Trailer Socket IWH KFZ 13-pin 20 A 12 V – Vehicle Trailer Plug

The IWH KFZ 13-pin 20 A 12 V trailer socket is designed to provide a standard, reliable electrical interface between a towing vehicle and a trailer. Compatible with 12 V vehicle electrical systems, this 13‑pin socket supports lighting circuits and auxiliary power lines in a single compact unit. It is engineered for common towing applications where secure signal transmission and stable current handling up to 20 A are required.

Advantages

This 13-pin trailer plug combines a standardized pin layout with current capacity suitable for most passenger vehicle towing needs. The construction delivers consistent contact pressure for secure electrical connections and reduces the risk of intermittent faults. The socket is compact and intended for straightforward mounting on trailers or tow vehicles, facilitating correct trailer electrical integration and easier maintenance.

Suitable for

• Connecting trailer lighting and indicators to 12 V towing vehicles
• Powering auxiliary circuits on small trailers and caravans
• Replacing worn or damaged 13‑pin trailer sockets
• Use in towing setups requiring a 13‑pin standardized connection

Key specifications

• Voltage: 12 V DC
• Rated current: 20 A
• Pin configuration: 13-pin standard layout for vehicle-trailer connections
• Application: trailer lighting, indicators, ground and auxiliary circuits
• Mounting: panel or surface mounting compatible with vehicle/trailer installation

How to use

Mount the socket in an accessible, protected position on the trailer or towing vehicle and secure it according to the mounting provisions. Wire each conductor to the corresponding circuit on the vehicle harness following the 13‑pin standard pinout: lighting, indicators, 12 V auxiliary supply, and ground. Ensure all connections are tightened and insulated to prevent moisture ingress. After wiring, test each function — left/right indicators, brake lights, tail lights and auxiliary power — before regular towing operations.

Usage recommendations

For reliable operation, periodically inspect the contacts for corrosion and clean as needed. Use dielectric grease on contacts to reduce oxidation and ensure secure mating. Replace the socket if contacts show excessive wear or if electrical faults persist after tightening and cleaning.