1. Accessories and Parts
  2. LubriMatic
  3. Wiring
  4. Dielectric Grease
Dielectric Grease for Electrical Connectors, 2 oz.

Dielectric Grease for Electrical Connectors, 2 oz.

Item # 11755
lowest price pledge
Retail:$32.99
Our Price: $11.68
You Save: 65%
Accessories and Parts
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.17 lbs
Quantity: 
In Stock
LubriMatic Dielectric Grease Accessories and Parts - 11755
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
Protect your electrical connections with this specialized formula that combats corrosion from water damage. Electrical Contact Grease comes in a 2 oz. tube. Call 800-298-1624 to order LubriMatic accessories and parts part number 11755 or order online at etrailer.com. Free expert support on all LubriMatic products. Guaranteed Lowest Price and Fastest Shipping for Dielectric Grease for Electrical Connectors, 2 oz.. Accessories and Parts reviews from real customers.
  • All Info
  • Reviews (863)
  • Q & A (1328)
  • Videos (2)
  • Photos
  • Why etrailer?

LubriMatic Accessories and Parts - 11755

  • Wiring
  • Dielectric Grease
  • LubriMatic

Protect your electrical connections with this specialized formula that combats corrosion from water damage. Electrical Contact Grease comes in a 2 oz. tube.


  • Helps prevent electrical failures caused by corrosion and moisture
  • Water resistant formulation sheds moisture and will not wash away
  • Protects bulbs, sockets, t-connector plugs and trailer connectors
  • 2 oz. Bottle
  • Dropping Point: >550 degrees F

Using electrical contact grease increases reliability and the life of the connection by preventing corrosion and sealing the connection.


11755 Lubrimatic Electrical Contact Grease





Video of Dielectric Grease for Electrical Connectors, 2 oz.

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for LubriMatic Electrical Connector Dielectric Grease Review

Hi there, maintenance-oriented haulers today. Today we're going to be taking a look at Librimatic's Dielectric Contact Grease. So we've been experiencing some issues with our travel trailer here. When we plug in, sometimes our lights are working, sometimes they're not. It's a little bit finicky. If we jiggle the connector, it usually works.Most of the time, this is caused by poor contacts inside your connector and that's usually due to corrosion.

You can see here that this connector is actually got some corrosion on it. And the plastic's actually starting to deform because once you get this corrosion on here, it's possible that you can still have contact enough to eliminate your lights and operate your functions. But this corrosion is going to cause extra resistance here, which is going to cause it to build heat. And as it builds up heat, you can see the plastic's deformed due to the excessive heat that it's caused. And eventually over time, that heat is going to cause further damage and fretting onto our connectors here.

And eventually, it's going to get so bad that we're not even going to be able to fix it.So to get on top of this, before it gets that bad, we want to clean out all this corrosion and we want to seal it up to prevent it from happening again. And that's why we're going to be using the Dielectric Grease here. Now there's a lot of different ways you can clean out corrosion. Usually something acidic like vinegar and water mixture works great. Or you can just go to your automotive store and pick up electrical contact cleaner to clean it out.

You can also use a bristle brush to clean it out. But you do want to be careful when using any brushes down here because if you spread those contacts apart, you may spread them apart too far to where they're not going to touch onto the terminals once you plug it in and then you need to replace the pins, potentially the whole connector.So we're just going to spray our contact cleaner in here. And we're using this contact cleaner because it is a quick-dry contact solution. Because we don't want any moisture or anything left behind. This is designed to dry out very rapidly so we don't leave any moisture behind.So we use the contact cleaner.

We still got a little bit of corrosion in there. So we're going to take our bristle brush to clean that up. Now you'll notice I'm not sticking it down in there, we don't want to spread those terminals out. So we're just kind of rubbing it along the top to get that corrosion out of there. A toothbrush works very well as well, if you've got an old one laying around. But if you don't and you need a bristled rush, you can get one just like I got here at etrailer.com. And we're just trying to get all that out of there.Now that all of our contacts have been cleaned up, we're going to take the Dielectric Grease and we're going to apply it generously to all of our pins here. So we want to try to keep out any moisture from getting in there. And we're not just using any grease. We are using dielectric grease because dielectric grease is specifically designed for this application as it does not conduct electricity so we don't have to worry about any of our contacts shorting out between one another. And then it has the other properties that grease has where it coats up the surface and helps keep out moisture, sealing it all in. So now that we've got that done, we're ready to plug it in to our trailer and hit the road. And we don't need to clean any of this up, we can just leave it there. We're trying to seal out moisture and dirt.On the other side here on our truck, it's a good idea to clean these pins out as well. So we don't want to transfer any of the corrosion that may be on these or the other ones, back and forth. And we can also put the dielectric on these pins as well, to help further seal up and protect this side.Now that we've cleaned up each end and got them greased, we can go ahead and plug them together. Now we discussed earlier about how the grease is non-conductive because that's what we want. We don't want any of our pins to be shorting out with the other ones next to it. But that doesn't mean that it's going to cause any issues with the connections between our connector here on our trailer and the one on our truck, because the pins are designed to be a nice tight fit. So when it goes in, we do get metal to metal contact as it pushes that grease out of the way. Now it's when during cleaning, if you do stick something down in there, you can spread those terminals apart. And when you go together, they may not touch that because you have damaged pins. Now to replace the pins as long as everything's okay, our grease is not going to affect us because that terminal is going to have good contact.And it's not only great for the seven poles like we showed you earlier, but it's going to work on all of your trailer connectors, especially ones that are exposed to the elements like this. Keeping them coated is going to help keep corrosion off of them to ensure a longer lasting connection. So your four poles, your five poles, basically anything here on the outside. And it's also highly recommended for you flat towers out there. So your six pole ends and your seven pole where it plugs into your motor home. Keep those all greased up as well, because we don't want any connection issues with our vehicle when we're flat towing it down the road.And while you're at it, don't forget about the lights on your trailer. All these connection points as well are susceptible to corrosion so we can keep all of those clean. And if you have incandescent bulbs on your vehicle, it's recommended to put them on those as well.Pretty much any connector that does not have a weather pack seal, which has a rubberized seal around it. You would want to put this grease on because they have no form of weather protection. And that's what this is doing for us, is providing us with a coat of weather protection.All in all, this is going to be an inexpensive way to keep all of your electrical components operating properly and avoiding expensive wiring repairs down the road. And that completes our look at Lubrimatic's Dielectric Contact Grease.


Customer Reviews

Dielectric Grease for Electrical Connectors, 2 oz. - 11755

Average Customer Rating:  4.8 out of 5 stars   (863 Customer Reviews)

Protect your electrical connections with this specialized formula that combats corrosion from water damage. Electrical Contact Grease comes in a 2 oz. tube.

- 11755
by:

Ordered hitch receiver with wiring for bike rack installation on 2019 Ford Explorer. Everything arrived in less than a week. Crawled under the car with my burly son and finished the installation in about an hour. Toughest part was getting the exhaust hangers off. Didn't have a tool for that. Online installation video was a big help. Hitch frame rubs against right side exhaust hanger, hence the four star rating instead of five. Exhaust still appears to be level and no weird noises, so not an issue. Get the little plug in light tester. It's worth it, then keep it in the glove box. Haven't purchased bike rack yet, but no concerns about the hitch.



- 11755
by:

About a year ago, I purchased a brake controller and parts to install a 7-pin trailer connector on my Ford Edge. The installation all went well and I used the Dielectric Grease to seal the wire connections at the connector. My four-star rating was given simply because I don't know if the grease is working as I hope it is. Time will tell more years down the road. As a side note, I made an additional bracket to enclose both connectors (4-pin & 7-Ping, see photo) to keep the 4-Pin connector from sliding out of place because it was only retained on three sides without my bracket.



- 11755
by:

etrailer video showed how using dielectric contact grease wold be most helpful to make the under bed electric connections as water resistant as possible. I would never have know about it unless I watched the video. Great advice. I am planning to refresh the grease every year.


Comments
The makes your life easier. No hassle connections and easy to disconnect.
Wayne B - 02/03/2021


- 11755
by:

This stuff really works to keep my tow vehicle and toad electrically connected. I used to spend a lot of time cleaning and redoing those troublesome electrical connections especially in wet weather. That is all behind me now. (Pun intended). The tube is strong to reside safely and conveniently in my tool box so it is readily available for future use.



- 11755
by:

We just purchased a 2019 Hyundai Santa Fe as our retirement vehicle for traveling. We wanted to install cargo accessories but the dealer prices were WAY to high. After researching for several days we found etrailer.com. The prices were the best we found and the service was outstanding! We installed a Thule roof rack system that fits flawlessly and allows the panorama sun roof to plenty of roof to operate. The videos made in really easy to install. We also installed a trailer hitch system. The Tekonsha Trailer Wiring kit was also a piece of cake to install. If you're hesitant to work on electrical systems, there's no need to be afraid. It's actually easier than it looks in the video. The Curt Trailer Hitch gave me major headaches. The delivery company banged the box up pretty badly. Apparently it tweaked the hitch just enough so that the holes were misaligned. No problem, after talking me through the installation one more time to be sure it was damaged, they shipped a new unit. The second hitch went in fine. It took a while, and it's not as easy as it looks in the video, but I'm 67 years old I did the installation myself... Overall, I gave five stars because the price match guaranty makes it a wise choice price wise. he videos are a big help during installation. But the real difference is the service. A lot of folks provide good service to make a sale, but etrailer goes the extra distance to provide great service afterwards. That's unique! Thanks etrailer!



- 11755
by:

The connector on my 2010 Chevy was difficult to disconnect from the trailer connection. Now after using this grease. Its smooth and easy to connect and disconnect. Will buy again



- 11755
by:

Did not use. It was suggested on your company’s installation video, but DEFINITELY NOT NEEDED for installation.


Comments
Did not use and there does not seem to be any deficiencies in product performance. I would say this is a product that you are encouraged to purchase, but it is absolutely not necessary.
Bruce - 08/24/2021


- 11755
by:

Used GE dielectrics grease before. This seems to be not as thick. Make big hole so it comes out better. Seems to work. I use it for outdoor electrical connections. Especially batteries in lights and grill igniter.



- 11755
by:

I ordered the Mighty Cord 5th Wheel/gooseneck 7-way wiring harness for my 2018 Ram 3500. The installation was quick and easy. Thank you etrailer.com for the great products, fast shipping, and commitment to making my life easy.



- 11755
by:

One year after install, and I've never experienced an electrical connection issue.



- 11755
by:

Items purchased, Draw-tite trailer hitch and Tekonsha wiring kit for our 2020 Equinox. This was my first encounter with etrailer, and I must say I was impressed. From the initial order placement, I knew where my order was while in route and exactly when it would arrive. I had previously watched the installation videos on both products and they could not have been clearer. Total time from opening boxes, to tools put away was less than 2 hours. All parts are of quality materials and fitment along with reasonable prices. While this may have been my first experience with etrailer, it certainly will not be my last. Thanks to all for making everything go smoothly.



- 11755
by:

Great product, works as expected. Sealed connections on rear trailer lights. Excellent customer service. Shipping progress information very clear.



- 11755
by:

I will never order a trailer hitch from a car dealer. Your videos made it so easy. Everything was what you said it would be, the delivery was even a day early. Thanks



- 11755
by:

Have purchased through this vendor before. Always happy with products and shipping speed. I have them saved in my phone and will continue to use them.



- 11755
by:

Just exactly what the trailer installer said to get and it worked perfectly!



- 11755
by:

Only thing I would change is to have heat shrink connector's instead of regular ones. I cut the cheap ones off and put water tight heat shrink ones on instead.



- 11755
by:

Used on my fifth wheel plug I installed and have had no problems with the connection. Also worked great on a connector I was having intermittent issues with. I would highly recommend this product.



- 11755
by:

Great trailer hitch for a great price! It was easy to install and after a year of towing with it, I've had zero problems. I like the way it looks as well, in fact I plan to order another one for our other vehicle this month!


Comments
Non-probblematic, still loving it!
BARRY B - 11/02/2020


- 11755
by:

Excellent product for preventing corrosion of electrical connectors.



- 11755
by:

a new product for me. Was very easy to use, just squeeze out a small amount ro the electric joint you wish to seal then apply your connecter. I sold the pickup so I caNT TAKE PICTURES OF THE VARIOUS JOINTS IN THE BRAKE CONTERLLER LINE I USED THE Dekectric grease in, sorry.



- 11755
by:

Great Products delivered in a timely manner. This is my second order and exceeded my expectations



- 11755
by:

Outstanding products and informational website! Products shipped fast and the install was very easy with all of the information on the website, in the package and including the videos. Super company!



- 11755
by:

As usual E-trailer delivered a quality product in a timely manner.



- 11755
by:

Bought towing adaptors/wiring parts for a 2001 Dodge Durango (it came from the factory without a tow package) and a 2014 Honda Pilot (came from the factory with a receiver, and only half of the tow wiring harness). I knew a year ago I needed to get these two vehicles ready for a move we’ll be making from TN to SC using a trailer with electric brakes (by August of this year). You have the list of items I purchased. I finally got around to starting the projects. Just finished the 2014 Honda Pilot yesterday. The installation on the Pilot went somewhat well. I made one mistake (human error on my part) I put the 30 amp fuse from the T-one vehicle wiring harness #118265 in the wrong fuse box under the hood. Also, after installing the plug in wiring adapter for the electric brake controller #3070-P and the Prodigy P2, I discovered I had no power running to the brake controller. I didn’t know why. I happened by chance while reviewing the hundreds of customer feedback comments that I needed an additional 20 amp fuse under the hood in one of the fuse boxes in slot number 14, for e-trailer. It seems to work ok now for the Honda Pilot (going to hook up the trailer today for a trial run). I’ll be installing the other components on the 2001 Dodge Durango this week. E-Trailer dosn’t have a “How To” video for the 2001 Dodge Durango Sport without a towing package. Not looking forward to this install at all. A few years back, I did install a receiver and a 4-pin adapter wiring kit to my rear brake lights on this vehicle. I hope with the the Universal Kit #ETBC7 and the additional Prodigy P2 #90885 I bought from you guys I can get the Durango ready to tow the same electric brake trailer. I did find “Trailer Brake Controller Installation-2001 Dodge Ram-etrailer.com” that I hope will make this installation go ok. Will there be any additional fuses or other things that I will need for this vehicle? Thanks, Garry


Comments
You should not need any fuses for the 4 way wiring in the Dodge Durango. You will need the circuit breakers that come with the # ETBC7
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
$115.02
kit. I have attached a video for the installation of the P2 and the # ETBC7
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
$115.02
kit on a 2007 Dodge Durango, it is the same installation as the 2001.
-- Etrailer Expert Heather A - 07/10/2018


- 11755
by:

I’ve bought from etrailer numerous times. Have had nothing but great service from them. I have recommended them many times. I recommend them today to someone that had just bought a toy hauler.


30
870
Show More Reviews

Ask the Experts about this LubriMatic Accessories and Parts

  • Can Grounding Issues Affect Lighting and Trailer Brake Functions on 2001 GMC Sierra 2500 HD
    Your recently installed audio amplifier should have no interaction with the vehicle or trailer lighting since it should be directly connected only to the battery +12V and ground. There should be no common wiring between the audio and lighting systems. Your trailer lights being incandescent should have no bearings on this issue. What is the error message on your trailer brake controller? If it indicates that it has lost connection to the trailer brake circuit then there could be a corrosion...
    view full answer...
  • Boat Trailer Brake Lights Do Not Work when Running Lights are On
    If your brake lights do not work only when the running lights are on, my best guess is that you have a poor ground causing the issue. So you'll want to make sure your grounds are attached to bare metal surfaces and free of any paint, dirt or corrosion. This issue could have happened as you were putting new lights on, with the other possibility being that if your brake lights were LED and you switched to incandescent, maybe you have an overload though that seems less likely. I have...
    view full answer...
  • Troubleshooting Trailer Running Lights Not Working With 2019 Ram 3500
    Typically when parking or clearance lights stop functioning, the issue is a poor ground connection so I'm confident that's the problem here. What you'll need to do is make sure your grounds are attached to bare metal surfaces and free of any paint, dirt or corrosion. The other potential problem are your connectors. You will want to check the trailer connector on your 2019 Ram 3500 and trailer for corrosion, which can be green or white in color. A build-up of corrosion can interfere with...
    view full answer...
  • Does Dialectic Grease Conduct Electricity
    Dialectic grease does NOT conduct electricity. It is used on connections to help insulate the metal to metal connection and prevent corrosion by preventing moisture from getting to the connection.
    view full answer...
  • Electric Brake Compatibility on a Boat Trailer
    Electric brakes on a boat trailer are able to be used without much issue at all. There obviously is an issue with water and electricity, so it is recommended to disconnect the trailer connection when your trailer is being submerged for launch. A few seconds after pulling out of the water, you can connect your wiring without any issues and have the functioning braking system that is easier to maintain. Many boat trailers are moving to electric systems. I do recommend using dielectric...
    view full answer...
    Image 1 for Image 2 for
  • Installing Dielectric Grease on 7-Way Plugs to Prevent Corrosion and Keep Electrical Connection
    Dielectric grease is basically just applied in a thin coating to the connector plug. You can use # 11755 or # LT37534 if you prefer a smaller amount. I've attached a video to assist. Just like the connection on the back, you can add this to the trailer pins on the front of the connector as well to keep moisture and debris out to prevent corrosion. I've attached an article to help as well.
    view full answer...
  • How to Secure 7-Way Wiring Harness to 7-Way Socket With Broken Locking Tab
    If your 7-way harness' locking tab broke you could replace the wiring harness if you wanted to or you can simply snug it up with a zip tie. I suggest that you disconnect the plug from the 7-way, clean the contacts as needed, apply a protective coating of dielectric grease # 11755 to block moisture and contaminants from entering and secure the harness to the 7-way with a zip tie, something like # 853-3194-02. Wiring kits for your truck are linked, for reference.
    view full answer...
  • Trailer Marker Lights Are Too Bright Suddenly
    I think you hit it right on the head when you mentioned the grounds. That is very often the cause of all sorts of odd lighting issues - and lights suddenly getting brighter is definitely one of them - so I recommend ensuring those grounds are good as I suspect that's the issue. I have also added a link to a help article on wiring troubleshooting which may be helpful.
    view full answer...
  • Trailer Brakes Not Working On A 2016 Chevrolet Silverado 3500
    The first thing you will want to do is check the inside of both the vehicle's and trailer's connectors for debris or corrosion. If corrosion is present, you will then want to spray some electrical parts cleaner on the inside of the connectors to clear the debris. The next thing you will want to do is test the 5 o'clock pin at the back of the vehicle's trailer connector to make sure it is receiving power when the manual override on the brake controller is activated, you will need to have...
    view full answer...
  • LED Trailer Light Voltage Loss
    It sounds like you did it the right way this time! To track down this voltage loss, I would recommend a few things. First, make sure that your trailer and vehicle side are properly grounded to clean, bare metal. Secondly, double check all of your connections, from the trailer connector on back, checking for pinched wires. Using some dielectric grease, like part # 11755 on all of your connections, including the trailer connector, to protect against water and corrosion. LED lights actually...
    view full answer...
  • How to Prevent Corrosion on a 4-Way Trailer Connector
    For a cover designed to fit over standard 4-way connectors we have the # C58200. Another very helpful idea will be to put dielectic grease on the pins of your 4-way. This will actually be your best way to fight the corrosion. For that you would want the part # 11755. Basically you will need to apply a liberal amount of it all over the pins of the connectors before you put the cover on the 4-way and you will not have to worry about corrosion.
    view full answer...
  • Troubleshooting Brake Controller Malfunction When Trailer Plug Gets Wet
    In order to protect your circuit breaker and your controller, you do need to keep moisture out of the electrical connections causing shorts. My recommendation is to use dielectric grease # 11755 to keep moisture and debris out of your connections. Use this at any connection point to give you a more secured connection. If you don't already have a cover for your trailer connection on your trailer, I recommend replacing your connector with one that has a spring loaded cover to keep a tight...
    view full answer...
  • Troubleshooting Weak Ground on 2004 Silverado and Trailer Wiring
    No worries. What you describe sounds like the classic case of a bad ground. Because vehicle headlights use a fair bit of power and remain on continuously (rather than blink) they often are the lighting function that causes a weak ground connection to reveal itself. Find the main ground wire from the truck's trailer connector and find where it attaches to the truck metalwork. You may need only sand off this grounding point so that you can re-attach the ground wire to clean bare metal....
    view full answer...
  • Trailer Disconnected Error Message
    The most common cause for a trailer brake controller to display the 'no trailer connected' error message is a damaged or corroded connector on the trailer. Corrosion can occur inside a connector too so you'll want to re-inspect both the external contacts and the back/inside of the connectors if possible for signs of any corrosion. Even slight greenish or whitish discoloration can indicate a corrosion issue, and certainly it can also happen that there can be severe corrosive build-up...
    view full answer...
  • Intermittent Trailer Braking Signal From Brake Controller
    An intermittent trailer brake signal is generally caused by one of two things. The first of which is the easiest to check and will be the ground circuit. You will want to ensure that the ground is securely attached to a bare metal surface on the frame. The other possible cause of this problem could be a corroded trailer connector. You will need to clean inside both of the trailer connectors looking for dirt and debris. Use the Dielectric Grease for Electrical Connectors part # 11755 before...
    view full answer...
  • Trailer Lights Acting Funny Is It a Ground Issue
    Everything you are describing here - the turn signals going slower, some lights activating when you activate certain light functions - points to a poor ground with your truck. The fact you have used the trailer with other trucks and have not had the same problem points to the ground being an issue. You will want to check your harness ground and need to make sure your grounds are attached to bare metal surfaces and free of any paint, dirt or corrosion. I have added links to help articles...
    view full answer...
  • Trailer Warning Lights Flash in Vehicles Message Center
    The trailer warning lights flashing in your message center sounds like either a ground issue on the trailer or a corrosion problem between the trailer connectors. I would first start off by disconnecting the trailer connectors and using a bit of electrical spray to clean the pins. Once done, I would also use a bit of dielectric grease like part # 11755 between the two connectors before mating them back together to prevent future problems. Before you move onto the trailer wiring, I also...
    view full answer...
  • Trailer Keeps Blowing Fuses on Tow Vehicle
    You are correct, if you know that your trailer is causing an issue with your fuses blowing then you will want to check the connector, wiring, and the grounds. Make sure that the connector is free of any debris or corrosion. Clean it anything out that might be there and apply Dielectric Grease # 11755 in the connector to help keep it clean and in proper working order. To check the wiring you will want to look for any places where the wire has been bent, damaged, corroded, or has exposed...
    view full answer...
  • Troubleshooting Blown Fuses on Running Light Circuit of 7-Way Socket
    The easiest way to troubleshoot your trailer lighting functions is when it is not connected to the tow vehicle. Apply 12V power from the truck's battery or a well-charged spare if you have in the garage directly to the contacts on the trailer plug. Direct power input to the trailer plug lets you test the trailer running/clearance/license plate light function in isolation, without any possible interaction with the vehicle. A set of jumper cables and two short lengths of 10- or 12-gauge wire...
    view full answer...
    Image 1 for
  • Possible Causes for Dim Trailer Lights
    Most often the root cause for issues with trailer lighting is a weak ground. Strange as it may sound, a loose or rusty/corroded ground can cause a vehicle's trailer wiring harness to badly misbehave and shut down some functions. It may also just limit the amount of current that can flow to the lights and this will result in dim illumination. The easiest way to check the trailer ground is to disconnect it from the vehicle and apply 12V power (from a well-charged 12V battery) directly...
    view full answer...
  • Intermittent Trailer Disconnected Message on a 2012 Ram 1500
    The intermittent trailer disconnected message that is appearing on your 2012 Ram 1500 is generally caused by corrosion in the trailer connectors but since you have already checked that we can eliminate that possible cause. I will say that although it may not appear that corrosion is present, you will still want to spray each end with some electrical cleaner and then use some dielectric grease like part # 11755 before mating them back together. Once you have cleaned and greased the inside...
    view full answer...
  • Troubleshooting The N.C Code Flashing On Brake Controller
    The NC means not connected, so your brake controller isn't seeing your trailer because there isn't a power draw on the brake controller output wire. Often this is because of corrosion at the connections or a bent pin. Check and clean your connections and add a little dielectric grease # 11755 to help that connection. Sometimes there needs to just be a little more of a amperage draw on that brake wire for the controller to see connection. You can use a circuit tester like # PTW2993...
    view full answer...
  • How to Correct Weak Ground Connection on Vehicle and Trailer
    A hitch ball does not make a good ground connection for trailer lighting functions. The fact that the lights work for a bit after you hit a bump with the hitched trailer tells us that somewhere in your trailer and vehicle wiring there is an intermittent ground connection. This kind of problem usually has a fairly simple fix. I suggest you locate the tow vehicle's wiring harness ground wire. This white wire needs to be firmly attached to a clean bare metal surface on the vehicle. On the...
    view full answer...
  • Troubleshooting Pulsing Brakes when Blinkers are On
    The right turn blinker circuit of your trailer is shorting out to the brake output circuit (signal that carries the brake controller voltage) and that is why you are experiencing the pulsating. Starting at the trailer connector on the trailer you will need to trace the wiring back from there to the brake assemblies looking for any cut or exposed wire and fix as necessary. I attached a help article on brake controllers for you to check out as well.
    view full answer...
  • When is it Recommended To Use Dielectric Grease When Wiring
    We want to thank you for your recent purchase! You wouldn't need to use dielectric grease with a butt connector such as part # DW05714 (view video at the 1:16 mark) as electrical tape will work great. Heat shrinkable tubing such as part # DW05451 will help protect against the elements. It works with 14-18 gauge wire. Most trailer light wiring is 16-gauge. Once you have your wire inside the tubing you can use a heat gun, blow dryer and/or lighter utilize the heat shrinkable tubing....
    view full answer...
    Image 1 for
  • New Trailer Brakes Pulse In Rhythm with the Left Hand Turn Signal
    It sounds like the brake controller is picking up some of the current from the blinkers. Installing a Pulse Preveneter, part # 5501, should remedy the issue. A pulse preventer essentially filters out the fluctuations created by the blinkers so that only the constant signal of having the brake pedal applied will activate the controller. I have added a link to the part below.
    view full answer...
  • Troubleshooting Trailer Brakes Activating with Corroded Trailer Connector
    If you have found corrosion on your trailer plug then that can certainly be contributing to the problems you are running into. Corrosion can cause electricity to jump from one pin to the next so I recommend cleaning off the corrosion from your trailer connector and applying some dielectric grease # 11755 to help further protect your connector from debris and corrosion. Let me know if you are still having issues and I can help you troubleshoot further.
    view full answer...
  • Troubleshooting P.L. Error on Prodigy Brake Controller 90185 Installed on a 2005 Yukon XL
    I would actually check the connection between brake controller and your factory port. Often you would see the P.L. if the connector wiggled slightly loose from where it is plugged into your junction box, especially if it is only happening once in awhile. Try unplugging the brake controller from the junction box port and let it sit for three minutes. When you plug it back in, make sure the connectors are firmly clicking together. You will need to reset the controller brake power and...
    view full answer...
  • Troubleshooting Intermittent Running Lights on the Curt T-Connector Vehicle Wiring Harness
    If you have power passing through the convert box on the Curt T-Connector Vehicle Wiring Harness part # C56106 then it is working properly. It sounds to me like there's a connection issue somewhere along your wiring harness. The first thing I would do is check the trailer connectors. I suggest using a bit of electrical cleaner between the pins on the 4-way trailer connector for both the vehicle and trailer. You will also want to check the wires leading into the connector to ensure they...
    view full answer...

Do you have a question about this Accessories and Part?




  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality accessories and parts for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate accessories and part information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Patrick B
Expert Research:
Patrick B
Employee Jameson C
Expert Research:
Jameson C
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Zack K
Video Edited:
Zack K
Employee Joshua S
Video Edited:
Joshua S
Employee Andrew L
Video Edited:
Andrew L
Employee Mike H
Video Edited:
Mike H
Employee Dustin K
Video Edited:
Dustin K
Employee Sue W
Video Edited:
Sue W
Employee Chris R
Video Edited:
Chris R
Employee Jeff D
Installed by:
Jeff D
Employee David F
Installed by:
David F
Employee Nicholas E
Test Fit:
Nicholas E
Employee Shane T
Test Fit:
Shane T

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.