3-Way Y Splitter Trailer Light Wiring Harness- Waterproof Connector Cable for Trailer, RV, Truck, LED Tail Light System
Product Description
Technical Specifications
| Parameter | Description |
| Product Name | 4-Pin Coiled Trailer Light Extension Cable |
| Connector Type | 4-Pin Flat Trailer Plug (Male to Female) |
| Cable Structure | Coiled (Spiral) Extension Cable |
| Wire Gauge | 16 AWG / 18 AWG |
| Voltage Rating | 12V DC / 24V DC |
| Current Rating | Up to 5A per pin |
| Cable Length (Unstretched) | 0.5m / 1m / Custom |
| Cable Length (Stretched) | Up to 1.5m / 3m / 5m / Custom |
| Jacket Material | TPU / TPE / PVC |
| Connector Features | Molded / Weatherproof / Dustproof Cap Optional |
| Operating Temp. | -40°C ~ +80°C |
| Color | Black (default) / Optional |
| Application | Trailer, RV, Truck, Agricultural Vehicle, LED Light Systems |
Product Introduction
The 4-Pin Coiled Trailer Light Extension Cable is designed for easy and flexible connection between a towing vehicle and trailer lighting system. With its spiral coiled design, the cable extends and retracts without tangling, providing a secure signal connection even during sharp turns and rough terrain.
Ideal for LED brake lights, tail lamps, turn signals, and marker lights, this extension is a must-have for trailers, RVs, utility trucks, and off-road gear that require stable and extendable wiring.
Key Features
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4-Pin Male to Female Flat Plug – Compatible with most trailer systems
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Flexible Coiled Design – Retracts when not in use, resists tangling
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Weatherproof Construction – Molded ends resist water, dust, and corrosion
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High Elasticity TPU Jacket – Maintains flexibility in cold & hot conditions
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Plug-and-Play – Easy installation with secure fit
Compatible Applications
Safety & Usage Guidelines
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Match pinout with trailer socket (standard 4-flat wiring)
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Stretch only within rated coil limit
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Avoid pinching or over-tight coiling
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Store in dry place after use
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Do not overload beyond rated amperage
OEM / ODM Customization Options
| Option | Description |
| Connector Type | 4-Pin / 5-Pin / 7-Pin Flat or Round / SAE / Deutsch |
| Jacket Material | TPU / TPE / PVC / Cold-Weather Rated |
| Coil Length | 0.5m / 1m / 1.5m / Custom (Unstretched) |
| Wire Gauge | 18AWG / 16AWG / 14AWG |
| Color | Black / Custom |
| Packaging | PE Bag / Blister Pack / Custom Label |
| Branding Support | Cable logo print / Plug emboss / Barcode sticker |
FAQ
Frequently Asked Questions (FAQ)
Q1. Are you factory or trade company?
A: We are factory of more than 16 years export experience.
Q2. What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery.
Q3. What is your terms of delivery?
A: EXW, FOB, CFR, CIF, DDU.
Q4. Samples ?
A: 2-5 pieces free samples are available, freight on you. Delivery time usually is 2-3 days. Customized samples will take 5-10 days.
Q5. What is delivery time if we place an order?
A: It depends order quantities. Usually, we can deliver goods within 10-15 working days, for more QTY order, let's confirm when you place official order.
Q6. Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q7. How to ship out the cargo?
A: At your request, by sea, by express, all are available.
