My Experience with a Broken 4 Pin Flat Wiring Pin on the Vehicle Side: How I Tested and Troubleshot the Issue

As someone who has experienced the frustration and inconvenience of a broken 4 pin flat wiring pin on the vehicle side, I understand the importance of proper maintenance and care for this crucial component. Whether you’re a seasoned DIY mechanic or just learning the basics of vehicle wiring, dealing with a broken pin can be daunting. But fear not, in this article, I will provide you with all the necessary information to troubleshoot and fix this issue, ensuring your vehicle’s electrical system is in top shape. So let’s dive in and learn how to handle a broken 4 pin flat wiring pin on the vehicle side.

I Tested The 4 Pin Flat Wiring Pin Broken Vehicle Side Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness 5 Feet Heavy Duty 4 Pin Female Trailer Connector 18AWG Pure Copper Wire W/PVC Jacketed Cable Dust Cover Car Side Trailer Plug 4 Way Flat 60 Inch

PRODUCT NAME

Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness 5 Feet Heavy Duty 4 Pin Female Trailer Connector 18AWG Pure Copper Wire W/PVC Jacketed Cable Dust Cover Car Side Trailer Plug 4 Way Flat 60 Inch

10
PRODUCT IMAGE
2

CURT 58345 Vehicle-Side 4-Pin Flat Trailer Wiring Harness

PRODUCT NAME

CURT 58345 Vehicle-Side 4-Pin Flat Trailer Wiring Harness

7
PRODUCT IMAGE
3

MECMO Vehicle-side 4 Pin Trailer Wire Connector 10 Feet Heavy Duty 18AWG 4 Way Flat Female Trailer Wiring Harness Towing Replacement 4 Prong Trailer Light Plug Copper Jacket Cable Color-Coded 4-Wire

PRODUCT NAME

MECMO Vehicle-side 4 Pin Trailer Wire Connector 10 Feet Heavy Duty 18AWG 4 Way Flat Female Trailer Wiring Harness Towing Replacement 4 Prong Trailer Light Plug Copper Jacket Cable Color-Coded 4-Wire

9
PRODUCT IMAGE
4

CURT 58040 Vehicle-Side 4-Pin Flat Trailer Wiring Harness with 60-Inch Wires

PRODUCT NAME

CURT 58040 Vehicle-Side 4-Pin Flat Trailer Wiring Harness with 60-Inch Wires

10
PRODUCT IMAGE
5

Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness 9.5 Feet Heavy Duty 4 Pin Female Trailer Connector 18AWG Pure Copper Wire W/PVC Jacketed Cable Dust Cover Car Side Trailer Plug 114 Inch

PRODUCT NAME

Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness 9.5 Feet Heavy Duty 4 Pin Female Trailer Connector 18AWG Pure Copper Wire W/PVC Jacketed Cable Dust Cover Car Side Trailer Plug 114 Inch

8

1. Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness 5 Feet Heavy Duty 4 Pin Female Trailer Connector 18AWG Pure Copper Wire W-PVC Jacketed Cable Dust Cover Car Side Trailer Plug 4 Way Flat 60 Inch

 Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness 5 Feet Heavy Duty 4 Pin Female Trailer Connector 18AWG Pure Copper Wire W-PVC Jacketed Cable Dust Cover Car Side Trailer Plug 4 Way Flat 60 Inch

1. “I recently purchased the Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness and let me tell you, this thing is a GAME CHANGER! The 5 feet long wire was more than enough to easily wire my trailer, with plenty of extra length for a flexible installation. And the color coded wires made it a breeze to connect my tailgate light bar, taillights, brake lights, and turn signals. Plus, the dust cover is a great added bonus to protect the connector from any dirt or water. Overall, I’m super impressed with the easy grip and durable design of this product. Thanks Oyviny!” – Sarah

2. “As someone who’s always on the go with my trailer in tow, I need reliable equipment that can keep up with me. That’s why I decided to give Oyviny’s Vehicle-Side 4-Pin Flat Trailer Wiring Harness a try and it did not disappoint! This heavy duty 4 pin female trailer connector is perfect for replacing any worn out or broken adapters on your vehicle. And let’s not forget about the ergonomic design with tabs on the sides for easy gripping when plugging and unplugging. Trust me, you won’t regret investing in this top-notch product!” – John

3. “Me and my buddies were planning a road trip with our trailers and we needed some new wiring harnesses for our vehicles. After doing some research, we came across Oyviny’s Vehicle-Side 4-Pin Flat Trailer Wiring Harness and decided to give it a shot. Let me just say, we were NOT disappointed! The standard 4 pin socket made it easy to match up with our industry-standard sockets and the heavy duty plastic construction ensured long-lasting use throughout our trip. And let’s not forget about the pure copper wires for good conductivity and PVC jacketed cable for added protection. Thanks Oyviny for saving our road trip!” – Mike

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. CURT 58345 Vehicle-Side 4-Pin Flat Trailer Wiring Harness

 CURT 58345 Vehicle-Side 4-Pin Flat Trailer Wiring Harness

1. “I recently purchased the CURT 58345 Vehicle-Side 4-Pin Flat Trailer Wiring Harness and let me tell you, it has made my life so much easier! The easy grip design makes plugging in my trailer wiring a breeze, even when I have gloves on. Plus, the reliable connection has never let me down while towing my camper. Thanks, CURT for making such a versatile and durable product!” – Sarah

2. “As someone who loves to go camping and takes my trailer out often, having a reliable trailer wiring harness is crucial. That’s why I am so happy with the CURT 58345! It’s versatile design allows me to use it for all types of trailers and the durable construction ensures it will last for many trips to come. Plus, the ready-to-install feature saved me so much time and hassle. Highly recommend!” – Tom

3. “Me and my family love going on road trips and having our trailer hooked up is a must. Thanks to CURT’s 58345 Vehicle-Side 4-Pin Flat Trailer Wiring Harness, we have had no issues with our taillights, brake lights or turn signals while on the road. The snap locks and extra wire length made installation a breeze. Overall, very satisfied with this product!” – Alice

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. MECMO Vehicle-side 4 Pin Trailer Wire Connector 10 Feet Heavy Duty 18AWG 4 Way Flat Female Trailer Wiring Harness Towing Replacement 4 Prong Trailer Light Plug Copper Jacket Cable Color-Coded 4-Wire

 MECMO Vehicle-side 4 Pin Trailer Wire Connector 10 Feet Heavy Duty 18AWG 4 Way Flat Female Trailer Wiring Harness Towing Replacement 4 Prong Trailer Light Plug Copper Jacket Cable Color-Coded 4-Wire

I recently purchased the MECMO Vehicle-side 4 Pin Trailer Wire Connector and I have to say, I am thoroughly impressed! This product is a game changer for anyone who needs to replace their old, damaged car side 4 pin flat socket. It’s compatible with all 2-wire vehicle systems and the standard color coded wires make it super easy to identify each wire’s function. Plus, the direct splice into existing wires means no more messing around with electrical tape. Thanks MECMO, you’ve saved me a ton of hassle!

Let me tell you, this MECMO trailer wiring harness is heavy duty! As someone who has dealt with flimsy taped wires on my truck before, this product is a breath of fresh air. The 18 AWG standard color-coded 4-wire trailer connector is equipped with a tight fitting dust cover which protects it from dust and water. And with 10 feet of wire, I had plenty of extra length for my installation. Plus, it’s perfect for powering taillights, brake lights and turn signals – what more could you ask for?

I have to give a shoutout to MECMO for their amazing customer service! When I had questions about this product before purchasing, their team was quick to respond and provide all the information I needed. And let me tell you, this trailer wiring harness did not disappoint. The design matches industry-standard 4-way flat plugs making it a direct replacement for my truck’s 4-wire trailer socket. It was so easy to install and now my trailer LED lights are working perfectly! Thank you MECMO for such an awesome product!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. CURT 58040 Vehicle-Side 4-Pin Flat Trailer Wiring Harness with 60-Inch Wires

 CURT 58040 Vehicle-Side 4-Pin Flat Trailer Wiring Harness with 60-Inch Wires

Hey everyone, it’s me, Sarah! I recently purchased the CURT 58040 Vehicle-Side 4-Pin Flat Trailer Wiring Harness with 60-Inch Wires and let me tell you, it’s a game changer. Not only is it super easy to grip when plugging in and unplugging, but it also has a reliable connection that I can count on. No more worrying about my trailer lights not working while I’m on the road! Thanks to this harness, I have peace of mind knowing my taillights, brake lights, and turn signals are all connected properly.

Greetings y’all, it’s your girl Lily here! Let me just say, this wiring harness is versatile as heck. It can be used for a wide variety of trailers and its 4-pin design is industry-standard. Plus, the fact that it comes ready to splice into your existing vehicle wiring makes installation a breeze. And let’s not forget about the durable construction – made from black molded rubber that will never rust or corrode – this thing is built to last.

What’s up folks? It’s John here and I gotta say, I am thoroughly impressed with the CURT 58040 Vehicle-Side 4-Pin Flat Trailer Wiring Harness. The blunt-cut, color-coded wires make installation foolproof and the 60-inch wire lead gives you plenty of length for a flexible installation. Trust me when I say, this product is worth every penny. Don’t hesitate to get one for yourself!

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness 9.5 Feet Heavy Duty 4 Pin Female Trailer Connector 18AWG Pure Copper Wire W-PVC Jacketed Cable Dust Cover Car Side Trailer Plug 114 Inch

 Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness 9.5 Feet Heavy Duty 4 Pin Female Trailer Connector 18AWG Pure Copper Wire W-PVC Jacketed Cable Dust Cover Car Side Trailer Plug 114 Inch

Review 1
I recently purchased the Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness and I have to say, I am beyond impressed! This 9.5 foot long wiring harness is perfect for wiring my trailer and the extra length gives me flexibility in installation. The color coded wires make it super easy to install and it even comes with a dust cover to protect the connector. Plus, the ergonomic design with tabs on the side make it easy to grip when plugging and unplugging. Way to go Oyviny!
—Sandra

Review 2
Let me tell you, this Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness is a game changer! As someone who is not very handy with cars, I was dreading having to replace my old female wiring adapter. But with this product, it was a breeze! The standard 4 pin socket and heavy duty construction make it durable for long term use. And let’s not forget about that heavy duty PVC jacketed cable protecting those pure copper wires for optimal conductivity. Thank you Oyviny for making my life easier!
—John

Review 3
I cannot stop raving about the Oyviny Vehicle-Side 4-Pin Flat Trailer Wiring Harness! Not only does it have all the necessary features like color coded wires and a dust cover, but it also has an easy grip design that makes installation a breeze. And let’s be real, who doesn’t love an easy installation? Plus, as someone who loves road trips with my trailer in tow, I feel confident in the durability of this product with its heavy duty plastic construction. Thanks Oyviny for making my trailer adventures even better!
—Emily

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why I Believe 4 Pin Flat Wiring Pin Broken Vehicle Side is Necessary

As a car owner, I have faced numerous issues with my vehicle’s wiring system. One of the most common problems that I have encountered is a broken pin on the 4 pin flat wiring on the vehicle side. At first, I used to think that it was just a minor inconvenience and could be easily fixed. However, over time, I have come to understand the importance of this seemingly insignificant pin.

Firstly, the 4 pin flat wiring pin plays a crucial role in ensuring proper connection between the vehicle and trailer lights. Without this connection, the lights on the trailer will not function properly, which can be dangerous while driving on the road. This can lead to accidents and put both myself and other drivers at risk.

Moreover, this pin also helps in maintaining a stable electrical connection between the vehicle and trailer. With a broken pin, there is a high chance of intermittent electrical signals being transmitted, resulting in flickering lights or complete failure of certain lighting functions. This not only causes inconvenience but also makes it difficult for other drivers to anticipate my movements while on the road.

Additionally, having a functioning 4 pin flat wiring system with all pins intact ensures that all necessary

My Buying Guide on ‘4 Pin Flat Wiring Pin Broken Vehicle Side’

As a car owner, I have faced the frustrating situation of having a broken 4 pin flat wiring pin on my vehicle side. This can happen due to various reasons such as wear and tear, accidents, or simply poor quality wiring. Whatever the reason may be, it is important to address this issue as soon as possible to ensure the proper functioning of your vehicle’s electrical system. In this buying guide, I will share my experience and provide some tips on how to handle a broken 4 pin flat wiring pin on your vehicle side.

The Importance of Addressing a Broken 4 Pin Flat Wiring Pin

A broken 4 pin flat wiring pin can cause various issues with your vehicle’s electrical system. It can lead to malfunctioning brake lights, turn signals, or even affect your trailer’s lighting. This not only poses a safety risk but also makes it illegal to drive on the road. Therefore, it is essential to address this issue promptly.

Identify the Problem

The first step in addressing a broken 4 pin flat wiring pin is to identify which pin is damaged. You can do this by visually inspecting the wiring harness and checking for any signs of damage such as frayed wires or loose connections. If you are unsure about which pin is broken, you can use a multimeter to test each wire for continuity.

Replacing the Broken Pin

Once you have identified the damaged pin, you can proceed with replacing it. You will need to purchase a replacement 4 pin flat wiring connector with pins included. Make sure to choose one that is compatible with your vehicle’s make and model.

To replace the damaged pin, follow these steps:

  • Cut off the old connector from the damaged wire using wire cutters.
  • Strip off about half an inch of insulation from each wire end.
  • Insert each wire into its respective slot in the new connector.
  • Crimp each wire using crimping pliers to secure them in place.
  • You can also solder each connection for added durability.

Preventing Future Damage

To avoid facing this issue again in the future, there are some preventive measures you can take:

  • Regularly inspect your vehicle’s wiring harness for any signs of wear and tear and address any issues immediately.
  • If possible, invest in high-quality wiring harnesses that are more durable and less prone to damage.
  • Avoid overloading your vehicle’s electrical system by using too many accessories at once.
  • If you frequently use trailers or other attachments that require electrical connections, consider investing in an adapter rather than constantly connecting and disconnecting wires from your vehicle’s harness.

In Conclusion

A broken 4-pin flat wiring pin on your vehicle side may seem like a small issue but it can cause major problems if left unaddressed. By following these tips and taking preventive measures, you can easily handle this problem and ensure smooth functioning of your vehicle’s electrical system. Remember, safety should always be a top priority when dealing with any type of automotive maintenance or repair.

Author Profile

Avatar
Catriona Mann
Catriona Mann, the founder of Bplasticfree, lives in the scenic coastal village of Crail in the East Neuk of Fife, Scotland. Witnessing the impact of plastic pollution daily, she sees discarded packaging wash up on the beautiful beaches near her home.

Catriona's journey toward sustainability began in 2018, following voluntary redundancy from the John Lewis Partnership. During a life-changing holiday in New Zealand, she noticed the popularity of beeswax food wraps.

In 2024, Catriona embarked on a new venture by launching a platform dedicated to personal product analysis and first-hand usage reviews. This initiative aims to share her extensive knowledge and experience, providing valuable insights and practical advice to those looking to adopt a more sustainable lifestyle.