Oyviny 7 Pin Trailer Plug Tester & 4 Pin Trailer Tester with Double-Sided LED Indicators, Trailer Light Tester for Boat Trailer RV Truck Camper, Not Suitable for Vehicle with Lamp Out Sensor
Condition: New
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
In Stock.
Arrives
Wednesday, Apr 22
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Features
- 2 in 1 Design: This trailer wiring tester combines both 4 pin flat and rv blade 7 pin trailer light tester, allows you to test both the 4 and 7 pin trailer connectors; Note: This trailer tester does NOT work with vehicle has a lamp-out sensor
- Upgraded Double-Sided LED Indicators: 4pin & 7 pin trailer circuit tester designed with LEDs on both sides, Unlike the other testers only have one side leds, which make it hard to read; A great tool to help troubleshoot issues or verify you have install or fixed your trailer plug correctly
- 6 Light Functions: Versatile trailer connector tester can be used to test 6 separate trailer light functions, quickly confirm the functionality of taillights, brake lights, reverse lights, turn signals, electric trailer brakes and 12V auxiliary power on your vehicle
- Bright LED Indicators: Trailer hitch tester equips a LED light for each electrical function; Plugging the light tester and check, you can easily read the green LEDs and find out which wiring has a problem
- Durable Construction: For long-lasting use, this 7 blade RV trailer tester is made from durable ABS plastic, which will never rust or corrode, Tin-Plated copper terminals makes great conductivity
- Simple to Use: No batteries or wiring needed; 7 Blade & 4 Pin Tester is easy to use, ergonomic design is convenient for plugging in or unplugging; Widely used to test trailer light circuits on most Trucks, Boats, Trailers Campers, Caravans, Food Vans and other Towed Vehicles
Brand Name: Oyviny
Model: OV2246-001
Manufacturer: Oyviny
Included Components: 7 Way Blade & 4 Pin Trailer Tester
Warranty Description: 30 days manufacturer
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Apr 22
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
Great little tool,definitely helps to pinpoint the problem. Worth the money.
Reviewed in the United States on March 1, 2026 by Keith Copley
Used this to test the new trailer harness I installed on my Pathfinder. Worked like a champ and easy to use.
Reviewed in the United States on January 4, 2026 by Mat
I suspected that my brake connector was on the fritz, and this unit confirmed it quickly and easily. I also like that I could check all my lights (including turn signals) with this unit.
Reviewed in the United States on March 16, 2026 by J
Great tool to check trailer lights.
Reviewed in the United States on March 5, 2026 by Robert P.
This tester works fine, but its not very sturdy so be careful how its handled and stored. good value for the money.
Reviewed in the United States on June 8, 2025 by Marvin Earnest
Great cheap tool for the box. Beats a multimeter.
Reviewed in the United States on February 13, 2026 by Ex-Calif
This tester is easy to use and is built very solidly.
Reviewed in the United States on March 21, 2026 by Brent L. Blackburn
Great Product
Reviewed in the United States on February 20, 2026 by BBerry