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Direct from 3rd Party Supplier

Trailer Hitch Wire Harness Tester (4 and 5 Pin)

Item Number: TLT5 - Supplier: SNAP-ON TOOLS


Test harnesses without having to connect a trailer!

Easily locates electrical problems in the tow vehicle. Checks both 4 and 5 pin flat trailer connectors with LED indicator lights. Tests left and right signals, brake lights, and running lights. Unique and durable desgin allows user to leave the tester in line to continuously monitor the lighting system on the tow vehicle.


Warranted for defects in material and workmanship only.

WARNING: This product can expose you to chemicals including DEHP, which is known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.