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7-Pole, Round-Pin Adapter for Hopkins Tow Doctor Vehicle-End Test Unit

Retail: $73.55
Our Price: $53.74
In Stock
This adapter lets you test a 7-way, round-pin, vehicle-end connector to ensure that all the wiring functions are working properly. Plugs into the extension cord on your Hopkins Tow Doctor wire ...
Features: Lets you test a 7-way, round-pin, vehicle-end connector with your Hopkins Tow Doctor vehicle-end wiring tester (HM50918; sold separately) Ensures that vehicle plug has been installed
  • Testers
  • Tow Function Tester
  • Hopkins
  • Black

Replacement Tow Doctor Tester

Retail: $637.69
Our Price: $292.47
In Stock
Replacement tester for Hopkins Tow Doctor Trailer End Test Unit (HM50928) Allows one person to check that trailer wiring and functions are working correctly Tests all trailer functions: right turn
  • Testers
  • Tow Function Tester
  • Hopkins

Hopkins Tow Doctor Vehicle End Test Unit

Our Price: $272.30
In Stock
backup Heavy-duty, 20' extension cord included Adapts to 4-Flat, 6-Pole Round, or 7-way Blade 50918 Hopkins Tow Doctor Vehicle End Test Unit
  • Testers
  • Tow Function Tester
  • Hopkins

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

Our Price: $58.49
In Stock
Features: Fits Hopkins Tow Doctor Trailer End Test Unit (HM50928) Quantity: (1) 7-way adapter
  • Testers
  • Tow Function Tester
  • Hopkins

4-Way Flat Adapter for Hopkins Tow Doctor Trailer End Test Unit

Our Price: $33.50
In Stock
Features: Fits Hopkins Tow Doctor Trailer End Test Unit (HM50928) Quantity: (1) 4-way flat adapter
  • Testers
  • Tow Function Tester
  • Hopkins

6-Way Round Adapter for Hopkins Tow Doctor Trailer End Test Unit

Our Price: $33.59
Features: Fits Hopkins Tow Doctor Trailer End Test Unit (HM50928) Quantity: (1) 6-way round adapter
  • Testers
  • Tow Function Tester
  • Hopkins

New Arrivals — From Our Shop to You!

Chosen by folks who live and breathe this, just like you.

New Arrivals — From Our Shop to You!

Chosen by folks who live and breathe this, just like you.

Kenny
Kenny etrailer team member
Kenny etrailer team member

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Installations

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Customers Helped

Any questions? Chat us from Missouri

Hopkins Tow Doctor Trailer End Test Unit

Retail: $637.69
Our Price: $509.60
In Stock
  • Testers
  • Tow Function Tester
  • Hopkins

Roadmaster Tow Dolly with Electric Brakes - 4,250 lbs

Retail: $3,896.07
Our Price: $3,525.00
Tow your vehicle without installing a tow bar or base plates. This tow dolly has a pivoting deck for easy maneuvering and electric brakes for safe stopping. Sliding ramps adjust side-to-side from ...
Features: Tow dolly makes it easy to tow different vehicles without installing a tow bar and base plates Ideal for cars with front-wheel-drive automatic transmissions Towing deck keeps front wheels
  • Tow Dolly
  • Wheel Decks
  • Roadmaster
  • Powder Coated Steel
  • 8-1/2W x 12L Foot
  • 4250 lbs

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Retail: $69.95
Our Price: $46.14
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly in OEM tow package port. Powered converter reduces strain on wiring system ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Designed for use with a factory tow package Compatible with 5-pole, 6-pole and
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • CURT
  • Hidden
  • Plug-In
  • 4 Flat
  • Powered Converter
  • Factory Tow Package

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Pole Flat Connectors

Retail: $57.99
Our Price: $32.61
In Stock
Quickly and easily install a 7-way and a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package wiring harness - no cutting, splicing or ...
Features: Provides both a 7-way RV-style and a 4-pole flat trailer connector at the back of your vehicle to power your trailer's signal lights Designed for use with a factory tow package
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • CURT
  • Plug-In
  • 4 Flat
  • 7 Blade
  • No Converter
  • Factory Tow Package

Hopkins Endurance Multi-Tow 4-Way Flat to 7-Way RV Trailer Adapter w/ 4-Way Vehicle End Plug

Retail: $52.49
Our Price: $47.55
Adapt a 4-way flat to a 7-way RV-style socket while still retaining use of the 4-way. Or simply replace a damaged 7-way connector. Plug into tow package for 7-way, or plug into existing 4-way and ...
functions needed for 7-way Can also be plugged into a vehicle with a factory tow package Enhanced weatherproofing with internal seals and corrosion-resistant terminals Durable ABS plastic lids keep out dirt
  • Wiring Adapters
  • Hopkins
  • 4 Flat to 4 Flat
  • 4 Flat to 7 Blade
  • Universal Fit

Tow Ready Replacement 7-Way Harness and Socket for Factory Tow Package

Retail: $46.98
Our Price: $35.40
In Stock
Replace your damaged OEM 7-way wiring harness and socket with this Tow Ready harness. Splices into your factory tow package wiring with the included butt connectors. 7-Way trailer connector sold ...
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Tow Ready
  • Splice-In
  • 7 Blade
  • No Converter
  • Factory Tow Package

TowSmart Multi-Tow 7-Way Blade and 4-Way Flat Trailer Connection - Ford/GMC/Dodge

Retail: $39.99
Our Price: $32.00
In Stock
You're lining up the trailer in the driveway when you realize the plug doesn't match. No time to rewire. You mount the bracket, snap in the adapter, and the lights fire up. Quick install, solid connection, and you're back on schedule.Highlights Multi-Tow Adapter: Converts 7-blade to 4-way flat. OEM Fit: Designed for Ford, GMC, and Dodge vehicles. Plug-and-Play Design: No cutting or splicing required. Compact Housing: Fits snugly
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • TowSmart
  • Plug-In
  • 4 Flat
  • 7 Blade
  • No Converter
  • No Tow Package

TowSmart ProClass Multi-Tow 7-Way and 4-Way Flat Trailer Connector - Vehicle End

Retail: $37.99
Our Price: $27.88
... spot, ready for whatever you're towing next. Connector for All Your Trailers This TowSmart ProClass Multi-Tow socket gives you a 7-way blade and a 4-way flat in the same housing. It's a direct hardwire setup for vehicles that tow multiple trailer
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • TowSmart
  • 7 Blade
  • 4 Flat
  • Universal Fit

Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector - C59236

Retail: $130.95
Our Price: $70.68
In Stock
Install a 4-way flat on your vehicle with this splice-in harness. Powered converter connects directly to battery to reduce strain on wiring. Potted, SMT construction boosts water and vibration resistance. Works with 2-wire, 3-wire, and PWM systems. made using the through-hole method. And where would vibration be more likely to occur than in towing applications? Curt converters also produce less heat, leading to increased durability and longer life
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • CURT
  • Splice-In
  • 4 Flat
  • Powered Converter
  • Universal Fit

Hopkins Endurance Multi-Tow Twist-Mount 7-Way RV and 4-Way Flat Trailer Connector - Vehicle End

Retail: $38.29
Our Price: $22.79
In Stock
Quickly and easily replace a damaged 7-way and 4-way, or add a new one to your vehicle with a factory tow package. The twist-in socket has heavy-duty weatherproofing and features a cover that opens ...
Features: 7-Blade, RV-style trailer connector serves as a replacement for a damaged socket Can also be added to a vehicle with a factory tow package 4-Pole flat connectors also built in Simple
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Hopkins
  • 7 Blade
  • 4 Flat

Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Retail: $52.66
Our Price: $30.28
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-connector plugs directly into 7-way OEM tow package wiring harness - no cutting, splicing or tapping ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Designed for use with a factory tow package that has a 7-way connector Retains
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • CURT
  • Plug-In
  • 4 Flat
  • No Converter
  • Factory Tow Package

T-One Vehicle Wiring Harness for Factory Tow Package - 4-Pole Flat Trailer Connector

Retail: $80.86
Our Price: $56.84
In Stock
Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. T-One connector plugs directly into OEM tow package harness - no cutting, splicing or tapping required ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Designed for use with a factory tow package Compatible with 5-pole, 6-pole and
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Tekonsha
  • Visible
  • Plug-In
  • 4 Flat
  • Powered Converter
  • Factory Tow Package

Replacement Custom Multi-Tow 7-Way and 4-Way Trailer Connectors

Retail: $74.27
Our Price: $41.94
In Stock
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Hopkins
  • Plug-In
  • 7 Blade
  • 4 Flat
  • No Converter
  • No Tow Package

Adapter 4-Pole to 7-Pole and 4-Pole - 37185

Retail: $59.27
Our Price: $55.83
In Stock
Adapter converts from 4 pole wiring on vehicle to 7-pole round plug and 4-pole flat. Additional wire leads for brake, power and accessory.
  • Wiring Adapters
  • Hopkins
  • 7 Blade to 4 Flat
  • Universal Fit

Hopkins Multi-Tow 7-Way Blade and 4-Way Flat Trailer Connector - Chevrolet/GMC

Our Price: $52.72
This trailer connector provides multiple towing options for your vehicle without a factory tow package. It includes 7-way, RV-style and 4-way flat sockets, and it connects to your truck's bare ...
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Hopkins
  • Plug-In
  • 4 Flat
  • 7 Blade
  • No Converter
  • No Tow Package

TowSmart 4-Wire Y-Harness Connector - Trailer End - 25' Ground

Retail: $19.99
Our Price: $13.72
In Stock
You're rewiring an old trailer and want to do it right. This 25-foot Y-harness lays in smooth, splitting left and right so you don't need jumper wires. Dual ground lines keep the lights steady. Splice it in, test it, and you are ready to go.
  • Trailer Connectors
  • Trailer End Connector
  • TowSmart
  • 4 Flat

TowSmart Plug-In Trailer Connector Adapter w/ Wire Tester - 4-Way Flat to 7-Blade

Retail: $14.99
Our Price: $13.81
In Stock
You're lining up the trailer in the driveway when you realize the plug doesn't match. No time to rewire. You grab the adapter, plug it in, and the lights fire up. Quick fix, solid connection, and you're back on schedule. towing. Weather-Resistant Housing: Helps protect against moisture and road grime. Secure Connection: Keeps trailer wiring locked in and stable during travel. Features to know about Test and Tow With
  • Wiring Adapters
  • TowSmart
  • 4 Flat to 7 Blade
  • Universal Fit

Hopkins Endurance Multi-Tow 7-Way RV and 4-Way Flat Trailer Connector - Vehicle End

Our Price: $33.78
In Stock
This 7- and 4-pole trailer connector eliminates the need for an adapter and allows you to tow a trailer with either a 7- or 4-pole plug. Socket connects to your vehicle's OEM wiring system.
  • Trailer Hitch Wiring
  • Vehicle End Connector
  • Hopkins
  • Visible
  • 7 Blade
  • 4 Flat