Best Autosonic in 2026

The AutoSonic 7 way plug trailer cord is super heavy-duty construction, it features a classic RV style 7 pole trailer connector which is insulated and molded to provide the ultimate protection for the terminals and wires

We hold the highest bar in the industry, the AutoSonic 7 way plug trailer cord is made of durable and weather-resistant materials with second-to-none craftsmanship which is going to ensure that this product is going to last for years of trouble-free operation

The pre-wired junction box with 7-way connector plug makes it much easier for wire connections as well as keeping all your wires in order and protected, eliminates a lot of the splicing and eases installations, not to mention it also makes the whole diagnostics much simple

【PREMIUM QUALITY】: Thick copper barrel ensures strong secure crimping every time, providing minimal voltage drop, high current flow, and less heat. These will prevent short circuits and problematic wiring that inferior connectors are known for

【DURABILITY】: Each butt, ring and fork terminal features a thick tinned copper barrel that resists corrosion to hold the wire tight when crimped. The barrel is created from one piece of copper that eliminates the problem of the barrel opening. Your wire will never slip out of the connector

【WATERPROOF】: Insulation tubing has unique dual-walled design. High quality 3:1 shrinkage tubing has a heat-activated sealant lining to provide a 360-degree secure seal. It's flame-retardant, waterproof, and can be used underground

♥ PREMIUM SOLDER SEAL RING: Tubing reduces in size, the enough solder will melt and flow through the stripped wires, ensure a long lasting connection for your application.

♥ BETTER WATERPROOF SOLUTIONS: Double wall design, Hot Melt Adhesive inside ensures wires strongly connected and prevent wires slipping from the terminal; Polyolefin outside tubing provides insulation and improves pullout strength.

♥ ABRASION RESISTANCE HEAT SHRINKABLE TUBE: Premium tube materials are specially designed to be used in harsh environments. Protect the wires and cables from abrasion, cutting, scuffing and low impact situations.

✔️ EASY AND FAST PROCESS: All-in-one step solder and seal process. No need for crimp tools and soldering machine. Timer and mess saver

✔️ WATERPROOF AND INSULATION: Dual-walled design - Outside Polyolefin tubing provides insulation and improves pullout strength; Hot Melt Adhesive & Solder inside ensures wires tightly connected and avoids wires slipping out of the terminal

✔️ STAY ORGANIZED: Our connectors come within a storage box, easy to store and carry. Color-coded tubing makes it easy to identify the right size of the connector for every application. The connector assortment includes white (AWG 26 – 24), red (AWG 22 – 18), blue (AWG 16 – 14) and yellow (AWG 12 – 10) solder seal connectors that can be used on wire AWG from 26 to 10.

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 TO IDENTIFY- Easier to choose the correct heat shrink connector, different color coded tubing with wire gauge imprint provides easy identification.

WATERPROOF- Polyolefin tubing on the outside and hot melt adhesive inside provides excellent waterproof property. Polyolefin tubing reduces in size and adhesive flows inside the insulation when heating.

HIGH QUALITY- Thick barrel ensures strong secure crimping every time to prevent wire failure, increase current flow, decrease voltage drop, and reduce equipment downtime. Your wire will never slip out of the connector.

Connect any combination of solid, stranded, and flexible copper wires faster and more reliably

Minimize space consumption in the junction box by 40% compared to 222 Series

Visually inspect for proper strip length and complete wire insertion through its transparent housing

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.

🚔【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.

【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.

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 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

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

🚛【Easy Wiring Trailer Plug】7-way copper blade with 8 Ft long trailer cord 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 with Junction Box】Solid trailer junction box with 7 color-coded wires for convenient wiring. You can easily identify the signal lamp, reverse light, tail light, etc.

🚛【7 Color-coded Wires】The 7 way trailer cord wires are coated with durable rubber-like insulation for convenient wiring. It is suitable for most standard trailer wiring. Please check is it suitable for your trailer before as there is some differences among different manufacturers.

Super Quality: Shackle Hitch Receiver Set Was Made of High-Strength Drop Forged Steel, The Straight-line Pull of Up to 13,000LBS and 45,000LBS of Max Breaking Strength to Keep It Safety & Stability

Fitted Suite: 2" Shackle Hitch Receiver, Anti-Theft 5/8" Trailer Hitch Lock Pin, 3/4" D-ring Shackle with Shackle Isolator & 4Pcs Washers kits, Protect The Bumper From Scratches and Prevent Rattling and Stolen

Multiple Safeguard: Hitch Receiver for Prevent Rust and Corrosion By Galvanized & Powder Coated Plating and Withstands Harsh Weather Conditions

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

Application: Universal for Trucks, trailers under 80", tractors, semi-trailer, Dump Truck, bus, boat, camper, special vehicle etc. Super bright LED lights provide maximum visibility and safety. Fully operable in inclement weather, these heavy duty trailer lights are tough and durable for the long term.

Left and Right LED trailer tail Lights have 6 functions in common: Stop/Turn/Tail/Rear reflector/side reflector/side marker light. 1 additional function for left trailer light: license plate light. The trailer led lights are suitable for under 80 Inch width towing vehicle, like boat, trailer, truck, snowmobile etc.

Excellent waterproof/Submersible lights for trailer. Sonic Welding Whole Sealing Technology ensures sealing solidity of the LED tail lights. Further more, every possible gap is sealed well with glue, such as wires entrance holes and edge of the lens. 18 gauge pure copper wires ensure trailer lights LED do good job underwater.

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.

✔ 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.

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".

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

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

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

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

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.

JST connectors dimension: each cable wire length is approx. 10 cm/ 3.9 inches, the cable wire diameter is 1.25 mm, micro size can fit your needs

Wire core: 7 section 0.11 mm zinc copper, external diameter is 0.9 mm, tail zinc size is 3 mm, standard size, suitable for common uses

Match well with: 26 AWG 1.25 mm JST 2 pin micro male connector match well with female connector, easy to install and use

★【Real Thick 18AWG】- Real 18AWG vs Common 22AWG, real 18AWG are bigger wire than other 22AWG pigtails, as it has heavy gauge with 43 pcs 0.14 mm 100% copper strands inside one cable, total 86 pcs 0.14 mm copper strands inside the two Red / Black cables. This makes the difference when using with bigger power supplies, and allows them to be used for higher current devices, they should be good to 5A or even a touch more with real 18AWG.

★【Safe & Rapid Transmission】- Heavy-duty quality with 43 x 0.14 mm 100% copper strands brings the reliable, secure connection and rapid transmission. 18AWG DC Power Pigtail Cable provides a more safer DIY solution for DC power connectivity, work with a power adapter or a power supply box.

★【Easy Installation】- Easy to weld and install, as the ends of the DC power pigtail cables are pre-tinned making them super easy to solder. Also features two wires on the other Red Black wire jackets indicate polarity. They are fairly long too, 11" total, 9.5" of wire.

Length:1M , 2pcs extension cable with 4pcs 4pin connector free.

Extension Connecting Cable for 5050 3528 SMD RGB LED Strip Lights

A perfect solution for connecting led strip with controller or strip to strip connection