Anderson Manufacturing V5411 4-Way Flat Trailer Connector Tester

The Anderson Manufacturing V5411 is a compact diagnostic tool designed to quickly verify the electrical connections on your tow vehicle's 4-way flat trailer connector. This tester plugs directly into the vehicle's connector and uses built-in LED indicators to confirm proper electrical continuity across all circuits.

Key Features:

• Tests all 4-way flat connector functions: tail lights, stop/turn signals, and ground
• Built to SAE (Society of Automotive Engineers) standards for reliable diagnostics
• Illuminated indicators provide instant visual confirmation of circuit status
• Simple plug-in design requires no additional tools or wiring
• Compact and portable for easy storage in your vehicle or toolbox

This tester eliminates guesswork when troubleshooting trailer lighting issues, helping you quickly identify faulty connections before hitting the road. Essential for anyone who regularly tows trailers, boat trailers, utility trailers, or other equipment with 4-way flat connectors.