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Curt 7-Way to RV Socket LED Circuit Tester - Vehicle End

Retail: $30.42
Our Price: $19.90
In Stock
This circuit tester plugs into the 7-way connector on your vehicle. LED lights indicate which functions (brake, turn, tail, stop, reverse, electric brakes, and 12V) are properly working. Color-coded ...
Features: 7-Way connector tester plugs into your vehicle's wiring harness to confirm your lights are functioning Tests tail lights, brake lights, turn signals, reverse lights, electric brakes
  • Testers
  • Circuit Tester
  • Tow Function Tester
  • CURT

Hopkins Tow Doctor Trailer End Test Unit

Retail: $637.69
Our Price: $485.86
In Stock
auxiliary power Trailer lights illuminate and LED bulbs light on the tester to show function operation Adapts to 4-Flat, 6-Pole Round, or 7-Way RV Blade Includes battery terminal clips Amperage meter shows
  • Testers
  • Tow Function Tester
  • Hopkins

Curt LED 4-Way Flat Connector (Vehicle End) Tester

Retail: $19.31
Our Price: $7.21
In Stock
Curt LED 4-Way Flat Connector Tester This circuit tester plugs into the four-way trailer connector on the vehicle. The bright LED lights analyze the trailer connections and indicate which functions
  • Testers
  • Tow Function Tester
  • CURT
  • Black

Hopkins Smart Light Trailer Tail Light w Test Lights - 7 Function - Submersible - Driver's Side

Retail: $50.53
Our Price: $20.90
In Stock
4-1/2" x 5-3/8" Square trailer tail light is submersible. Integrated LEDs indicate if there's a fault in your trailer wiring. For trailers less than 80" wide. Includes ...
Features: Trailer light serves 7 functions Stop light Tail light Turn signal Side marker Side reflex reflector Rear reflex reflector License plate light Built-in test lights let you troubleshoot Tail
  • Tail Lights
  • License Plate
  • Rear Reflector
  • Side Marker
  • Side Reflector
  • Stop/Turn/Tail
  • Hopkins
  • Red
  • 4-1/2L x 5-3/8W Inch
  • Submersible Lights
  • Square
  • Surface Mount

Hopkins Smart Light Trailer Tail Light w Testers - 7 Function - Submersible - Passenger's Side

Our Price: $21.15
In Stock
4-1/2" x 5-3/8" Square trailer tail light is submersible. Integrated LEDs indicate if there's a fault in your trailer wiring. For trailers more than 80" wide. Includes ...
Features: Trailer light serves 7 functions Stop light Tail light Turn signal Side marker Side reflex reflector Rear clearance Rear reflex reflector Built-in test lights let you troubleshoot Tail and
  • Tail Lights
  • License Plate
  • Rear Reflector
  • Side Marker
  • Side Reflector
  • Stop/Turn/Tail
  • Hopkins
  • Red
  • 4-1/2L x 5-3/8W Inch
  • Submersible Lights
  • Square
  • Surface Mount

Hopkins Smart Light Trailer Tail Light w Testers - 6 Function - Submersible - Passenger's Side

Our Price: $19.80
In Stock
4-1/2" x 5-3/8" Square trailer tail light is submersible. Integrated LEDs indicate if there's a fault in your trailer wiring. For trailers less than 80" wide. Includes ...
Features: Trailer light serves 6 functions Stop light Tail light Turn signal Side marker Side reflex reflector Rear reflex reflector Built-in test lights let you troubleshoot Tail and stop/turn LEDs
  • Tail Lights
  • Rear Reflector
  • Side Marker
  • Side Reflector
  • Stop/Turn/Tail
  • Hopkins
  • Red
  • 4-1/2L x 5-3/8W Inch
  • Submersible Lights
  • Square
  • Surface Mount

Hopkins Smart Light Trailer Tail Light w Test Lights - 8 Function - Submersible - Driver's Side

Our Price: $23.46
4-1/2" x 5-3/8" Square trailer tail light is submersible. Integrated LEDs indicate if there's a fault in your trailer wiring. For trailers more than 80" wide. Includes ...
; respectively) are the testers for the stop/turn and tail light functions. If both of these LEDs light up, and the trailer light illuminates as well, then everything is working correctly and you're ready to
  • Tail Lights
  • License Plate
  • Rear Clearance
  • Rear Reflector
  • Side Marker
  • Side Reflector
  • Stop/Turn/Tail
  • Hopkins
  • Red
  • 4-1/2L x 5-3/8W Inch
  • Submersible Lights
  • Square
  • Surface Mount

Hopkins Endurance Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit

Retail: $114.29
Our Price: $83.87
The built-in tester on the 4-way flat in this kit lets you easily troubleshoot. Great for setups with LED or incandescent bulbs, this kit converts your vehicle's lighting system to match your ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Ensures
  • Trailer Connectors
  • Vehicle End Connector
  • Hopkins
  • 4 Flat
  • 6 - 10 Feet Long

Tekonsha Trailer Wiring Circuit Tester

Retail: $690.99
Our Price: $434.53
In Stock
This tester helps you to quickly identify problems in your trailer wiring. It tests the left turn, right turn, tail/marker, brake and backup circuits to indicate the level of current in each circuit ...
Features: Helps to quickly identify problems in your trailer wiring Tests the left turn, right turn, tail/marker, brake and reverse light circuits on the trailer Works with incandescent and LED
  • Testers
  • Circuit Tester
  • Tekonsha

Hopkins Endurance Easy-Pull 4-Way Flat Connector w/ 48" Harness and LED Tester

Retail: $20.60
Our Price: $10.68
In Stock
Built-in LEDs on this 4-way flat connector help you troubleshoot problems. The large grip ring provides the leverage you need to easily disconnect it from your trailer connector without damaging the ...
connector is receiving power from your tow vehicle. Just plug the connector into the 4-way flat on your trailer. No separate circuit testers are needed. Activate each function on your vehicle and a red light
  • Trailer Connectors
  • Vehicle End Connector
  • Hopkins
  • 4 Flat
  • 0 - 5 Feet Long

Replacement Tow Doctor Tester

Retail: $637.69
Our Price: $294.03
In Stock
, left turn, brake, tail, backup lights; electric brakes and auxiliary power Trailer lights illuminate and LED bulbs light on the tester to show function operation Adapts to 4-Flat, 6-Pole Round, or 7-Way
  • Testers
  • Tow Function Tester
  • Hopkins

Tekonsha Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit

Our Price: $116.28
In Stock
Great for cars and trailers with either LED or incandescent bulbs, this kit converts your vehicle's lighting system to match your trailer's. It includes a 4-way flat, wire taps, and a power ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Ensures
  • Trailer Hitch Wiring
  • Converter
  • Tekonsha
  • 4 Flat
  • 20 Feet Long
  • Universal Fit

Tekonsha Tail Light Converter with 4-Way Flat Trailer Connector and Install Kit

Our Price: $46.32
In Stock
Great for cars and trailers with either LED or incandescent bulbs, this tail light converter has a 60" 4-way flat harness. Designed for vehicles that have amber turn signals. Includes wire taps ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapaters (sold separately) Ensures
  • Trailer Hitch Wiring
  • Converter
  • Tekonsha
  • 4 Flat
  • 1-1/2 Feet Long
  • Universal Fit

Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit

Our Price: $154.09
In Stock
Great for cars and trailers with either LED or incandescent bulbs, this kit converts your vehicle's lighting system to match your trailer's. It includes a 4-way flat, wire taps, and a power ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Ensures
  • Trailer Hitch Wiring
  • Converter
  • CURT
  • 4 Flat
  • 8 Feet Long
  • Universal Fit

Brophy Circuit Tester for 4-Pole Flat Trailer Connector

Our Price: $15.18
In Stock
Circuit tester plugs into your 4-way flat trailer wiring harness and identifies lighting problems. Labeled LED lights illuminate to show which functions are working properly.Features: Circuit tester plugs into your trailer's wiring harness to check the conductivity of all the circuits between your vehicle and your trailer Quickly identifies lighting problems Labeled
  • Testers
  • Circuit Tester
  • Tow Function Tester
  • Brophy
  • Black

Curt LED 5-Way Flat Circuit Tester - Vehicle End

Our Price: $11.03
In Stock
This circuit tester plugs into the 5-way trailer connector on your vehicle. The bright LED lights indicate which functions (tail lights, brake lights, turn signals, and reverse lights) are working ...
Features: 5-Way connector tester plugs into your vehicle's wiring harness to confirm your lights are functioning Tests tail lights, brake lights, turn signals, and reverse lights Labeled LED
  • Testers
  • Circuit Tester
  • Tow Function Tester
  • CURT

Modulite Circuit Protected Power Converter w/ 5-Way Flat, Hardwire Kit, and Tester

Our Price: $73.51
In Stock
Modulite Protector with Integrated Circuit & Overload Protection, Hardwire Kit and Tester that use a pulse width modulation (PWM); this gives the trailer lights full brightness Double-sided tape for mounting Draws power directly from the tow vehicle battery; uses less than 5 milliamps of the
  • Trailer Hitch Wiring
  • Powered Converter
  • Tekonsha
  • 5 Flat
  • Universal Fit

Hopkins Tail Light Converter with 4-Way Flat Trailer Connector

Retail: $48.60
Our Price: $31.23
In Stock
Great for cars and trailers with either LED or incandescent bulbs, this tail light converter has a 72" 4-way flat harness. Designed for vehicles that have amber turn signals. Installation ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Ensures
  • Trailer Hitch Wiring
  • Converter
  • Hopkins
  • 4 Flat
  • 6 Feet Long
  • Universal Fit

Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit

Our Price: $71.60
In Stock
Built to last, this kit, made with surface-mount technology, converts your vehicle's lighting system to match your trailer's. It includes a 60" 4-way flat harness, wire taps, and a power ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Ensures
  • Trailer Connectors
  • Vehicle End Connector
  • CURT
  • 4 Flat
  • 0 - 5 Feet Long

Curt Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit

Our Price: $78.97
In Stock
Built to last, this kit, made with surface-mount technology, converts your vehicle's lighting system to match your trailer's. It includes a 60" 4-way flat harness, wire taps, and a power ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Ensures
  • Trailer Hitch Wiring
  • Converter
  • CURT
  • 4 Flat
  • Universal Fit

ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit

Our Price: $169.02
In Stock
Install a 4-way trailer connector on your vehicle without cutting or splicing into your wiring. Zero-contact interface sensors identify the current flowing through each wire by simply clamping onto ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Bypasses
  • Trailer Hitch Wiring
  • Converter
  • Tekonsha
  • 4 Flat
  • Universal Fit

Hopkins Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit

Retail: $106.59
Our Price: $71.86
This kit converts your vehicle's lighting system to match that of your trailer's. Includes a 4-way flat, 57" harness, wire taps, and a power wire that pulls power directly from your ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Ensures
  • Trailer Hitch Wiring
  • Converter
  • Hopkins
  • 4 Flat
  • Universal Fit

Hopkins Tail Light Converter with 4-Way Flat Trailer Connector

Retail: $37.22
Our Price: $30.93
In Stock
This tail light converter with a 72" 4-way flat harness converts your vehicle's lighting system to match your trailer's. Designed for vehicles that have amber turn signals. Installation ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Ensures
  • Trailer Hitch Wiring
  • Converter
  • Hopkins
  • 4 Flat
  • 6 Feet Long
  • Universal Fit

Curt Tail Light Converter with 4-Way Flat Trailer Connector

Retail: $45.02
Our Price: $24.94
Built to last, this tail light converter with a 76" 4-way flat harness is made using surface-mount technology. Designed for vehicles that have amber turn signals and incandescent bulbs. Includes ...
Features: Provides a 4-way flat trailer connector at the back of your vehicle to power your trailer's signal lights Compatible with 5-pole, 6-pole, and 7-pole adapters (sold separately) Ensures
  • Trailer Hitch Wiring
  • Powered Converter
  • CURT
  • 4 Flat
  • Universal Fit