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The Oyviny 7 to 4 & 5 Pin Trailer Adapter is a versatile, heavy-duty towing solution that converts a 7-way RV-style connector into standard 4-pin or 5-pin flat trailer plugs. Built with waterproof nylon housing and brass terminals, it guarantees reliable electrical connections across a wide range of vehicles and trailers. Its plug-and-play design ensures quick, hassle-free installation without any wiring modifications, making it the go-to adapter for professional-grade towing versatility.













































| ASIN | B08MDW63DH |
| Automotive Fit Type | Universal Fit |
| Batteries Included | No |
| Batteries Required | No |
| Brand | Oyviny |
| Country of Origin | USA |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,945) |
| Date First Available | 30 March 2021 |
| Finish Type | Polished |
| Includes Rechargeable Battery | No |
| Item Dimensions LxWxH | 10 x 10 x 10 Centimeters |
| Item Weight | 150 g |
| Item model number | S70-45-001 |
| Manufacturer | Oyviny |
| Material | Brass |
| Model | S70-45-001 |
| Product Dimensions | 10 x 10 x 10 cm; 150 g |
| UPC | 769894715529 |
| Vehicle Service Type | Boat, Car, RV |
R**T
After removing boat from lake, I plugged my trailer back into the truck. Few minutes later lights went out. Fuses were good, wireing seemed to be ok but no lights. Bought this adapter because it has 4 & 5 connection points. Plugged it in and all the lights work. Old adapter apparently shorted inside. This is a great choice to plug in 4 & 5 different types of trailer lights.
M**.
I like that it can support two harnesses. Excellent idea
C**L
Sa très bien fonctionné
J**E
This adapter has been wiring great with my 2021 GMC Acadia AT4's factory 7-blade harness. I have two trailers that I tow but they are both 4 pin. For the extra $1 to get the 5-pin it was worth it. I do chew a trailer to tow eventually with a 5-pin so we will find out how it works there.
R**D
Great value, good quality and works perfectly.
Trustpilot
1 month ago
5 days ago