Description
Quickly and easily troubleshoot tractor-trailer circuits
Verify vehicle side continuity
Verify wire configuration
Winged grip for easy removal
Test 4, 5, 6 and 7 round pin and 7 spade
Item# Qty
Tractor-Trailer Circuit Tester, 4 and 5-Way Pin Trailer Adapter, Black (Pack of 1)
Quickly and easily troubleshoot tractor-trailer circuits
Verify vehicle side continuity
Verify wire configuration
Winged grip for easy removal
Test 4, 5, 6 and 7 round pin and 7 spade