Keszoox
Universal 4-Way Flat Trailer Plug Dust Cap — Rubber Connector Boot with Safety Loop
Universal 4-Way Flat Trailer Plug Dust Cap Rubber Connector Boot with Safety Loop
Couldn't load pickup availability
Universal 4-Way Flat Trailer Plug Dust Cap — Rubber Connector Boot with Safety Loop
Keep your trailer's electrical connection clean and protected with this universal 4-way flat trailer plug dust cap. Made from durable rubber, it fits snugly over the 4-way flat plug on your RV, boat trailer, truck, or utility trailer when not in use, blocking dirt, moisture, and road debris from entering the connector pins. The integrated safety loop lets you tether the cap to the vehicle so it’s never lost when disconnecting.
Key Specifications
| Parameter | Value |
|---|---|
| Material | Rubber |
| Overall Length | 13.5cm |
| Plug Cover Length | 3.5cm |
| Color | Black |
| Compatibility | Universal 4-way flat trailer plug (standard US/North America type) |
| Quantity Options | 1 / 2 / 4 pcs |
| Origin | CN |
Why Use a Trailer Plug Dust Cap?
- Prevents pin corrosion — Moisture and road salt are the #1 cause of trailer connector failure; this cap seals the plug when not in use
- Blocks dirt and debris — Keeps mud, dust, and insects out of the 4-pin connector cavity during storage and transport
- Safety loop tether — Loop attaches to the vehicle hitch or frame so the cap stays with the vehicle and is never misplaced
- Durable rubber construction — Flexible and weather-resistant; won’t crack in cold temperatures or UV exposure
- Universal fit — Fits standard 4-way flat plugs used on most North American trailers, RVs, boats, and utility trailers
Typical Applications
- RV and camper trailer hitch wiring protection during storage
- Boat trailer plug protection between launches
- Utility and cargo trailer connector protection
- Truck and SUV hitch receiver wiring protection
- Replacement for lost or damaged OEM trailer plug covers
Frequently Asked Questions
Q: Will this fit a 7-way round trailer plug?
No. This cap is designed specifically for the 4-way flat trailer plug (4-pin flat connector). For 7-way round plugs, you need a 7-way round dust cap.
Q: Is the rubber UV-resistant?
The rubber material provides good resistance to moderate UV exposure and temperature variation. For long-term outdoor storage in direct sunlight, consider storing the trailer in a shaded area or using an additional cover.
Package Contents
- 1 / 2 / 4 × Universal 4-Way Flat Trailer Plug Dust Cap with Safety Loop (per selected quantity variant)
