Contact Us

trailer plug 4 pin round custom support

Just fill in the form below, click submit, you will get the price list, and we will contact you within one working day. Please also feel free to contact us via email or phone. (* is required).

  • Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring ...

    A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring …

    Get Price
  • Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket ...

    A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector, # PK11402, that will accept up to 12 gauge wire. This is a trailer end plug. The vehicle side is the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404.

    Get Price
  • 7- and 4-Pole Trailer Connector Socket w Mounting

    It took me 30 seconds to plug the Silverado's OEM 7-pin round connector (located inside the blank insert) into the #40975 Wiring Kit and snap it into the cutout. Then I tested the flat 4-pin outlet of the #40975 with a 5 dollar 4-pin LED tester from West Marine, and all …

    Get Price
  • Amazon.com: 4 pin flat trailer plug

    SUZCO 25 Foot 4 Wire 4-Flat Trailer Light Wiring Harness Extension Kit, 4-Way Plug 4 Pin Male & Female Extension Connector & Wishbone-Style with 18 Gauge White Ground Wire with SAE J1128. 4.6 out of 5 stars. 1,955.

    Get Price
  • RoadMaster 4-Wire Connector - e trailer

    Today, we're going to take a look at the Roadmaster 4-wire vehicle end trailer connector. Now, this connector will install in the vehicle that's being towed to allow you to plug in a 4-pin plug from the tow vehicle. This replacement socket will fit the Roadmaster 4-wire …

    Get Price
  • Buy Trailer Plugs, Connectors, and Receptacles

    Trailer plugs, connectors, and receptacles. Relevance Name, A to Z Name, Z to A Price, low to high Price, high to low. Showing 1-84 of 84 item (s) Quick view. Quick view. Price. $12.71. AEC-7723309. Ameriline - Grommet Nut for 12-Pin Female NATO Plug.

    Get Price
  • Genuine Toyota Towing Wire Harnesses and Adapters

    For the smaller towing jobs, this easy-to-install adapter converts a 7-pin round to a 4-pin flat connector.Designed to work specifically with the Toyota Towing wire harness Allows a standard four-way flat-wired trailer to be connected without the need to rewire the trailer or purchase additional harnesses Provides higher level of towing flexibility while protecting vehicle's …

    Get Price
  • Guide to Trailer Plugs: Towing and Charging Solutions ...

    2018-2-15u2002·u20027 Pin Trailer Plugs. Next up is the seven pin trailer plug, which comes in flat or round. In the round, you can get a big size, or a small size. Usually the big is used on trucks or heavy machinery. These vehicles have a lot more lights and require more power to …

    Get Price
  • RoadMaster 4-Wire Connector - Trailer End Roadmaster ...

    Create your own cord or replace the damaged ends on your RoadMaster 4-wire straight and Flexo-Coil electrical cords with this 4-pole, female connector. Lowest Prices for the best wiring from Roadmaster. RoadMaster 4-Wire Connector - Trailer End part number RM-910030-2 can be ordered online at etrailer.com or call 800-298-1624 for expert service.

    Get Price
  • 7- and 4-Pole Trailer Connector Socket w Mounting Bracket ...

    It took me 30 seconds to plug the Silverado's OEM 7-pin round connector (located inside the blank insert) into the #40975 Wiring Kit and snap it into the cutout. Then I tested the flat 4-pin outlet of the #40975 with a 5 dollar 4-pin LED tester from West Marine, and …

    Get Price
  • Trailer Connectors - Del City

    A trailer adapter is an innovative design meant to adapt 4, 6, or 7-way trailer connectors. The trailer plug adapters come in one and two-piece molded designs and are created to interchange with standard molded connectors. Del City offers adapters that convert 7-way blade style trailer plugs as well as 4, 5, and 6-way trailer plugs. Models that ...

    Get Price
  • Trailer Hitch Wiring & Electrical

    2020-9-3u2002·u2002There are a number of standardized trailer connectors, such as 4-pin flat/round, 5-pin flat, 6-pin square/round, and 7-pin round. The simplest 4-pin system is used for small trailers, and has one ground pin, one pin each for left and right turn signals and brake lights, and one for the running lights. 5-pin flat connectors add a wire for the ...

    Get Price
  • RoadMaster 4-Wire Connector - Trailer End Roadmaster ...

    Create your own cord or replace the damaged ends on your RoadMaster 4-wire straight and Flexo-Coil electrical cords with this 4-pole, female connector. Lowest Prices for the best wiring from Roadmaster. RoadMaster 4-Wire Connector - Trailer End part number RM-910030-2 can be ordered online at etrailer.com or call 800-298-1624 for expert service.

    Get Price
  • Trailer Hitch - Trailer Plug

    2021-11-30u2002·u2002So when looking for a trailer hitch, a trailer plug, or a trailer adapter, you can rely on Repco to provide you with a product range that follows standards plus an extensive line of options coming from the best brands. You can find round and flat sockets, flat to large adapters, standard, adjustable and removable ball mounts, and a lot more.

    Get Price
  • Harnesses For Trailers

    Technology. Peterson Maxi-Seal Technology has been around for more than 25 years, supplying customers in light, medium, and heavy-duty trailer industries with top-quality sealed wiring harness systems that are engineered and manufactured to custom specifications and delivered on time.

    Get Price
  • Trailer Wiring, Plugs and Sockets at Trailer Parts Superstore

    Trailer Wiring, Plugs and Sockets. Trailer wiring and harness plugs are available in a variety of sizes and configurations. The most basic of designs is the color coded 4-WIRE system which uses a brown wire for tail, license, and side marker lights, yellow wire for left hand stop and turn, green wire for right hand stop and turn, and white wire for system ground.

    Get Price
  • JKD Products

    JKD Products has been providing custom wiring needs since 2001. We are a family owned business specializing in custom trailer wiring harnesses. We have been providing custom wiring harnesses for over 30 years. Our team of experts has been able to perfect wiring harnesses for single axle, gooseneck, dump trailers, bumper pull, and horse trailers.

    Get Price
  • Trailer Wiring Diagram and Installation Help - Towing 101

    Complete with a color coded trailer wiring diagram for each plug type, including a 7 pin trailer wiring diagram, this guide walks through various trailer wiring installation solution, including custom wiring, splice-in wiring and replacement wiring. If your vehicle is not equipped with a working trailer wiring harness, there are a number of different solutions to provide the perfect fit for ...

    Get Price
  • EZ Connector magnetic waterproof sealed reliable ...

    'At Maltby & Co., safety is #1, from our employees to our equipment. After installing EZ Connector's trailer plug system to our fleet of trucks and trailers, we have eliminated the number one sourse of electrical problems between the truck and trailer, assuring that lights and electric brakes on our trailers are functioning to full potential with no chance of weather-related failure.

    Get Price
  • Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring ...

    A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector, # PK11402, that will accept up to 12 gauge wire. This is a trailer end plug. The vehicle side is the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404.

    Get Price
  • Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket ...

    A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector, # PK11402, that will accept up to 12 gauge wire. This is a trailer end plug. The vehicle side is the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404.

    Get Price
  • 7- and 4-Pole Trailer Connector Socket w Mounting

    It took me 30 seconds to plug the Silverado's OEM 7-pin round connector (located inside the blank insert) into the #40975 Wiring Kit and snap it into the cutout. Then I tested the flat 4-pin outlet of the #40975 with a 5 dollar 4-pin LED tester from West Marine, and all …

    Get Price
  • Amazon.com: 4 pin flat trailer plug

    SUZCO 25 Foot 4 Wire 4-Flat Trailer Light Wiring Harness Extension Kit, 4-Way Plug 4 Pin Male & Female Extension Connector & Wishbone-Style with 18 Gauge White Ground Wire with SAE J1128. 4.6 out of 5 stars. 1,955.

    Get Price
  • RoadMaster 4-Wire Connector - e trailer

    Today, we're going to take a look at the Roadmaster 4-wire vehicle end trailer connector. Now, this connector will install in the vehicle that's being towed to allow you to plug in a 4-pin plug from the tow vehicle. This replacement socket will fit the Roadmaster 4-wire …

    Get Price
  • Buy Trailer Plugs, Connectors, and Receptacles

    Trailer plugs, connectors, and receptacles. Relevance Name, A to Z Name, Z to A Price, low to high Price, high to low. Showing 1-84 of 84 item (s) Quick view. Quick view. Price. $12.71. AEC-7723309. Ameriline - Grommet Nut for 12-Pin Female NATO Plug.

    Get Price
  • Genuine Toyota Towing Wire Harnesses and Adapters

    For the smaller towing jobs, this easy-to-install adapter converts a 7-pin round to a 4-pin flat connector.Designed to work specifically with the Toyota Towing wire harness Allows a standard four-way flat-wired trailer to be connected without the need to rewire the trailer or purchase additional harnesses Provides higher level of towing flexibility while protecting vehicle's …

    Get Price
  • Guide to Trailer Plugs: Towing and Charging Solutions ...

    2018-2-15u2002·u20027 Pin Trailer Plugs. Next up is the seven pin trailer plug, which comes in flat or round. In the round, you can get a big size, or a small size. Usually the big is used on trucks or heavy machinery. These vehicles have a lot more lights and require more power to …

    Get Price
  • RoadMaster 4-Wire Connector - Trailer End Roadmaster ...

    Create your own cord or replace the damaged ends on your RoadMaster 4-wire straight and Flexo-Coil electrical cords with this 4-pole, female connector. Lowest Prices for the best wiring from Roadmaster. RoadMaster 4-Wire Connector - Trailer End part number RM-910030-2 can be ordered online at etrailer.com or call 800-298-1624 for expert service.

    Get Price
  • Ford F-350 Hitch Wiring

    2021-11-27u2002·u2002A vehicle supplies electric power to the trailer, covering all of its electric needs starting from exterior lights to the accessories that take power from the 12-volt source. There are several types of trailer connectors, from the most basic 4-pin flat or round designs, typically utilized for small trailers, to 7-pin trailer connectors with RV blade style or round pins. 7-pin …

    Get Price
  • Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring ...

    A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector, # PK11402, that will accept up to 12 gauge wire. This is a trailer end plug. The vehicle side is the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404.

    Get Price
  • Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket ...

    A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector, # PK11402, that will accept up to 12 gauge wire. This is a trailer end plug. The vehicle side is the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404.

    Get Price
  • 7- and 4-Pole Trailer Connector Socket w Mounting Bracket ...

    It took me 30 seconds to plug the Silverado's OEM 7-pin round connector (located inside the blank insert) into the #40975 Wiring Kit and snap it into the cutout. Then I tested the flat 4-pin outlet of the #40975 with a 5 dollar 4-pin LED tester from West Marine, and …

    Get Price
  • Amazon.com: 4 pin flat trailer plug

    SUZCO 25 Foot 4 Wire 4-Flat Trailer Light Wiring Harness Extension Kit, 4-Way Plug 4 Pin Male & Female Extension Connector & Wishbone-Style with 18 Gauge White Ground Wire with SAE J1128. 4.6 out of 5 stars. 1,955.

    Get Price
  • RoadMaster 4-Wire Connector - e trailer

    Today, we're going to take a look at the Roadmaster 4-wire vehicle end trailer connector. Now, this connector will install in the vehicle that's being towed to allow you to plug in a 4-pin plug from the tow vehicle. This replacement socket will fit the Roadmaster 4-wire …

    Get Price
  • Buy Trailer Plugs, Connectors, and Receptacles

    Trailer plugs, connectors, and receptacles. Relevance Name, A to Z Name, Z to A Price, low to high Price, high to low. Showing 1-84 of 84 item (s) Quick view. Quick view. Price. $12.71. AEC-7723309. Ameriline - Grommet Nut for 12-Pin Female NATO Plug.

    Get Price
  • Genuine Toyota Towing Wire Harnesses and Adapters

    For the smaller towing jobs, this easy-to-install adapter converts a 7-pin round to a 4-pin flat connector.Designed to work specifically with the Toyota Towing wire harness Allows a standard four-way flat-wired trailer to be connected without the need to rewire the trailer or purchase additional harnesses Provides higher level of towing flexibility while protecting vehicle's …

    Get Price
  • Guide to Trailer Plugs: Towing and Charging Solutions ...

    2018-2-15u2002·u20027 Pin Trailer Plugs. Next up is the seven pin trailer plug, which comes in flat or round. In the round, you can get a big size, or a small size. Usually the big is used on trucks or heavy machinery. These vehicles have a lot more lights and require …

    Get Price
  • RoadMaster 4-Wire Connector - Trailer End Roadmaster ...

    Create your own cord or replace the damaged ends on your RoadMaster 4-wire straight and Flexo-Coil electrical cords with this 4-pole, female connector. Lowest Prices for the best wiring from Roadmaster. RoadMaster 4-Wire Connector - Trailer End part number RM-910030-2 can be ordered online at etrailer.com or call 800-298-1624 for expert service.

    Get Price
  • Ford F-350 Hitch Wiring

    2021-11-27u2002·u2002A vehicle supplies electric power to the trailer, covering all of its electric needs starting from exterior lights to the accessories that take power from the 12-volt source. There are several types of trailer connectors, from the most basic 4-pin flat or round designs, typically utilized for small trailers, to 7-pin trailer connectors with RV blade style or round pins. 7-pin connectors …

    Get Price
  • Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring ...

    A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector, # PK11402, that will accept up to 12 gauge wire. This is a trailer end plug. The vehicle side is the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404.

    Get Price
  • Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket ...

    A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector, # PK11402, that will accept up to 12 gauge wire. This is a trailer end plug. The vehicle side is the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404.

    Get Price
  • 7- and 4-Pole Trailer Connector Socket w Mounting Bracket ...

    It took me 30 seconds to plug the Silverado's OEM 7-pin round connector (located inside the blank insert) into the #40975 Wiring Kit and snap it into the cutout. Then I tested the flat 4-pin outlet of the #40975 with a 5 dollar 4-pin LED tester from West Marine, and …

    Get Price
  • Amazon.com: 4 pin flat trailer plug

    SUZCO 25 Foot 4 Wire 4-Flat Trailer Light Wiring Harness Extension Kit, 4-Way Plug 4 Pin Male & Female Extension Connector & Wishbone-Style with 18 Gauge White Ground Wire with SAE J1128. 4.6 out of 5 stars. 1,955.

    Get Price
  • RoadMaster 4-Wire Connector - e trailer

    Today, we're going to take a look at the Roadmaster 4-wire vehicle end trailer connector. Now, this connector will install in the vehicle that's being towed to allow you to plug in a 4-pin plug from the tow vehicle. This replacement socket will fit the Roadmaster 4-wire …

    Get Price
  • Buy Trailer Plugs, Connectors, and Receptacles

    Trailer plugs, connectors, and receptacles. Relevance Name, A to Z Name, Z to A Price, low to high Price, high to low. Showing 1-84 of 84 item (s) Quick view. Quick view. Price. $12.71. AEC-7723309. Ameriline - Grommet Nut for 12-Pin Female NATO Plug.

    Get Price
  • Genuine Toyota Towing Wire Harnesses and Adapters

    For the smaller towing jobs, this easy-to-install adapter converts a 7-pin round to a 4-pin flat connector.Designed to work specifically with the Toyota Towing wire harness Allows a standard four-way flat-wired trailer to be connected without the need to rewire the trailer or purchase additional harnesses Provides higher level of towing flexibility while protecting vehicle's …

    Get Price
  • Guide to Trailer Plugs: Towing and Charging Solutions ...

    2018-2-15u2002·u20027 Pin Trailer Plugs. Next up is the seven pin trailer plug, which comes in flat or round. In the round, you can get a big size, or a small size. Usually the big is used on trucks or heavy machinery. These vehicles have a lot more lights and require …

    Get Price
  • RoadMaster 4-Wire Connector - Trailer End Roadmaster ...

    Create your own cord or replace the damaged ends on your RoadMaster 4-wire straight and Flexo-Coil electrical cords with this 4-pole, female connector. Lowest Prices for the best wiring from Roadmaster. RoadMaster 4-Wire Connector - Trailer End part number RM-910030-2 can be ordered online at etrailer.com or call 800-298-1624 for expert service.

    Get Price
  • Ford F-350 Hitch Wiring

    2021-11-27u2002·u2002A vehicle supplies electric power to the trailer, covering all of its electric needs starting from exterior lights to the accessories that take power from the 12-volt source. There are several types of trailer connectors, from the most basic 4-pin flat or round designs, typically utilized for small trailers, to 7-pin trailer connectors with RV blade style or round pins. 7-pin connectors …

    Get Price
  • Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring ...

    A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector, # PK11402, that will accept up to 12 gauge wire. This is a trailer end plug. The vehicle side is the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404.

    Get Price
  • Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket ...

    A 3-flat is indeed a tough plug to find. It might be best to change to a 4-Way of some type. We have the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Connector, # PK11402, that will accept up to 12 gauge wire. This is a trailer end plug. The vehicle side is the Pollak Heavy-Duty, 4-Pole, Round Pin Trailer Wiring Socket, # PK11404.

    Get Price
  • 7- and 4-Pole Trailer Connector Socket w Mounting

    It took me 30 seconds to plug the Silverado's OEM 7-pin round connector (located inside the blank insert) into the #40975 Wiring Kit and snap it into the cutout. Then I tested the flat 4-pin outlet of the #40975 with a 5 dollar 4-pin LED tester from West Marine, and all light functions tested good. Shweet!

    Get Price
  • Amazon.com: 4 pin flat trailer plug

    SUZCO 25 Foot 4 Wire 4-Flat Trailer Light Wiring Harness Extension Kit, 4-Way Plug 4 Pin Male & Female Extension Connector & Wishbone-Style with 18 Gauge White Ground Wire with SAE J1128. 4.6 …

    Get Price
  • RoadMaster 4-Wire Connector - e trailer

    Today, we're going to take a look at the Roadmaster 4-wire vehicle end trailer connector. Now, this connector will install in the vehicle that's being towed to allow you to plug in a 4-pin plug from the tow vehicle. This replacement socket will fit the Roadmaster 4-wire straight and the Flexo-Coil electric cords.

    Get Price
  • Buy Trailer Plugs, Connectors, and Receptacles

    Trailer plugs, connectors, and receptacles. Relevance Name, A to Z Name, Z to A Price, low to high Price, high to low. Showing 1-84 of 84 item (s) Quick view. Quick view. Price. $12.71. AEC-7723309. Ameriline - Grommet Nut for 12-Pin Female NATO Plug.

    Get Price
  • Genuine Toyota Towing Wire Harnesses and Adapters

    For the smaller towing jobs, this easy-to-install adapter converts a 7-pin round to a 4-pin flat connector.Designed to work specifically with the Toyota Towing wire harness Allows a standard four-way flat-wired trailer to be connected without the need to rewire the trailer or purchase additional harnesses Provides higher level of towing flexibility while protecting vehicle's wiringNumber Of ...

    Get Price
  • Guide to Trailer Plugs: Towing and Charging Solutions ...

    2018-2-15u2002·u20027 Pin Trailer Plugs. Next up is the seven pin trailer plug, which comes in flat or round. In the round, you can get a big size, or a small size. Usually the big is used on trucks or heavy machinery. These vehicles have a lot more lights and require more power to be fed through the plug.

    Get Price
  • RoadMaster 4-Wire Connector - Trailer End Roadmaster ...

    Create your own cord or replace the damaged ends on your RoadMaster 4-wire straight and Flexo-Coil electrical cords with this 4-pole, female connector. Lowest Prices for the best wiring from Roadmaster. RoadMaster 4-Wire Connector - Trailer End part number RM-910030-2 can be ordered online at etrailer.com or call 800-298-1624 for expert service.

    Get Price
  • Ford F-350 Hitch Wiring

    2021-11-27u2002·u2002A vehicle supplies electric power to the trailer, covering all of its electric needs starting from exterior lights to the accessories that take power from the 12-volt source. There are several types of trailer connectors, from the most basic 4-pin flat or round designs, typically utilized for small trailers, to 7-pin trailer connectors with RV blade style or round pins. 7-pin connectors are ...

    Get Price