Product Description
This 12″ flat 4-pin trailer plug extension harness features a built-in LED wire connection tester for fast diagnostics and safe trailer wiring. The flat-style plug is compatible with standard 4-way trailer connectors and adds flexibility when extending your trailer wiring setup for lights and signals.
Specifications & Features
- Connector Type: 4-pin flat trailer plug
- Length: 12 inches
- Function: Works as an extension harness and built-in wire tester
- Plug Style: Flat rectangular connector
- Tester Feature: Integrated LED indicators show wire connection status
- Ideal for trailers, utility vehicles, and towing setups using 4-way connectors
