20 Best 7 Wire Truck Plug Diagram [2025]

Are you looking for the best 7 Wire Truck Plug Diagram? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 7 Wire Truck Plug Diagram.

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1 ONLINE LED STORE 8ft 7-Way Trailer Plug Cord Wiring Harness [7-Pin Trailer Wire Cable] [Brake &... ONLINE LED STORE 8ft 7-Way Trailer Plug Cord Wiring Harness [7-Pin Trailer Wire Cable] [Brake &...
2 POLLAK 12-706 Plastic Blade Style 7-Way Plug POLLAK 12-706 Plastic Blade Style 7-Way Plug
3 MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box - 8 Feet, Weatherproof MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box - 8 Feet, Weatherproof
4 CURT 57672 Dual-Output 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter , Black CURT 57672 Dual-Output 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter , Black
5 MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with Double Prongs Connector - 8 Feet,... MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with Double Prongs Connector - 8 Feet,...
6 Hopkins 20022 Endurance 7 Blade 3' Vehicle Side Jacketed Cable Hopkins 20022 Endurance 7 Blade 3' Vehicle Side Jacketed Cable
7 CURT 56229 Replacement USCAR Connector Wiring Harness, 24-Inch Wires, 7 Pin Trailer Wiring , Black CURT 56229 Replacement USCAR Connector Wiring Harness, 24-Inch Wires, 7 Pin Trailer Wiring , Black
8 Nilight Heavy Duty 7 Way Inline Trailer Plug with 7 Gang Junction Box - 8 Feet, Trailer Connector... Nilight Heavy Duty 7 Way Inline Trailer Plug with 7 Gang Junction Box - 8 Feet, Trailer Connector...
9 MICTUNING Heavy Duty 7 Way Trailer Cord Plug Connector with Transparent Cover 7 Gang Junction Box -... MICTUNING Heavy Duty 7 Way Trailer Cord Plug Connector with Transparent Cover 7 Gang Junction Box...
10 Hopkins Towing Solutions Endurance 40950 Multi-Tow 7 Blade and 4 Flat Vehicle Wiring Kit, Black Hopkins Towing Solutions Endurance 40950 Multi-Tow 7 Blade and 4 Flat Vehicle Wiring Kit, Black
11 Spurtar 7 Pin Trailer Plug 7 Way Round RV Style Flat Blade Trailer Light Wiring Harness Trailer End... Spurtar 7 Pin Trailer Plug 7 Way Round RV Style Flat Blade Trailer Light Wiring Harness Trailer...
12 CARROFIX 7 Way Trailer Light Connector Socket 7 Wire Harness Electrical Quick Converter with... CARROFIX 7 Way Trailer Light Connector Socket 7 Wire Harness Electrical Quick Converter with...
13 Nilight - 50048R 7 Way Electrical Trailer Junction Box 7 Gang Trailer Wire Connector Junction Box... Nilight - 50048R 7 Way Electrical Trailer Junction Box 7 Gang Trailer Wire Connector Junction Box...
14 Kohree 4 Way Flat to 7 Way Round Blade Trailer Adapter Plug End 4 pin to 7 pin Electrical Connector... Kohree 4 Way Flat to 7 Way Round Blade Trailer Adapter Plug End 4 pin to 7 pin Electrical...
15 Poweka 7 Way RV Trailer Light Connector Socket 7 Wire Harness Electrical Quick Converter Adapter... Poweka 7 Way RV Trailer Light Connector Socket 7 Wire Harness Electrical Quick Converter Adapter...
16 Kohree 7 Way Trailer Cord, Heavy Duty 7 Way Trailer Plug Inline Cord Wire Harness Cable Double... Kohree 7 Way Trailer Cord, Heavy Duty 7 Way Trailer Plug Inline Cord Wire Harness Cable Double...
17 NEW SUN 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box Trailer Plug Wire Connector,... NEW SUN 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box Trailer Plug Wire Connector,...
18 CURT 55415 Replacement 7-Way RV Blade Connector, Factory Tow Package and USCAR Socket Required ,... CURT 55415 Replacement 7-Way RV Blade Connector, Factory Tow Package and USCAR Socket Required ,...
Bestseller No. 1
ONLINE LED STORE 8ft 7-Way Trailer Plug Cord Wiring Harness [7-Pin Trailer Wire Cable] [Brake &...
  • PAINLESS REPLACEMENT - Easily upgrade the corroded old 7-way plug on your trailer, RV, food truck, or tow truck.
  • EXCEPTIONAL VERSATILITY - Perfect for trailers with brakes, reverse lights, and any other auxiliary power needs such as charging trailer battery,...
  • EASY TO USE - Cable has been stripped and color coded to simplify the installation. The locking plug end features finger lugs for easy removal.
  • SAFE AND SECURE CONNECTION - No more dangerous flickering lights or malfunctioning equipment. 10-14 AWG, high quality, double prong, copper terminals...
  • LIFE PROOF - Commercial grade, kink free PVC sheathing is waterproof and corrosion resistant for years of reliable service.
Bestseller No. 2
POLLAK 12-706 Plastic Blade Style 7-Way Plug
  • Fit type: Universal
  • Made in China
  • Package Dimensions : 3.75 L x 1.75 H x 3.0 W (inches)
  • Package Weight : 0.1 pounds
Bestseller No. 3
MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box - 8 Feet, Weatherproof
  • TIDY 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...
  • CONVENIENT TRAILER WIRING - sturdy junction box with color marked 7-poles that can be easily identified, gives you more convenience for wiring...
  • EXCELLENT CONSTRUCTION - adopted flameproof ABS junction box and good conductivity copper with solid cord, stronger and rugged, perfect for RVs,...
  • FLEXIBLE CONNECTION - 8FT long cord with soft and durable PVC housing that offers you plenty of flexibility to wire it from the front to the rear of...
  • BEST SEALING PERFORMANCE - 4 open & 4 close rubber fitted grommets for option based on your wiring needs, making the whole junction box waterproof,...
Bestseller No. 4
CURT 57672 Dual-Output 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter , Black
  • VERSATILE DESIGN. This dual-output trailer wiring adapter makes it easy to tow different trailers with your vehicle, equipping it with a standard...
  • WEATHER-RESISTANT. This trailer wiring harness adapter comes with dust covers for the 4-pin and 7-pin wiring sockets to protect the terminals from...
  • STANDARD CONNECTION. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, brake lights,...
  • EASY TO INSTALL. This dual-output 4-pin to 7-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with minimal splicing...
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from durable black plastic...
Bestseller No. 5
MICTUNING Heavy Duty 7 Way Plug Inline Trailer Cord with Double Prongs Connector - 8 Feet,...
  • TIDY 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...
  • CONVENIENT TRAILER WIRING: 7 colors coded wires and coated with durable rubber-like insulation, ready to be installed into a junction box
  • EXCELLENT CONSTRUCTION: use premium double prong to replace poor single prong, adopt good conductivity copper with solid cord, stronger and rugged,...
  • FLEXIBLE CONNECTION: 8ft long cord with soft and durable PVC housing that offers you plenty of flexibility to wire it from the front to the rear of...
  • BEST SEALING PERFORMANCE: the main cable is molded into the plug and all fits nicely together, with a good seal making it weather-proof and corrosion...
SaleBestseller No. 6
Hopkins 20022 Endurance 7 Blade 3' Vehicle Side Jacketed Cable
  • 3-foot cable mounts to vehicle bumper
  • Jacketed cable provides protection and increased weatherproofing
  • Lid opens 180 degrees
  • Provides the electrical outlet necessary for powering trailer lights and brakes
Bestseller No. 7
CURT 56229 Replacement USCAR Connector Wiring Harness, 24-Inch Wires, 7 Pin Trailer Wiring , Black
  • Replaces damaged or missing USCAR vehicle harnesses
  • Includes 24" color-coded, bonded wires for easy installation
  • Made in USA
  • Retrofits weatherproof USCAR-type 7-way to vehicles not equipped by using CURT part numbers 55415, 55515, 55664, 55774, 56415, 56515 or 57101
SaleBestseller No. 8
Nilight Heavy Duty 7 Way Inline Trailer Plug with 7 Gang Junction Box - 8 Feet, Trailer Connector...
  • 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...
  • Convenient Trailer Wiring Sturdy junction box with color marked 7-poles convenient for wiring left/right turn light brake signal lamp reverse light...
  • Flexible Connection 8ft long cord with soft and durable PVC housing Flexible Connection The length prevents it from being strained during an emergency...
  • Good Sealing Performance Four open and four close sealed rubber gaskets are provided to make the entire junction box waterproof dustproof and...
  • Package Included 1x 7-Way trailer plug with junction box 4 x open gaskets 4 x Close gaskets
Bestseller No. 9
MICTUNING Heavy Duty 7 Way Trailer Cord Plug Connector with Transparent Cover 7 Gang Junction Box -...
  • MICTUNING trailer plug is designed with transparent surface for better wire observation. Not need to open the box and you can monitor the operation of...
  • 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...
  • Sturdy junction box with color marked 7-poles that can be easily identified, gives you more convenience for wiring left/right turn light, brake signal...
  • Excellent construction. Adopted flameproof ABS junction box and good conductivity copper with solid cord, stronger and rugged, perfect for RVs,...
  • Better sealing performance, 4 open & 4 close rubber fitted grommets for option based on your wiring needs, making the whole junction box waterproof,...
SaleBestseller No. 10
Hopkins Towing Solutions Endurance 40950 Multi-Tow 7 Blade and 4 Flat Vehicle Wiring Kit, Black
  • Utilizes OEM connectors create an exact fit and maximum weatherproofing
  • Multi-Tow feature provides multiple towing options from single connector
  • Powers tail lights and turn signals on towed vehicle
  • Weathproof lid opens 180 degrees and oversized hinge offers ultimate durability and
  • Mounting bracket and accessories included
SaleBestseller No. 11
Spurtar 7 Pin Trailer Plug 7 Way Round RV Style Flat Blade Trailer Light Wiring Harness Trailer End...
  • Usage: Spurtar Industry standard 7 way rv blade trailer connector plug commonly used on RV camper trailers for towing RV travel trailers
  • Good Connection: Brass terminals for better conductivity and screw strain relief clamp which keeps trailer wire from pulling out of connector
  • Safe Grip: Userfriendly & ergonomic design with safety latch to ensure safe and strong grip when plugging in or unplugging trailer wiring
  • Versatile: 7-way RV blade connector is a great replacement and interchangeable with any trailer-side 7-way RV connectors
  • RELIABLE: Spurtar 7-pin trailer wiring plug comes ready to splice into your existing trailer wiring. It can be used to connect the taillights, brake...
SaleBestseller No. 12
CARROFIX 7 Way Trailer Light Connector Socket 7 Wire Harness Electrical Quick Converter with...
  • Adapter provides a 7-way blade-style connection in the vehicle side to power the trailer's signal lights
  • 7 Wire harness and features a spring loaded lid that keeps the contact points clean when not in use
  • All of the connectors are already attached to the ends of the wiring, just splices into existing wiring
  • Simple installation, comes with the 7-way connector, mounting bracket and necessary hardware
  • Guaranteed 5-star experience - If you aren't 100% satisfied for any reason, we'll refund your money
SaleBestseller No. 13
Nilight - 50048R 7 Way Electrical Trailer Junction Box 7 Gang Trailer Wire Connector Junction Box...
  • TIDY YOUR TRAILER WIRING: A sturdy 7-Pore Trailer Junction Box with 7 terminal studs provides safe and secure trailer wiring install with markings to...
  • EFFICIENT DESIGN: Quickly adds additional equipment and lights, change the power connector, or redo your trailer cable without leaving any wire...
  • TIGHTLY SEALED PROTECTION: Durable plastic housing coupled with rubber grommets provides superb protection against nature's bad days
  • UPGRADE TRAILER CONNECTION: Quickly adds extra lights and accessories. Upgrade your old trailer wiring, makes re-wiring, troubleshooting and fixing...
  • PACKAGE INCLUDES: 1 junction box with a set of Fasteners + color card + pack of rubber boot grommets
Bestseller No. 14
Kohree 4 Way Flat to 7 Way Round Blade Trailer Adapter Plug End 4 pin to 7 pin Electrical Connector...
  • 🚚【Tight-Fitted Towing Adapter】 This adapter converts the 4-way flat socket to the 7-way round type socket, connecting tail light, reverse...
  • 🚚【Hassle-Free Setup】Standard round 7-way flat blade connector easily and tightly snaps into trailer's existing socket and holds without any...
  • 🚚【Ultra Durability】Kohree trailer connector is made from heavy plastic for lightweight and durability. Brass terminals and tin contact offer...
  • 🚚【WIdely Application】Kohree Heavy Duty 4 way to 7 way adapter, offers a trusted power supply for towing, well lights up running lights, tail...
  • 🚚【Universe Plug】This 4 way trailer adapter plug works fine with any factory OEM 7-way plug, suitable for Boat, RV, ATV, Chevrolet, Ford, Dodge,...
Bestseller No. 15
Poweka 7 Way RV Trailer Light Connector Socket 7 Wire Harness Electrical Quick Converter Adapter...
  • 7-Way Connects Tail Brake Reverse Turn Signals Brakes,voltage range: 6-24 Volts.
  • This product is used to install or replace 7-way RV vehicle socket. commonly Used with T-Connectors or Tail Lamp Converters. Equipped wiah-Pressed...
  • Application: This 7-pin trailer wiring socket comes ready to splice into your existing vehicle wiring It can be used to connect the taillights, brake...
  • Ultra Durability: made from heavy plastic for lightweight and durability. Brass terminals and tin contact offer better electrical conductivity....
  • Easy to install, all necessary mounting bracket and screws+nuts included, allows the user to create custom plug-in wiring systems for any towing...
Bestseller No. 16
Kohree 7 Way Trailer Cord, Heavy Duty 7 Way Trailer Plug Inline Cord Wire Harness Cable Double...
  • 🚔【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...
  • 🚔【Easy splicing】7 Color-coded wires and coated with durable rubber-like insulation for convenient wiring. The color-coded is suitable for most...
  • 🚔【Flexible Connection】Adapts conductive copper wire. Soft and rugged PVC housing ensures flexibility when connecting your car.
  • 🚔【Widely Applications】Perfect for connecting tail, brake, reverse, turn signals and auxiliary power of your trailers, RVs, campers, caravans,...
  • 🚔【Durable Construction】This heavy-duty 7 Way trailer plug is made of weatherproof and durable materials, which ensure a longer lifespan. BTW,...
Bestseller No. 17
NEW SUN 7 Way Plug Inline Trailer Cord with 7 Gang Junction Box Trailer Plug Wire Connector,...
  • ♄7-Way blade RV-style trailer connector is insulated and molded to protect terminals and wires
  • ♄Heavy duty cord and plug with 7 Gang junction box, 8ft long harness makes install easy, no more cutting and splicing
  • ♄Good conductivity copper with solid cord,stronger and rugged. Molded plug is made of a heavy duty material it will not crack or split the first...
  • ♄Thickening Cable Jacket. It won't chafe through after rubbing on the chain or frame for a few hundred miles, Weatherproof and corrosion resistant,...
  • ♄Heavy Gauge ABS Junction Box. Lid seals water tight. All the terminals inside are very secure in the box and easy to apply a fair amount of torque...
SaleBestseller No. 18
CURT 55415 Replacement 7-Way RV Blade Connector, Factory Tow Package and USCAR Socket Required ,...
  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness plugs into a USCAR connection on your vehicle and equips it with a standard RV...
  • STANDARD CONNECTOR. The 7-way RV blade trailer wiring can be used to connect trailer taillights, brake lights, turn signals, electric trailer brakes,...
  • USCAR-SPECIFIC. This USCAR wiring harness is designed for Ford, GM and Nissan vehicles with a USCAR socket, ensuring the easiest possible installation...
  • PROTECTED. This 7-way RV blade socket is equipped with a spring-loaded dust cover that keeps the connection points dry and protected when not in use,...
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of the 7-pin vehicle wiring socket is made from durable black...

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FAQ:

Q: What color wire do I need for 7 way plug wiring?

A: 7 Way Plug Wiring Diagram Standard Wiring* Post Purpose Wire Color TM Park Light Green (+) Battery Feed Black RT Right Turn/Brake Light Brown LT Left Turn/Brake Light Red S Trailer Electric Brakes Blue GD Ground White A Accessory Yellow This is the most common (Standard) wiring scheme for RV Plugs and the one used by major auto manufacturers today.

Q: How to wire a 7-pin trailer wiring diagram?

A: The following step in the 7-pin trailer wiring diagram with brakes and also an accelerator control is to link the red and also white wires to their equivalent ports on the left side of the engine. Next off, you will need to link the green cable to the eco-friendly connector on the drivers’ side of the steering column.

Q: What size plug do I need for a trailer light?

A: In some cases and more often in europe the trailer light will be connected using a 13 pin plug and socket. Best 7 Pin Trailer Wiring Diagram Best 7 Pin Trailer Plug Trailer Wiring Diagram Trailer Light Wiring Flatbed Trailer

Q: What is a 7-way trailer plug?

A: Most new vehicles equipped with a tow package have connectors. Trailers with electric brakes need them too. The 7-Way Trailer Plug is around 2″ diameter connector that allows an additional pin for an auxiliary 12-volt power or backup lights.