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7-Way Adapter for Hopkins Tow Doctor Trailer End Test Unit

7-Way Adapter for Hopkins Tow Doctor Trailer End Test Unit

Item # HM4010509031
Our Price: $54.79
Electrical Tools
Shipping Weight: 0.54 lbs
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  • All Info
  • Reviews (3)
  • Q & A (0)
  • Videos (1)
  • Photos

Hopkins Electrical Tools - HM4010509031

  • Testers
  • Tow Function Tester
  • Hopkins


  • Fits Hopkins Tow Doctor Trailer End Test Unit (HM50928)
  • Quantity: (1) 7-way adapter

4010509031 Hopkins 7- Way Adapter for Tow Doctor

California residents: click here

Video of 7-Way Adapter for Hopkins Tow Doctor Trailer End Test Unit

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Hopkins Electrical Tools - 7 Way RV Blade Tester - HM4010509031

Hello everybody, this is Jeff at Today, we're gonna take a look at the 7-way blade adapter for the Hopkins Tow Doctor Trailer End Test Unit. Now, this is for a quantity of one 7-way RV blade adapter, and this adapter works with the Hopkins Tow Doctor Trailer End Test Unit, which we sell separately on our website, it's part number HM50928, and I wanna pop up a picture of that, there's that test unit, and you can see on the end of it, that's where this will plug in. Basically, this adapter here will allow one person to check the trailer wiring and functions are working correctly. This then right here you can see will plug into the end of the test unit, and then on this end, you'll plug in your 7-way RV blade connector from your trailer to this. This will test all trailer functions, the right turn, the left turn, the brake, the tail, backup lights, electric brakes, and even the auxiliary power.

The trailer lights will illuminate, and the LED bulbs will light on the tester to show function operation. Also, what's nice is for electric brakes, the magnets are activated to determine correct operation. The amperage meter on the test unit will also show actual amp draw. Now, this one is for the 7-way RV blade style, they also also offer adapters to test a 4-way flat, which is part number HM4010509029, the six way round, part number HM4010509030, and even the seven way round pin connector, which is part number HM50944. All three of those adapters we also sell separately on our website and are usually listed on this product page as a related product.

But that should do it for the review on the 7-way RV blade adapter for the Hopkins Tow Doctor Trailer End Test Unit..

Customer Reviews

7-Way Adapter for Hopkins Tow Doctor Trailer End Test Unit - HM4010509031

Average Customer Rating:  5.0 out of 5 stars   (3 Customer Reviews)


Everything went well all the way through the process except with the post office. Contacted etrailer again and they sent me another part that arrived in 2 days. Very helpful, will recommend highly.




See what our Experts say about this Hopkins Electrical Tools

Info for this part was:

Employee DeAnne T
Written by:
DeAnne T
Employee Jeff D
Installed by:
Jeff D
Employee Alexander C
Updated by:
Alexander C

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