This tester helps you to quickly identify problems in your trailerwiring. It tests the left turn, right turn, tail/marker, brake and backup circuits to indicate the level of current in each circuit ... and 6-pole connectors 1-Year limited warranty This diagram illustrates the error codes that the trailertester will display if it detects faults in the currents of your trailerwiring.
You're wiring up a trailer and need to know it's done right. This 7-way plug lights up to show which signals are live the second you connect. You crimp it, test it, and roll out knowing ... Highlights 7-Blade Connector: Standard trailer-end plug for lights, brakes, and power. Built-In LED Tester: Confirms active signals during hookup. Screw Terminals: Accepts blunt-cut wires for easy
The trailer lights are flickering again. You've replaced bulbs, checked grounds, and still no luck. Time to swap the plug. This 4-way flat connector comes with a built-in tester and 24 inches of ... Highlights 4-Way Flat Plug: Standard trailer-end connector. 24" Bonded Wire Lead: 18-gauge wire for stop, turn, and taillights. Built-In WireTester: Lets you verify light function during
You're rewiring a trailer from scratch or cleaning up a mess of splices. This 7-way gives you a fresh cable, sealed jacket, and built-in test lights. You wire it once, plug it in, and know its ... Highlights 7-Blade Connector: Standard plug for trailer lights, brakes, and 12V power. LED Tester Built In: Lights confirm signal function during hookup. Jacketed Cable: Sealed 72" wiring
You're hooking up the trailer and the lights are dead. Could be the truck, could be the plug. This harness tells you fast. Built-in LEDs show what's live, and the grip makes it easy to ... Highlights 4-Way Flat Connector: Standard trailer-end wiring harness. Built-In LED Tester: Confirms active signals during hookup. Ergo Grip Handle: Makes connecting and disconnecting easier
You're sorting out a trailer light issue and don't want to rip everything apart. This loop lets you test wiring fast. Plug it in, check the LEDs, and see what's working. Saves time and ... Highlights 4-Way Flat Loop: Connects trailer and vehicle wiring or serves as a test lead. Built-In LED Tester: Lights indicate active circuits when plugged into vehicle. 12" Length: Short
Trailer Connectors
Trailer and Vehicle End Connector
TowSmart
4 Flat
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.
... verify power. Splices into your trailer's wiring. Labeled for each function on your vehicle Simple installation - hardwire to existing trailerwiring Corrosion-resistant terminals are long-lasting Specs: Ring inner diameter: 1" Ring outer diameter
4-1/2" x 5-3/8" Square trailer tail light is submersible. Integrated LEDs indicate if there's a fault in your trailerwiring. For trailers less than 80" wide. Includes ... makes it easy to diagnose faults in your trailerwiring. The Smart Light has 3 separate LEDs on the side of the unit that act as test lights. These LEDs allow you to see if the tail light is receiving
4-1/2" x 5-3/8" Square trailer tail light is submersible. Integrated LEDs indicate if there's a fault in your trailerwiring. For trailers more than 80" wide. Includes ... Smart Light makes it easy to diagnose faults in your trailerwiring. The Smart Light has 3 separate LEDs on the side of the unit that act as test lights. These LEDs allow you to see if the tail light is
You're chasing a light issue with no clue if it's the truck or trailer. You plug in the tester, hit the blinkers, and the LEDs show what's live. No guesswork. Just answers before you ... TrailerWiring This compact plug-in tester helps you verify that your tow vehicles 4-way flat connector is working correctly. Plug it in, activate the lights in the cab, and the built-in LEDs will light up
Circuit tester plugs into your 4-way flat trailerwiring 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
From under-dash tangles to trailerwiring headaches, this circuit tester helps you zero in on electrical issues fast. It hooks on, lights up, and powers through the job without slowing you down.: Electrical systems: 6V and 12V DC Compatible with cars, trucks, trailers, and motorcycles Tester Type: Wire-piercing molded hook probe Test Lead: Length: 4 feet Insulated, oil and heat-resistant cord Lighting
This Brophy electrical tester works for both 4- and 5- way flat trailerwiring 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
Replacement tester for Hopkins Tow Doctor Trailer End Test Unit (HM50928) Allows one person to check that trailerwiring and functions are working correctly Tests all trailer functions: right turn
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
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
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
You're wiring up the trailer and want it done right the first time. This 4-way flat connector gives you what you need: solid connections for stop, turn, and taillights. No guesswork. Just splice ... Highlights Quick-Connect Wiring: 4-way flat connector with 48" of bonded wire. Essential Lighting Functions: Supports stop, turn, and taillights. Plug-and-Go Setup: Includes LED tester and
4-1/2" x 5-3/8" Square trailer tail light is submersible. Integrated LEDs indicate if there's a fault in your trailerwiring. For trailers less than 80" wide. Includes ... Light makes it easy to diagnose faults in your trailerwiring. The Smart Light has 3 separate LEDs on the side of the unit that act as test lights. These LEDs allow you to see if the tail light is
4-1/2" x 5-3/8" Square trailer tail light is submersible. Integrated LEDs indicate if there's a fault in your trailerwiring. For trailers more than 80" wide. Includes ... Connection The Hopkins Smart Light makes it easy to diagnose faults in your trailerwiring. The Smart Light has 3 separate LEDs on the side of the unit that act as test lights. These LEDs allow you to see if
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
The LED test lights on this molded, 7-way, RV-style, trailer-end connector confirm connectivity between your trailer and vehicle for simple troubleshooting. Durable cable covering resists damage. connected Molded cable sleeving protects wires Durable covering is insulated and corrosion-resistant Simple installation Hardwire to existing trailerwiring Specs: Cable length: 8' Wiring configuration
Quickly check circuits and wire function with this Performance Tool 6 to 12V tester. Designed for automotive electrical systems, it features an insulated piercing probe and an alligator-clip lead for ... Ideal for diagnosing automotive wiring, fuses, and electrical functions Specs: Application: Automotive 6V and 12V electrical systems Tester type: Piercing probe circuit tester Test lead: Integrated with
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
Filters
