Testers and Test Equipment

Are you having a problem with your trailer lights and unable to find the problem? Use an inexpensive electrical tester and save time and money. Perfect for testing brake lights and turn signals, or easily locate short circuits in trailer wiring.

Found 8 Matching Products
Filter the list of Matching Products by selecting any of these options:
  1. Tow Ready
  1. Reese
  1. Tekonsha
  1. Sloan
  1. Grote
  1. Electrical
  1. Trailer - Vehicle Adapters
  1. 7 Way to 4/5-Way
  1. 7-Way to 4-Way
  1. Yes
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SKU 20114
$11.84

Tow Ready 4-Way Flat Tester 20114 tests 4-way flat trailer connections.   Details

3 In Stock
  • UPC: 016118065640
  • MPN: 20114
SKU 20117
$20.53

Tow Ready 7 Way LED Tester 20117 tests turn signals, brake lights and gound with ease.   Details

6 In Stock
SKU 421758
$60.83

Sloan 7-way circuit inspector 421758.   Details

1 In Stock
  • Automann Number:179.TCT1
  • Grote Number:97101
  • Truck-Lite Number:87891
  • UPC: 66931400292
  • MPN: 421758
SKU 6562
$49.58

Tekonsha 6562 7-Way Trailer Emulator is used for the proper installation and set-up of a brake contr...   Details

2 In Stock
SKU 8010
$450.90

The Telkonsha Trailer Wiring Circuit Tester 8010 is designed to help quickly identify problems in t...   Details

Typically ships in 2-3 weeks.
SKU 84-9613
$3.86

Grote Test Leads are 30 inches long and the jaw accommodate up to 5/16 inch.   Details

2 In Stock
  • Wire Gauge:16
  • Length:30 inches
  • UPC: 621935043438
  • MPN: 84-9613
SKU 78117
$25.31

Reese 7-Way to 4-Way adapter with Tow-Glo.   Details

Typically ships in 2-3 weeks.
  • Adapter Style:7-Way to 4-Way
  • Manufacturers Part Number:78117
  • UPC: 042899781172
  • MPN: 78117
SKU 78118
$28.00

Reese 7-Way Blade to 4 or 5-Way Flat adapter with LED Circuit Tester.   Details

Typically ships in 2-3 weeks.
  • Adapter Style:7 Way to 4/5-Way
  • Manufacturers Part Number:78118
  • UPC: 042899781189
  • MPN: 78118

Trailer Lights Not Working? Save Time With An Electrical Tester

So your trailer lights are not working? Not sure if your trailer or tow vehicle is wired correctly? Electrical testers by Tow Ready and Tekonsha can save time and money and are the perfect addition to your trailer and towing toolkit.

Plug-in testers connect to any car trailer connector and give you an instant test of running light circuits. Great for troubleshooting trailer light problems.

Needs something more than a simple tester? Try one of Tekonsha’s more advanced units like the Current Monitor, Bench Tester or Trailer Tester. Their multi functions can make troubleshooting easier and save you time.


Testers and Test Equipment Reviews

The average customer rating for Testers and Test Equipment: 5 out of 5.

1 Review.

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