How Do Wires Connect to TowSmart ProClass 7-Blade Trailer Connector w/ Wire Tester
Updated 10/22/2025 | Published 10/18/2025
Question:
THe product photos and video do not show how the trailer wires fasten to this connector. screw down? crimp? solder in? Is there some water proofing?
asked by: David H
Expert Reply:
Hi David; the TowSmart ProClass 7-Blade Trailer Connector w/ Wire Tester # TS86RR uses screw terminals inside the connector to secure the wires. It has a gasket where the wires enter the connector to help keep out water and debris.
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Expert Reply:
Here are the additional pictures of the # TS86RR. You remove a set screw on the end to get to the screw terminals. Those wires stay in place to run to the test lights. I didn't have a good wire to put in the end but I cranked down the screw to show how it tightens up around the cord.
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Product Page this Question was Asked From
TowSmart ProClass 7-Blade Trailer Connector w/ Wire Tester - Trailer End
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 7 Blade
- Plug Only
- TowSmart
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David H.
10/21/2025
Thanks Robin for the answer about the screw terminals. However, I had already seen the photo included in your reply, and it is not particulary helpful in showing how the cable connection is made. Can you make a new photo showing how the access is opened and the wires attached and how the gasket fits/seals?