WirthCo 80911 4-Way Trailer Connector Test Light

The WirthCo 80911 Trailer Test Light is an essential diagnostic tool for testing 4-way trailer wiring connectors without needing a trailer attached. This handy tester plugs directly into your vehicle's existing 4-way car-end connector to verify proper operation of all circuits including tail lights, brake lights, and turn signals.

Key Features:

• Tests all four circuits of standard 4-way flat trailer connectors
• Eliminates need for trailer attachment during wiring installation or troubleshooting
• Visual LED indicators show proper function of each individual circuit
• Compact, portable design for easy storage in vehicle or toolbox
• Durable construction for reliable long-term use

Ideal for DIY installers, RV owners, and anyone who needs to verify trailer wiring functionality before hitting the road. Simply plug into your vehicle's 4-way connector and activate each lighting circuit to confirm proper operation and identify any wiring issues.

WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.