Ultra-Tow 7- and 4-Way Circuit Tester
Ultra-Tow 7- and 4-Way Circuit Tester
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Ultra-Tow

Ultra-Tow 7- and 4-Way Circuit Tester

Key item features

  • ests power supply from tow vehicle to trailer and determines if vehicle is properly wired.
  • Tests both 7-way round and 4-way flat tow plugs.
  • Plug into the vehicle s tow plug and operate lights, brakes and turn signals to test circuits.
Current price is $27.99
Price when purchased online
  • Free shipping
  • Free 30-day returns
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Ships to
Arrives by Sat, May 23
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Sold and shipped by Northern Tool + EquipmentPro Seller
4.534558180227472 stars out of 5, based on 1143 seller reviews(4.5)
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About this item

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Customer ratings & reviews

4.3 out of 5 stars
stars37 ratings37 reviews
How item rating is calculated
  1. 5 stars70% (26)
  2. 4 stars14% (5)
  3. 3 stars3% (1)
  4. 2 stars5% (2)
  5. 1 star8% (3)
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Showing 1-3 of 37 reviews

Jul 28, 2025
Walmart customer
5 out of 5 stars review

Seller Verified Purchase

Makes it easy!

This makes troubleshooting trailer wiring really easy. Instantly you can tell if the problem is in the truck or the trailer.

Review from northerntool.com
Helpful?5O1QEU2PEPUX2179107450
Jul 19, 2025
Walmart customer
5 out of 5 stars review

Seller Verified Purchase

Very handy tool to have.

Works great just as expected!

Review from northerntool.com
Helpful?5O1QEU2PEPUX2179107450
Feb 10, 2025
roddog
5 out of 5 stars review

Seller Verified Purchase

Excellent purchase.

Customer service was excellent. Told them my problem and pointed me in the right direction!

Review from northerntool.com
Helpful?5O1QEU2PEPUX2179107450