The 10 Best 4 Pin Trailer Testers (2022 reviews)

The innovative product of America 4 pin trailer tester is long-lasting, rigid and fits well with your daily usage like a dream. The innovative product of America 4 pin trailer tester is great with great quality and it can for customer service. It allows the jumping of current to a dead circuit for emergency situations, so you can still drive the rig. These elements allow ipa to offer cutting edge solutions, holding true to the company motto "future now.

Most importantly, the innovative product of America 4 pin trailer tester is very quick and it works very well.

Most customers agree that the tester is perfect for troubleshooting trailer wiring. Further, they say that the tester has saved so much time on the road. Also, a few also found that the tester is easy to see and find the issue. With no doubts, this product passed the test and had very satisfied buyers eager to share their experience.

Customers say that getting a wireless trailer light tester, along with tester is useful.

Top Customer Quotes:

Winged grip for easy installation and removal.
This is for commercial trailer light plugs.
This is a must have for tractor/trailer mechanics.
This works with 12 volt power systems.

Best For Everything: Iit 4 Pin Trailer Tester

Buy on Amazon

If you often find yourself confused about the appropriate and satisfactory tester, Iit 4 Pin Trailer Tester should be your first option for buying. The iit 4 pin trailer tester used for a rv, It is black and has a convenient design. Iit 7 blade & 4 pin tester checks if the 12v power from the tow vehicle is reaching the trailer's tow plug. Further, this has a typical lifetime of 10+ years.

The tester makes for easy fix, it is accurate and has a great design. Lastly, the iit 4 pin trailer tester works well, is used for power supply, It does its job and has a durable design.

Most buyers agree that the tester works well for the 2021 honda pilot elite. In addition, they say that the tester is great for everything except brake wire. Further, a few strongly agree that the tester works well with the 7 blade and 4 flat on vehicles for testing. In short, at the price, they believe that they got a steal of a deal with it.

Customers discovered that getting a 4 pin trailer tester, along with tester is useful.

Top Customer Quotes:

Checks if the vehicle's tow circuit is properly configured.
This is a great tool for the truck box.
This is controlled by a seperate fuse.
This is the pickups being used that needed fuses and relays.

Best For Quick Test: Unified Marine 4 Pin Trailer Tester

Buy on Amazon

The Unified Marine 4 Pin Trailer Tester is capable of outshining several other testers featured in this list in overall features for the price point. The unified marine 4 pin trailer tester is great for low cost, It comes at a low price and has a solid design. Plug tester into the vehicle’s conventional 4-prong flat towing plug. Also, the tester allows for easy test, it is very good and has a perfect design.

The tester is very handy, has a led display, it is black and has a great design. Moreover, it provides great value, is compact, it is used for good buying and has an excellent design. Finally, the unified marine 4 pin trailer tester works as expected and it is easy to read.

Almost all buyers found that the tester is a must-have for simple and quick testing that everything is wired correctly. And, they say that the tester is better than guess and by gosh. In conclusion, many customers have used the tester for more than a few months without any issues, and it shows no sign of giving up.

Customers discovered that getting a 4 pin trailer tester, with this tester made their life much easier.

Top Customer Quotes:

This is a rather simple device, and it does.
This comes with a bright led display, it saves time and has professional design.
This is present, circuit's green light will glow.

Best For Long Lasting Construction: Online Led Circuit Tester

Buy on Amazon

The Online Led Circuit Tester's material feels more premium than its price would suggest. The online led circuit tester is used for trailer lighting connection, is self - explanatory, it is accurate and has a compact design. Take this small lightweight tester wherever you go and drive with confidence. Further, it provides great value, is designed for superior performance, It is great with a low price and has a convenient compact design.

Most importantly, the online led circuit tester is designed to be weather, corrosion, and impact resistant for years of reliable service.

Most customers quickly discovered that the tester made them for ford products. Further, they strongly agree that the tester works well, no issues at all. Moreover, a few also found that this tool will easily identify if the problem is with the towed vehicle or with the trailer itself.

Top Customer Quotes:

This works as expected, is yellow, it saves money and has a simple design.
This is great for checking running and turn signal lights on a towed vehicle.
The tester is OK to try it on another vehicle, too.
This does check the status of the boat connection, but it could be better.

Best For Checking Connections: Online Led 4 Pin Trailer Tester

Buy on Amazon

The Online Led 4 Pin Trailer Tester's high-end materials makes sure that it ages well with use. The online led 4 pintrailer tester is very handy, It is designed for superior performance and has a great design. Manufacturer says: Our easy-to-use circuit tester helps you quickly identify and fix problems with your trailer light circuit. In addition, it is designed to be weather, corrosion, and impact resistant for years of reliable service.

The tester is easy to put away. Most importantly, the online led 4pin trailer tester is manufactured to exacting specifications, This circuit tester is built to last.

Most customers opine that the tester is perfect to test the connection on the boat trailer. And, they strongly agree that the tester is great for checking connections. With no doubts, this tester passed the test and had very satisfied buyers eager to share their experience.

Few customers bought 4 pin trailer tester, along with the tester.

Why We Like This:

Take this small lightweight tester wherever you go and drive with confidence.
This saves time, it is used for long - lasting construction and has an excellent design.
The two-sided design means you can leave it plugged in.
Test any 5-pin trailer even if you are in the middle of nowhere.

Best With Fast Shipping: Mictuning 4 Pin Trailer Tester

Buy on Amazon

The Mictuning 4 Pin Trailer Tester is the most reliable tester on the market today. The mictuning 4 pin trailer tester is good for small size, It is great for right turns and has a functional design. Clear and obvious labeling of each light enables you quickly to identify the circuits that are in normal or faulty working condition. This 7 way blade trailer wiring tester tests for tail lights, brake lights, reverse lights, turn signals, brakes and auxiliary power.

The tester is sturdy, is great for fast shipping, it works very well and has a durable design. And, the tester is compatible with standard 7-way blade trailer sockets. Most importantly, the mictuning 4 pin trailertester features a label for each led, indicating the intended function.

Almost all customers agree that the tester is a great tool to have to set up and test trailer lights. Moreover, they say that the tester is great to make sure everything is in working order coming from the truck. And, they also found that the tester is well made ease of use, plugging in lights light up as they should.

Customers found that buying a 4 pin trailer tester, along with tester is useful.

Top Customer Quotes:

This can only test one circuit at a time.
This is easy to use, quick to facilitate diagnosis, and troubleshoot in the correct direction.
This features 6 bright led indicators.
Mictuning trailer connector tester helps you confirm proper vehicle and trailer electrical function.

Best For First Time: Curt 4 Pin Trailer Tester

Buy on Amazon

If you want nothing but a tester that is reliable, this Curt 4 Pin Trailer Tester is certainly a wise investment. The curt 4 pin trailer tester works perfectly, it is compact and has a safe design. The Manufacturer says: We also offer bike racks, cargo bags, cargo nets and ratchet straps for additional item security. This particular electrical tester fits a 4 - way flat socket and comes with quality plastic construction.

The tester came with led lights to be bright and long-lasting. Moreover, the tester is great for its compact size, It works as advertised and has a durable design. Above all, the curt 4pin trailer tester is very handy, works very well, it saves time and has an integrated design.

Almost all customers agree that the tester is easy to construct correctly. Moreover, a few also found that the tester is great to have in the truck at all times. Moreover, they strongly agree that the curt 58261 4 - pintrailer wiring tester is easy to use and durable. To sum up, buyers found this to be one of the best tester for daily purposes.

Why We Like This:

This is ideal for first time, it is convenient to use and has a convenient design.
This is very easy, works as expected, It is black and has a perfect design.
This works well. comes with correct wiring, it is super handy and has a solid design.
Part of towing responsibly is making sure your trailer lights are working properly.

Best For Worth The Money: Ipa Tools 4 Pin Trailer Tester

Buy on Amazon

The Ipa Tools 4 Pin Trailer Tester's material feels more premium than its price would suggest. The ipa tools 4 pin trailer tester has cleaned contacts and it is great for right turn. Founder and president Peter Vinci has been an electro-mechanical engineer since 1979, and for over 30 years has been thriving in tool innovation throughout the industry. These elements allow ipa to offer cutting edge solutions, holding true to the company motto "future now.

The tester is located in Woodstock, ny, and features on-site soldering, cnc, welding, fabrication and mechanical production lines which are supported by a team of electrical and mechanical engineers along with a full - service sales and marketing department. Also, it has restored connectors and it works as advertised. Finally, the ipa tools 4 pin trailer tester can be used as a pin-wear gauge.

Almost all buyers found that the tester is easy to use, and a lifesaver on the road. In addition, they strongly agree that the tester works well and is great for cleaning and keeping connections in working order. Also, a few say that the tester does a great job of removing oxidation. In short, at the price, they believe that they got a steal of a deal with it.

Why We Like This:

Quickly tests light circuits; cleans and repairs truck and trailer connectors.
This is used for trailer connectors, is industrial and it is very good.
Promotes safety and reduces road hazards.
Preventative maintenance tool that extends harness life, promotes safety, and limits road hazards.

Best For Test Light: Ipa 4 Pin Trailer Tester

Buy on Amazon

Best part: Ipa 4 Pin Trailer Tester costs comparatively little and it is available to ship in 24 hours. The ipa 4 pin trailertester allows for proper verification of wiring configuration, ground integrity, short circuit and overload conditions, along with electric brake operation and turn signal simulation. The smart mutt (7-round pin) with pulsar mode makes trailer testing a one-man operation and allows you to test all trailer electrical systems in a fraction of the time while reducing guesswork that could lead to expensive road calls and citations. Also, it is visual, is multiple, it is for electric brakes and has a great design.

The tester allows observation of slackers to measure and adjust pushrods. And, the tester is great for circuit testing, it is cross and has a durable design. Most importantly, the ipa 4 pin trailer tester allows safe overloaded short circuit repair.

Almost all customers quickly discovered that the tester is a remote controlled diagnostic trailer tester that tests light and abs functions on light duty trailers using 7 spade, 6 round and 4/5 pin harnesses. Also, they also found that the tester is designed to be used with semi-trailers. To sum up, at the price, they believe that they got a steal of a deal with it.

Why We Like This:

Lightweight and portable solution for assessing trailer wiring.
Places a load on the trailer’s electrical circuits to verify proper lighting function.
Power lights; manually, all-on, auto scan, or remote control.
Uickly troubleshoot lighting, air brake and abs systems with the industry’s leading trailer tester.

Best For Cable Testing: Ipa Industrys Leading Trailer Tester

Buy on Amazon

If you often find yourself scrambling for an appropriate and satisfactory tester, IPA, the leading trailer tester, is your solution. The IPA industry leading trailer tester is cross, is multiple, it has power lights and has a portable design. Uickly troubleshoot lighting, air brake and abs systems with the industry’s leading trailer tester. Also, it features an internal battery compartment and an external 12v power port which can be used as a memory saver, test light supply or trickle charge input.

The tester is good for circuit testing and it saves time. Also, the tester is visual, it is water resistant and has a durable design. Most importantly, the IPA industrys leading trailer tester allows safe overloaded short circuit repair.

Why We Like This:

This is good for cable testing and it is portable.
This design is ideal for both on and off-site commercial trailer testing and repairs.
This allows observation of slackers to measure and adjust pushrods.
Access abs blink codes and activates lights by remote control.