hose bibbs by blow out method.

Its 3/4"-11 NH hose threads easily connects to a standard garden hose. Its 1/4" Industrial Interchange quick-connect plug is the most common quick-connect fitting for air compressors in North America. This new design incorporates fewer joints to reduce the chance of leaks.

The flexible and kink-free Insta-Grip hose (made in USA) allows the adapter to access tight spaces and minimizes stress on pipes and fittings. Pre-assembled length: 20 inches approx. Pressure rating: 250 psi. It is 100% outdoor rated, virtually indestructible, impervious to water and oil. Compatible with standard garden hose threading and air compressor quick-connect commonly found in North America.

Sturdy&Durable: This cable is made of weave steel and wrapped with UV-resistant PU material, anti-corrosion, durable,sturdy, not easy to break.

Flexible Coiled Design: The coiled design can protect breakaway cable from dragging on the ground, extending to 4 feet.

Function: Professionally designed to minimize the possibility of accidents while towing RV, trailer etc.

Make the Wiring Easier - Plug and play, convert the car's 4-pin flat socket to the 7-pin blade round socket for the trailer, synchronize the trailer's signal light, and customize the plug-in wiring system to connect the trailer, which is very convenient and solves the trouble of rewiring every time

High-quality Manufacturing - Using pure copper as the inner core, greatly improves the electrical conductivity. With the high-quality PVC shell, wear-resistant, corrosion-resistant, effectively waterproof and long service life

Provide Extra Protection - With the spring-loaded cover, high dust-proof, to avoid the adapter damage from the external environment when it is not in use

7 PIN TO 4/5 PIN -- Converts 7-way round trailer connector to a 4-way or 5-way, RV-style connector

TRAILER PLUG -- Applicable for utility RV boat camper trailer car carrier

EASY TO USE -- Simple plug-and-play, eliminates the need for cutting or splicing. Hassle free setup, no wiring nor splicing required, Just Plug-N-Play

【Connect Your Wire Harness】: RVGUARD 8 ft long trailer cord with 7-way copper blade molded into a heavy-duty plug, provides a fast and simplified way for wires connection as well as keeping all your trailer wiring in order.

【Easy Splicing】: RVGUARD 7 Color-coded wires coated with durable rubber-like insulation for convenient wiring. The color-coded is suitable for most standard trailer wiring, some differences due to different trailer manufacturers, please check if it is suited for your trailer before ordering.

【Durable Construction and Flexible Connection】: RVGUARD trailer extension cord uses conductive copper wire, soft and rugged PVC housing provides flexibility for you to connect to your car. Also Weatherproof and corrosion-resistant for a long lifespan.

🚔【Easy Wiring 】This 8 Feet long trailer cord with a 7-way copper blade molded into a heavy-duty plug, provides a fast and simplified way for wires connection as well as keeping all your trailer wiring in order.

🚔【Easy splicing】7 Color-coded wires and coated with durable rubber-like insulation for convenient wiring. The color-coded is suitable for most standard trailer wiring, some differences due to different trailer manufacturers, please check if it is ideal for your trailer before.

🚔【Flexible Connection】Adapts conductive copper wire. Soft and rugged PVC housing ensures flexibility when connecting your car.

Easy to Use: Converts 4 pin flat truck connector to a standard 7 pin RV blade socket, connects tail reverse turn signals, synchronizes the trailer's signal light, no splicing of wires needed, plug and play, easy to create custom plug-in wiring systems for towing solutions.

High Quality: The 4 7 trailer adapter uses extremely durable ABS plastic construction instead of PVC, improving the corrosion resistance, oxidation resistance, and high-temperature resistance. The inner core is made of pure copper, which dramatically enhances the conductive performance.

Dust & Water Proof: The trailer light adapter is Well-sealed spring-loaded keeps out dust and water when not in use, and prolongs its use life. Applicable to all towing vehicles that don't require electric brakes, including trailers, semi-trailers, RVs, etc

7PIN TO 4/5 PIN - Converts 7-way round trailer connector to a 4-way or 5-way, RV-style connector.

TRAILER PLUG - Applicable for utility RV boat camper trailer car carrier.

EASY TO USE - Simple plug-and-play, eliminates the need for cutting or splicing. Hassle free setup, no wiring nor splicing required, Just Plug-N-Play.

EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer plug. It features two hooks on either side of the plug for a better grip when plugging in or unplugging trailer wiring

WEATHER-RESISTANT. This trailer wiring plug comes with concealed wire terminals. This helps protect the splice-in connection points for the wires, keeping them safe from dirt, rain, corrosion and other threats

RELIABLE CONNECTION. This 7-pin trailer wiring plug comes ready to splice into your existing trailer wiring. It can be used to connect the taillights, brake lights, reverse lights, turn signals, trailer brakes and auxiliary power

✔ BougeRV trailer plug is made from flameproof ABS junction box, good conductivity copper and solid cord.​​​​​​​ 4 open & 4 close rubber grommets makes the whole junction box weatherproof and corrosion resistant. Junction Box is much easier than managing loose wires.

✔ There are several recognized wiring color code conventions on the 7-way trailer connector. Connected by function, not only by color. PLEASE FOLLOW BougeRV TRAILER WIRING DIAGRAM in DESCRIPTION or MANUAL.

✔ Easy to replace damaged 7-way trailer connector plug, 8 feet length prevents it from being strained during an emergency turn. 7-Way Connects Brake, Running, Reverse, Turn Signals, and Auxiliary Power.

NO TOOLS NEEDED - Easily adapt your 7-WAY RV BLADE vehicle socket to 4-WAY FLAT connector used on lightweight trailers.

NO MORE UGLY DANGLING CONNECTORS - Our 7-way blade to 4-way flat adapter eliminates the need of converter wiring harnesses and is compact enough to be stored in any of the vehicle's storage compartments.

RUGGED NYLON HOUSING - Water, temperature, and shock resistant to provide years of reliable service.

STREAMLINE YOUR TRAILER WIRING - A sturdy plastic housing with seven terminal studs connected to a 7-way blade connector (with 8 feet of cable) provides a secure location to organize your trailer wiring.

SHORTEN UPGRADE AND REPAIR TIME - Quickly add additional equipment and lights, change the power connector, or redo your trailer cable without leaving any wire splices exposed to the elements.

DESIGNED TO FIT YOUR NEEDS - With multiple wire inlets and outlets, this box is perfect for wiring up your trailer, camper, boat, or food truck "your way".

16 Gauge Bonded Wire With 4-Way Flat Plug & Play.Fit Type: Vehicle Specific

Stop/Turn Circuit Capacity Of 7.5 Amps

Solid, Weatherproof, One-Piece Construction

Made of weave steel and wrapped with UV-resistant PU material, durable and scratch-resistant.

Smooth UV coating keep your finger from stabbed

Trailer Emergency Breakaway Cable is designed to minimize the possibility of accidents

4-Way Flat Wiring Connector;

Trailer End;

4 ft. Jacketed Cable;

Made of weave steel and wrapped with UV-resistant PU material, durable and scratch-resistant.

Smooth UV coating keep your finger from stabbed

Trailer Emergency Breakaway Cable is designed to minimize the possibility of accidents w

EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer

STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle

VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Chevrolet Equinox and GMC Terrain (factory tow package required)

EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer.Fit Type: Vehicle Specific

STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle

VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Honda CR V (factory tow package required)

1. 4-pin Trailer Light Wiring Harness, Special Design to Fit For Trailer LED Lights, Tailgate Light Bars and Other Use

2. Premium Insulating Silicone Housing, Worry-free About Wiring Safety, Super Flexible and Durable

3. Environmentally friendly plastic case, waterproof and dustproof, high security

EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer.Fit Type: Universal Fit

STANDARD CONNECTOR. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle

VEHICLE-SPECIFIC. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Ford Explorer

Includes one 48" vehicle end connector and one 12" trailer end connector

Includes 6 splice connectors

Wire functions printed on wire for easy reference

STRAIGHTFORWARD TRAILER LIGHT TESTING - Simply plug the tester inline between the tow vehicle and trailer, turn on the lights and check the easy to read LEDs.

ISOLATE PROBLEMS QUICKLY- By effectively splitting the trailer wiring harness in half, problems can be quickly traced to the tow vehicle side or the trailer side wiring.

NO TOOLS NEEDED - Plug-n-play design means you don't need anything else to effectively test your trailer light harness.

The STRONGEST BEASTS ADAPT: Give your rig the ability to light up any trailer, camper, or accessory

STAYS ON TIGHT: Use your 7-pin dust cover to secure your adapter in place. It WILL NOT fall off

READY FOR ANY SITUATION: Sealed weatherproof construction with rust resistant prongs and cap cover

Simply Your Wire Harness 7-way copper blade molded into a heavy duty plug provides a fast and simplified way for wires connection as well as keeping all your trailer wiring in order

Convenient Trailer Wiring Sturdy junction box with color marked 7-poles convenient for wiring left/right turn light brake signal lamp reverse light tail light etc Junction box is much easier than managing loose wires

Flexible Connection 8ft long cord with soft and durable PVC housing Flexible Connection The length prevents it from being strained during an emergency turn 7-Way Connects Brake Running Reverse Turn Signals and Auxiliary Power

Trailer 4 Pin Extension. 4 pin flat trailer wire extension with a male and female end, great for extending your trailer lights wire hookup to your vehicle, widely used for all types of trailers with 4 way flat plug like boat trailer, utility trailer and horse trailer

Stable Connection. This 4 pin trailer wiring extension is 8ft long; Flat 4 wire trailer extension supplys power for trailer taillights, brake lights and turn signals lights

Well Protected. Both of the 4 way male and female trailer connectors are equips with rubber dust cover, protects the terminals from water and dust when not in use. The whole extension is wrapped by a nylon net tube to make the wires wear-resistant

Heavy Duty Aluminum Casting

"Deadlines" emergency air brake line on trailer

Prevents unauthorized movement

EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer plug. It features tabs on the top and bottom for a better grip when plugging into your vehicle or unplugging

RELIABLE CONNECTION. This 4-pin trailer wiring plug comes ready to splice into your existing trailer wiring. It has 16-gauge wires and can be used to connect the taillights, brake lights and turn signals

VERSATILE DESIGN. This trailer connector makes a great replacement 4-flat trailer wiring connector. The 4-pin wiring design matches industry-standard 4-way flat sockets and can be used on a wide variety of trailers

〖4 Flat to 7 Blade Adapter〗Voltage range: 6-24 Volts, Converts 4 way flat vehicle end to 7 way blade trailer end; Connects tail reverse turn signals, No splicing of wires needed

〖Standard shape, size and capability〗Our plugs and sockets are available in all standard connector formats and are designed to give you a reliable connection every time you plug your trailer into your vehicle.

〖Main Features〗Our connectors are made with quality to be long-lasting and many have bonded wires to keep the connection protected and orderly. Dust caps to keep them well protected from dust, rain and road grime, giving you a solid connection for many miles to come.