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Trailer Wiring - Multi-Function Adapter, 4 Flat

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Buyers Products Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat - 4 Flat
Buyers Products Trailer Wiring

(156 reviews)


Code: 337TC1474P

Retail: $42.16
Our Price: $19.19
In Stock
  • Trailer Wiring
  • Wiring Adapters
  • Universal Fit
  • 4 Flat to 4 Flat
  • 4 Flat to 7 Blade
  • Plug and Lead
  • Buyers Products


...Features: Adapts 4-way flat to both 7-way RV and 4-way flat 4-Way flat output connects tail lights, brake lights, and turn signals 7-Way connects tail, brake, reverse, turn signals, and auxiliary...

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Curt Trailer Connector Adapter with Backup Alarm - 4-Way to 7-Way RV and 4-Way Flat - 4 Flat
CURT Trailer Wiring

(67 reviews)


Code: C57102

Retail: $61.67
Our Price: $46.16
In Stock
  • Trailer Wiring
  • Wiring Adapters
  • Universal Fit
  • 4 Flat to 7 Blade
  • 4 Flat to 4 Flat
  • Plug Only
  • CURT


This multi-function, vehicle-end connector converts any 4-way flat, vehicle-end plug to a combination 7-way outlet and 4-pole flat outlet. Features an integrated backup alarm.

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Adapter 4 Pole to 6 Pole and 4 Pole Trailer Wiring Adapter - 4 Flat
Hopkins Trailer Wiring

(64 reviews)


Code: 37175

Retail: $45.17
Our Price: $34.94
In Stock
  • Trailer Wiring
  • Wiring Adapters
  • Universal Fit
  • 4 Flat to 6 Round
  • Plug and Lead
  • Hopkins


...Adapter converts from 4 pole wiring on vehicle to 6 pole round plug and 4 pole flat. Additional wire leads for brake and an accessory. 4 Pole to 6 pole and 4 pole vehicle side trailer wiring adapter...

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Hopkins Endurance Multi-Tow 4-Way Flat to 7-Way RV Trailer Adapter w/ 4-Way Vehicle End Plug - 4 Flat
Hopkins Trailer Wiring

(62 reviews)


Code: HM47180

Retail: $52.49
Our Price: $39.72
  • Trailer Wiring
  • Wiring Adapters
  • Universal Fit
  • 4 Flat to 7 Blade
  • 4 Flat to 4 Flat
  • Plug and Lead
  • Hopkins


...Features: 7-Blade, RV-style trailer connector lets you connect your trailer's wiring to your vehicle Either serves as a replacement for a damaged 7-way socket or an adapter that changes your...

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Adapter 4 Way to 7-Blade RV Connector w/Test Lamps - 4 Flat
CURT Trailer Wiring

(11 reviews)


Code: C96KR

Retail: $44.95
Our Price: $37.23
In Stock
  • Trailer Wiring
  • Wiring Adapters
  • Universal Fit
  • 4 Flat to 7 Blade
  • Plug and Lead
  • CURT


...Features: Adapts 4-way flat to a 7-blade RV connector Includes integrated test lamps which display proper connections Shows if the wiring on your RV isn't working properly - burned out bulbs...

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Adapter 4-Pole to 7-Pole and 4-Pole - 4 Flat
Hopkins Trailer Wiring

(646 reviews)


Code: 37185

Our Price: $59.13
In Stock
  • Trailer Wiring
  • Wiring Adapters
  • Universal Fit
  • 7 Blade to 4 Flat
  • Plug and Lead
  • Hopkins


...Features: Adapter converts from 4-pole wiring on your vehicle to 7-pole round plug and 4-pole flat wiring for trailer side Adds additional wire leads for brakes, power, and accessory wiring Wire...

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Adapter 4 Pole to 7 Pole and 4 Pole w/Test Lamps - 4 Flat
CURT Trailer Wiring

(309 reviews)


Code: C57674

Retail: $52.95
Our Price: $47.87
In Stock
  • Trailer Wiring
  • Wiring Adapters
  • Universal Fit
  • 4 Flat to 7 Blade
  • 4 Flat to 4 Flat
  • Plug and Lead
  • CURT


...Features: Adapts 4-way flat to both 7-way round and 4-way flat Includes integrated test lamps which display proper connections Shows if the wiring on your trailer isn't working properly - burned...

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TowSmart Plug-In Trailer Connector Adapter w/ Wire Tester - 4-Way Flat to 7-Blade - 4 Flat
TowSmart Trailer Wiring

Code: TS32ZR

Retail: $14.99
Our Price: $14.19
  • Trailer Wiring
  • Wiring Adapters
  • Universal Fit
  • 4 Flat to 7 Blade
  • Plug Only
  • TowSmart


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TowSmart ProClass Trailer Connector - 4-Way to 7-Way and 4-Way Flat - Vehicle End - 4 Flat
TowSmart Trailer Wiring

Code: TS59RR

Retail: $39.99
Our Price: $27.00
  • Trailer Wiring
  • Wiring Adapters
  • Universal Fit
  • 4 Flat to 7 Blade
  • 4 Flat to 4 Flat
  • Plug Only
  • TowSmart


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Versatile Trailer Wiring with 4 Flat Multi-Function Adapters

Explore the convenience of 4 Flat Multi-Function Adapters for trailer wiring. These adapters simplify installation, connect seamlessly to existing wiring, and offer reliable performance. Perfect for enthusiasts looking to enhance their towing setup with minimal hassle.

These adapters streamline the process by connecting directly to your existing 4-way wiring harness. They often come with pre-drilled holes and brackets for easy mounting, making installation quick and efficient. This setup is ideal for those who want a clean, organized wiring solution.
A Multi-Function Adapter with a 4 Flat connection offers versatility and ease of use. It allows for seamless integration with various trailer types, ensuring that brake lights, turn signals, and other functions work reliably. This setup is perfect for those who frequently switch between different trailers.
When installing, consider using L-brackets or zip ties for secure mounting. Ensure the adapter is accessible and protected from potential damage. Some enthusiasts recommend replacing the included screws with larger ones for a more secure fit, especially if mounting on a bumper.
Yes, these adapters are designed to be versatile and can be used with a wide range of vehicles, from Jeeps to Subarus. They are often plug-and-play, making them adaptable to different setups without the need for additional wiring modifications.
If you experience issues, check the connections and ensure everything is securely fastened. If problems persist, consider reaching out to the manufacturer for support. Many enthusiasts have found that a quick call can resolve issues, as companies often stand behind their products with excellent customer service.