4 Way Flat to 7 Way RV and 4 Way Trailer Wiring Harness Adapter w
4 Way Flat to 7 Way RV and 4 Way Trailer Wiring Harness Adapter w
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Delivery & Shipping
Delivery & Shipping
Shipping Time
🚚 Free Economy Shipping (3–7 business days)
⚡ Standard Shipping ($19.99) — Get your order in 3–5 business days!
International shipping: about 8-15 working days.
Orders require a standard processing time of up to 48 business hours before shipment.
Shipping Cost
We offer FREE SHIPPING on all of our products to customers in the Continental U.S.
For remote areas such as Alaska, Hawaii, Puerto Rico, or international customers such as those in Canada or Mexico, we will charge an additional shipping fee based on the weight of your purchase. If you need a price quotation, please contact us at service@toptuningboost.com
Tracking
Your tracking number will be sent in email immediately after we ship the order out. You may follow the link in the email to check the estimated arrival time of your order.
Usually ships from our US warehouse. If out of stock, items will be shipped from our international partners (delivery in 3–14 business days).
Refund & Returns
Refund & Returns
We hope you love what you've ordered! But just in case you're not 100% satisfied.
We've made the return process super easy. If for any reason you are unhappy with your order or should you wish to return or exchange a product then please contact us at service@toptuningboost.com at any time from Monday to Friday within 30 days after you received the item.
Description
Description
About this item
- Nilight dual-output trailer wiring adapter is easy to connect a mismatched vehicle socket and trailer plug. Makes it easy to tow different trailers with your vehicle, equipping it with a standard 7 Way RV blade socket while retaining use of the existing 4 way flat wiring. It features both 4 Pin and 7 Pin connector in case you have multiple trailers with different connectors
- Reliable Connection: This wiring sockets has a 7 pin RV blade and a 4 way flat socket, adapting for versatile towing options. Additional leads for brake, reverse and power function allowing you to transfer your 4-pin factory connector to a standard 7-way.
- Plug and Play: The Trailer wiring harness socket plugs into factory 7 way socket on your vehicle with minimal splicing required. Come with mounting bracket and hardware for convenient attachment to your hitch or bumper
- Durable Construction: This trailer adapter is designed to Withstand inclement weather conditions. The 7 way plug and 4 way outlet has a spring-loaded dust cover that keeps the connection points dry and protected when not in use.Protects the inner contacts from rust or damage. The black wire loom keeps the wiring contained and protects the harness for long lasting use.
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Wide Application: Come with 1 x Trailer Adapter Plug, 1 x Mounting bracket, a pack of hardware, 1 x User Manual. Perfect for most trailers, semitrailers, caravans, RV. Commonly used with T-connectors or tail lamp converters with 4-way flat car end connections.

Nilight electrical connectors are designed and manufactured to give you a reliable connection every time you plug in your trailer. This Multi-Tow Trailer Connector Adapter allows 7 blade connect for RV's or large trailers and the simplicity of the 4 plug for utility trailers or other trailers with 4/7 pin connectors. be used to connect the taillights, brake lights, turn signals, reverse lights, trailer brakes and auxiliary power.
Product Details

multi-tow trailer plug adapter
The multi-tow trailer connector adapter converts 4 way wiring on your vehicle side to a combination 7 way outlet & 4 pin flat outlet for trailer side.

4-Way Flat Outlet
Can be connected to the 4-way flat plug. 4-Way flat output connects tail lights, brake lights, and turn signals

Well Protected
Slit loom keeps wires contained and well protected. Concealed terminals help ensure a reliable connection.

Full mounting accessorie
Includes mounting accessorie for convenient install to the vehicle or trailer hitch. Simple plug into existing wiring with minimal splicing required.
Application




Warm Tip

Warm Tip
- Installed by an RV repair service is recommended if you have less knowledge on wiring connection for extra leads.
- Grease applied to trailer wiring terminals on a regular basis helps to prevent corrosion.
- A heavy duty flasher will be required to eliminate rapid flashing, if needed.
