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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

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

Retail: $44.96
Our Price: $38.12
In Stock
This circuit tester plugs into the 7-way connector on your truck. LED lights indicate which functions (brake, turn, tail, stop, reverse and 12V) are properly working.Features: 7-way circuit tester 12V power Function Codes: BU: back up or reverse circuit center pole RT: right turn/brake TM: taillights LT: left turn/brake BK: brake controller output 12V: 12-volt
  • Testers
  • Circuit Tester
  • Tow Function Tester
  • Pollak
  • Black

Brophy Circuit Tester for 4-Pole Flat Trailer Connector

Our Price: $15.20
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

Brophy 4- and 5- Way Flat Circuit Tester

Our Price: $23.44
In Stock
This Brophy electrical tester works for both 4- and 5- way flat trailer wiring harnesses.Features: 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 Can be left attached to
  • Testers
  • Circuit Tester
  • Tow Function Tester
  • Brophy
  • Black

Curt 6-Way Round LED Circuit Tester - Vehicle End

Retail: $12.95
Our Price: $8.90
In Stock
This circuit tester plugs into the 6-way connector on your vehicle. LED lights indicate which functions (brake, turn, tail, electric brakes, and 12V) are properly working.Features: 6-Way connector tester plugs into your vehicle's wiring harness to confirm your lights are functioning Tests tail lights, brake lights, turn signals, electric brakes, and auxiliary
  • Testers
  • Circuit Tester
  • Tow Function Tester
  • CURT

Curt LED 5-Way Flat Circuit Tester - Vehicle End

Our Price: $11.62
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

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

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 ...
battery) connected to the trailer charge circuit Includes charger for the internal battery of the trailer tester Works with 7-way trailer connector Adapters (sold separately) allow use with 4-pole, 5-pole
  • Testers
  • Circuit Tester
  • Tekonsha

Hopkins Tow Doctor Vehicle End Test Unit - HM50918

Retail: $366.79
Our Price: $262.80
In Stock
  • Testers
  • Tow Function Tester
  • Hopkins

Hook Probe Circuit Tester

Retail: $25.04
Our Price: $14.94
In Stock
  • Testers
  • Circuit Tester
  • Performance Tool

Cordless Circuit Tester

Retail: $37.85
Our Price: $19.54
In Stock
  • Testers
  • Circuit Tester
  • Performance Tool

Computer Safe Logistic Probe - PTW2991

Retail: $35.19
Our Price: $16.31
In Stock
  • Testers
  • Circuit Tester
  • Performance Tool

LCD Digital Circuit Tester

Retail: $38.72
Our Price: $25.34
In Stock
Features: Economy LCD Circuit Tester with LED back light Ideally used to detect power, voltage, ground, and circuit integrity Surge protected circuitry displays DC voltage from 3V to 48V (±0.3V
  • Testers
  • Circuit Tester
  • Performance Tool

7 Way Trailer Connector Vehicle Tester

Our Price: $22.39
A circuit tester that plugs into the 7-way trailer connector on the vehicle and emulates a trailer. The lights let you know what functions (brake, turn, tail, stop, reverse and 12V) are working ...
Features: 7-way circuit tester 12V power Function Codes: BU: back up or reverse circuit center pole RT: right turn/brake TM: taillights LT: left turn/brake BK: Brake controller output 12V: 12-volt
  • Testers
  • Tow Function Tester
  • Tow Ready
  • Black

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

Retail: $19.31
Our Price: $7.39
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 Endurance Powered Tail Light Converter w/ 4-Way Flat Trailer Connector and Install Kit

Retail: $114.29
Our Price: $83.87
In Stock
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

Replacement Tow Doctor Tester

Retail: $637.69
Our Price: $294.03
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 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

Reese Trailer Connector Adapter w/ LED Circuit Tester and Dust Cover - 7-Pole to 4-Pole or 5-Pole

Retail: $32.29
Our Price: $20.24
In Stock
This adapter lets you quickly convert your 7-way connector for use with a 4-way or 5-way flat trailer-end plug. It includes a circuit tester with red LEDs and a built-in dust cover that protects the ...
Features: Easy-to-use, plastic adapter converts your vehicle's 7-blade, RV-style, vehicle-end connector for use with a 4-wire or 5-wire flat, trailer-end connector Circuit tester with highly
  • Wiring Adapters
  • Multi-Function Adapter
  • Reese
  • 4 Flat
  • 5 Flat
  • 7 Round - Blade

Hopkins Trailing Wiring Installation Kit with Circuit Tester and 4-Way Flat Dust Cover

Retail: $20.99
Our Price: $15.95
In Stock
Ideal for rewiring a trailer, this kit contains a 6-12-V LED circuit tester, connectors, ring terminals, zip-ties, ground screws, and more.Features: Trailer wiring installation kit is ideal for Y-harness and 4-conductor wire installation Includes the basics for rewiring or hardwiring a trailer connector to your trailer (1) 6-12-V LED
  • Tools for Wiring
  • Wiring Kits
  • Hopkins
  • Installation Kit

Hopkins Endurance Flex Trailer Connector Adapter w/ LED Circuit Tester - 7-Pole to 4-Pole or 5-Pole

Retail: $30.90
Our Price: $22.95
In Stock
This adapter lets you use your 7-way, RV-style connector with a 4- or 5-way flat, trailer-end plug. It includes a circuit tester with red LEDs, and the 5" long, flexible wire between the plugs ...
Features: Adapter converts your 7-pole, blade-style, vehicle-end connector to a 4- or 5-wire flat connector Integrated circuit tester with red LEDs lets you know when wiring is functioning properly
  • Wiring Adapters
  • Multi-Function Adapter
  • Hopkins
  • 4 Flat
  • 5 Flat
  • 7 Round - Blade
  • 0 - 5 Feet Long

Hopkins Endurance Flex Trailer Connector Adapter w/ LED Circuit Tester - 6-Pole to 4-Pole

Retail: $37.24
Our Price: $22.80
In Stock
This adapter lets you use your 6-way round connector with a 4-way flat, trailer-end plug. It includes a circuit tester with red LEDs, and the 5" long, flexible wire between the plugs makes for ...
Features: Adapter converts your 6-pole round, vehicle-end connector to a 4-wire flat connector Integrated circuit tester with red LEDs lets you know when wiring is functioning properly Flexible wire
  • Wiring Adapters
  • Single-Function Adapter
  • Hopkins
  • 4 Flat
  • 6 Round
  • 0 - 5 Feet Long

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

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

Our Price: $125.39
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