3 Pin Trailer Plug and Socket: Waterproof silicone rubber seal, thermoplastic housing prevents rust or corrosion, ensuring a long service life, and it is RoHS certifiedGreat replacement for your old and damaged plug. Safety Guaranteed: This 3 pin trailer plug and socket is suitable for European standard trailers; Establishes the connection between the vehicle and the additional trailer and transfers the electronic signal lights from the vehicle to the trailer. Exquisite Design: Spring-loaded shutter locks the 3 sockets in use, protects the connections when not in use, 3 pin plug with waterproof silicone rubber seal. the thermoplastic housing prevents rust or corrosion, ensuring a long service life. Wide Range of Applications: Plug this small adapter into the 3-pin socket, and then connect your standard 3-pin socket. Suitable for cars, trailers, boats, mobile homes, trucks, agricultural machinery, Unimog, winter service vehicles, and works perfectly with caravans Easy to Assemble: The 12v 3-pin electrical socket and plug with 2 mounting points can easily replace damaged parts. And it can be rewired by referring to the diagrams described on the Internet. If you have any questions about using the product, please feel free to contact us! We will deal with or answer your questions as soon as possible. Name: 3-Pin Trailer Adapter. 1. The 3-pin power socket complies with EU standards and is sealed with waterproof silicone rubber. 2. Thermoplastic housing prevents rust or corrosion. 3. Suitable for cars, trailers, caravans, boats, RVs, trucks and works great with tractor. Specifications: Color: Black Material: Plastic + Copper + Silica Gel Voltage: DC 12v According to DIN standard: 9680 Material: Impact resistant thermoplastic with rubber grommet Socket size: 75mm * 34mm * 24mm Socket size: 70mm * 55mm * 30mm Socket installation method: 2 fixed points Installation mode: 2 mounting points Package Includes: 1 x 3 Pin Plug 1 x 3 Pin Plug Notes: 1. Due to manual measurement, please allow a difference of 1-3mm. 2. Before purchasing, please carefully check that the size information and pictures match the product to avoid an uncomfortable shopping experience.