Your Professional 6-Pin to 4-Flat Adapter Supplier
Product Overview
The Adapter 6-Pin to 4-Flat Adapter is an essential solution for seamlessly connecting vehicles with a 6-pin connector to trailers with a 4-flat connector.
Designed for durability and ease of use, this adapter ensures efficient and reliable trailer lighting and brake functions, making it ideal for fleet operators, vehicle manufacturers, and service providers.

Main Benefits
Conversion
Converts a 6-pin vehicle connector to a 4-flat connector with no modifications required.
01
Quick Installation
Easily installs without tools, offering a hassle-free solution for your business.
02
Durability
Built with corrosion-resistant thermoplastic material, ensuring longevity and reliable performance.
03
Corrosion-Resistant Pins
Features non-corrosive brass pins for enhanced durability.
04
Compact Design
The compact design ensures easy storage when not in use, saving valuable space.
05
Specification Table
| Item | Specification Details |
|---|---|
| Type | Trailer wire harness |
| Material | TPE/PO, PVC, Nylon, Silicon, Plastic |
| Rated Amperage | 7.5 amps per circuit |
| System Compatibility | Designed for 12-volt systems |
Our Support
Custom blister card or polybag packaging available.
Options for sea and air shipment.
24/7 support with <1-hour response time.
ONE-year warranty + free preventive maintenance.
Remote diagnostics, Free replacement during repairs, and transparent pricing.
Over thousands of clients trust us – because we don't stop at delivery.
Products installation
-
To install on trailer
1. Use a Circuit Tester to identify individual wires by function.
2. Attach wires of the 25 foot connector to the corresponding function wires as determined in Figure 1. Leave approximately 18 inches of slack between the trailer and the tow vehicle to allow the trailer to turn.
3. Attach ground to trailer frame with screw provided.
4. Test all functions to assure proper installation.
NOTE: Identify wires by function only. Color coding is not standard with all manufacturers. -

(GD) = Ground / White | Tierra / Blanco
(LT) = Left Turn / Yellow | Direccional Izquierda / Amarillo
(TM) = Taillight / Brown | Luces Traseras / Café
(RT) = Right Turn / Green | Direcccional Derecha / Verde
Y-Harness design eliminates secondary corrosion points making it easier to install with less cutting and splicing -
NOTE & TIPS
1. Identify wires by function only. Color coding is not standard with all manufacturers.
2. Grease applied to the trailer wiring terminals on a regular basis will help prevent corrosion.
3. A heavy duty flasher may be required to eliminate rapid flashing.
4. Always unplug boat trailer connector before backing trailer into the water.
Certifications





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