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Hopkins Endurance Powered Tail Light Converter for PWM

Hopkins Endurance Powered Tail Light Converter for PWM

Item # HM46370
Our Price: $87.29
You Save: 24%
Trailer Wiring
This item qualifies for Free Shipping
Shipping Weight: 1.69 lbs
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Great Prices for the best trailer wiring from Hopkins. Hopkins Endurance Powered Tail Light Converter for PWM part number HM46370 can be ordered online at or call 1-833-496-1390 for expert service.
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  • Videos (1)
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Hopkins Trailer Wiring - HM46370

  • Trailer Connectors
  • Vehicle End Connector
  • 4 Flat
  • Plug and Lead
  • 6 - 10 Feet Long
  • Hopkins


  • Includes: 12 ga. power lead wire, fuse & fuse assembly, splices, and ny-ties
  • LED lights test each electrical function (PWM)
  • For vehicles equipped with independent bulb turn signals, common bulb systems, or Pulse Width Modulation
  • Receives power directly from the battery
  • No HD flasher required
  • Module gets the signal from the vehicle wiring system, but powers the lights on the trailer directly from the vehicle battery
  • Protects tow vehicle electronics and itself from wiring shorts, Self- Resetting
  • Double-Molded Weatherproof Design
  • Provides brighter bulbs
  • Printed wire functions


  • Powers up to 8.0 amps per output
  • 72" length
  • 3 Year warranty

46370 Hopkins Endurance Powered Tail Light Converter for PWM

Installation Details HM46370 Installation instructions

California residents: click here

Video of Hopkins Endurance Powered Tail Light Converter for PWM

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

Video Transcript for Hopkins Wiring - Trailer Connectors - HM46370 Review

Today we're going to take a look at the Hopkins Endurance Power Taillight Converter. Now, this system will allow you to install a four way trailer connector on your vehicles. It's equipped with pulse with modulation, independent bulb system, or a common bulb system. The module portion right here is what'll get the signal from the vehicle wiring system, but it will power the lights on the trailer directly from your vehicle's battery. This will also protect your tow vehicle, electronics, and even itself from any wiring shorts, because it uses a self-resetting short proof protection. Also, there's no heavy duty flashers required on your vehicle. On the four way, if you'll notice it'll have these LED lights right here that'll test each electrical function on the four way and it does use this dust cap that'll protect the four way.

When you plug it in just plug it in, and when you're not plugged in just put the cap back over it, protects it. Does use a double-molded weather-proof design. This will provide brighter bulbs. Also has the printed water functions on the wires of the four way right here. It includes everything laid out here on the table. Has the power converter.

It has this extra 6 foot length of 12 gauge powered lead wire, and that is what'll run to the vehicle's battery to supply power to the module. Here's your power wire, you connect it. Now, before you connect this to the battery you want to run it through the included inline fuse holder, has the 20 amp fuse in it. Also has the four spliced gel connectors. Those are used to connect the wires to your vehicle. Has a self-tapping ground screw here, and what that's needed for is this white wire with the eyelet that comes out of the module, need to connect that to a good clean ground, so they do include this self-tapping screw to do that.

It includes some cable ties to take up any slack in the wiring. The last thing is this packet of dielectric grease or terminal grease, and you want to use that grease on any of your electrical connections that you would make. Now, this will power up to 8 amps per output. That should do it for the review on the Hopkins Endurance Power Taillight Converter.

Customer Reviews

Hopkins Endurance Powered Tail Light Converter for PWM - HM46370

Average Customer Rating:  4.7 out of 5 stars   (3 Customer Reviews)


I pull 2 PWC trailers in tandem and I kept burning up trailer light converters. Especially when in traffic and having to hold my brakes a while. After some time looking at different converters, I found that this one had the highest amp rating. I could tell right away that this converter was a good one. My trailer lights were bright as ever! The only problem I've had.... There are 3 LED indicators on the connector that illuminate verifying that circuit is working. One of those LEDs got moisture in it and it doesn't illuminate any more. The trailer lights still work as they should.


Stacy was so professional, courteous and helpful in getting our part ordered and shipped.


Purchased as a spare. Owners of my model motorhome report high failures and I just had my first failure replaced under warranty. Just don't want to be caught in middles of nowhere.

Etrailer is my go to company.


See what our Experts say about this Hopkins Trailer Wiring

  • Troubleshooting Brake Light Issues With A Hopkins Custom Tail Light Wiring Kit
    For your # HM56200 the first thing to check is to make sure everything is grounded. 1. The connector on the vehicle should have a ground wire secured tightly to a clean surface on the frame. A wire attached to the body or a surface with undercoating or rust can cause a ground problem. 2. The connector on the trailer should have a wire from the connector secured tightly to a clean surface on the trailer. 3. Each tail lamp assembly at the back of the trailer also must be grounded. This...
    view full answer...
  • Solution for Towing Trailer with Separate LED Tail Lights
    Since your trailer has LED taillights we don't have a converter that will work. Normally we recommend the part # C56196 but this does not work with LED bulbs. Most likely have a converter already installed on the trailer wiring if it has been used before since combined is the normal trailer wiring on vehicles and trailers. To go to a combined taillight assembly on your trailer you could also use the part # TLL160RK.
    view full answer...

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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Alexander C
Updated by:
Alexander C
Employee Jenny M
Written by:
Jenny M

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