Test Towing Circuits at the Back of the Truck.

The trailer circuit testers allow one man to test trailer circuits quickly and easily. The Multi Trailer Tester Jobber Pack allows one person to test all connection types.

Features and Benefits:

• Plugs into the vehicle side socket
• LEDs indicate that each circuit is working
• Eliminates guesswork
• Winged grip for easy installation and removal from electrical connector
• 3-Way Trailer adapter adapters 7-way flat (spade) to 6-way round and 4/5 pin type connections

Includes:

• 7-Way Flat (Spade) Pin Trailer Circuit Tester (#7893) • 7-Way Round Pin Circuit Chaser™ (#7865L) • 6-Way Round Pin Trailer Circuit Tester (#7897) •  4/5 Pin Harness Checker (#7866) • 3 Way Trailer Adapter (#8000)