Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Protect your electrical connections with this specialized formula that combats corrosion from water damage. Electrical Contact Grease comes in a 2 oz. tube.
Using electrical contact grease increases reliability and the life of the connection by preventing corrosion and sealing the connection.
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.
Today were going to be replacing the wiring on this trailer. We will be replacing a 4 pole flat, as you can tell this one is pretty beat up and worn, so it has to be replaced. We are going to cut this wire off and we are going to replace this brown wire also. We are going to cut this loose and pull the rest of our wire through, on this trailer here it is pretty open so we can reach the wiring. Just in case though, if your wiring was run in conduit and you are replacing it, do not pull all of this out yet. We will actually tie on the new wires and use these wires to pull them through. We are going to cut off all of this old wire here, and we are going to take off this old light too. I would like to point something out on this 4 pole flat, you will notice there are actually 5 wires coming out of it. What is happening is on the inside of this pin, which is for the running lights, has two wires coming out.
The reason for that is we can split the running light circuit to both sides of the trailer. Mainly that is used on boat trailers and other light duty ones. What is nice about that if you have a running light on the side, chances are your running wire right next to it. You can tap into your wiring without having to make a wire go all the way across. It basically provides a short cut. This case we are going to run it all the way on one side and jump over since we have a small trailer and no running lights. Now we are going to tape our new wires to the old ones and pull it through the frame. It does not take much, just enough to make it smooth so it does not snag anywhere. Now we simply pull the wire through. Before we pull everything through, we are going to make sure we have enough leader to hang out. This unit comes with a pre-wired ground wire so we are going to leave it at its maximum length and this is where we are going to ground it at and well have a good idea of how much slack we need to leave. At this point its a good idea to tape up all the wires together that way it will keep them from getting tangled with anything else. Since we have our ground here we are going to ground it but before that we are going to take this loop off for a smaller one. Since we have an existing ground that works pretty good, we will use a smaller screw. Always give it a twist when you crimp it down it will make a nice tight fit. We will re-install our screw but first we will put a pit of dielectric grease on there to help protect it a little bit, electricity still flows on the ground and the less rust the better. Now we can pull the rest of our slack out.
We have our lights pulled over to the left hand side, we are using the yellow and the brown, yellow for left turn. We need to cut this wire to length about 1/2 to 3/8 inch. The wires then get stuck inside here there is a little strip in here that pulls against it and when you pull it back it catches so it can not come out and makes electrical contact. You bottom out the plastic and give it a little bit of a pull back and it catches. Same thing with the left turn signal. If you notice there is two holes side by side here. You could actually jump another wire from this hole here to another light, so it acts like a miniature junction box. This little channel here hides the wire so when you push it up against your frame it wont get mashed. Your light gets installed just like that. Before we bolt on our light we are going to clean this area out where the holes are that way it makes a good metal to metal contact with no rust and corrosion. You can use a file or scrape it if you are in a hurry but if you can use something more abrasive. You do not have to get these super tight, just snug them down and they will be fine. Again were going to use the old wire to pull the new wire through. Now were back on the right side of the trailer and we will do the same thing, we will run the wires and install a new light. Now we will install our wiring, green for the right turn and brown for the running light. One more final touch will be to run some loom clamps to the wire to keep it up closest to the bed. It does not touch anything, but it is better to keep it out of the way. At this point we will reassemble our trailer and test out the lighting. We have our trailer wired up, lets give it a test run. Notice we did not connect our truck to the trailer so we can make sure our ground wire is working. It is not a good idea to ground through the ball because it can be intermittent from bouncing around going down the road. First we will test the running lights then the turn signals, then the brake lights. We will do this for both sides. There you have it for our install of our trailer wiring harness. We used part number A35W42B and the tail lights we used, the left hand side was part number 432400 and the right hand side was 432200.
Customers compare 11755 to these similar products
Customers Who Purchased This Accessories and Parts Also Bought...
Average Customer Rating: 
4.8 out of 5 stars (43 Customer Reviews)
by: John S.01/26/2011
Is this review helpful?
Excellent protection. 6144
by: John Vlna06/02/2011
Is this review helpful?
Excellent Product 15936
by: Ed K.12/16/2010
Is this review helpful?
DIELECTRIC GREASE I HAVE NOT TRIED THIS TYPE OF PRODUCT BEFORE BUT FROM PAST EXPERIENCE I KNOW THAT TRUCK & TRAILER WIRING CONNECTIONS TAKE A BEATING. THIS SHOULD HELP KEEP OUT WATER & CORROSION.4252
by: freezer10/02/2011
Is this review helpful?
I had three vehicles with hitches in the past that all had green 4 pole trailer connectors from corrosion. So far, this grease has kept that from happening. It is much easier to get the harnesses together and apart now, too. Well worth the money.24958
by: Art C.06/30/2011
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Exactly what i needed. 18246
by: Randy06/04/2011
Is this review helpful?
A little goes a long way. Great stuff. 16116
by: B05/13/2011
Is this review helpful?
Helps to make the connection last longer over the years> works fine.13860
by: V Wardlaw05/11/2011
Is this review helpful?
I received my product in a timely manner. The product works very good. I've used it on several electrical connections such as vehicle tail lights and trailer lights. Works Great.13581
by: John H.04/13/2011
Is this review helpful?
Good Stuff for electrical connections ! 11648
by: James Kroeplin Sr04/08/2011
Is this review helpful?
really helps to protect the wiring from turning green from corrosion11361
by: Orval03/21/2011
Is this review helpful?
Use it to install the harness 9944
by: Ben H.02/28/2011
Is this review helpful?
Only time will tell how it holds up but out of tube, it looks like quality grease8077
by: Don Lindars05/02/2013
Is this review helpful?
Came with my other order. Was on time and met my expectations78640
by: michael k03/08/2013
Is this review helpful?
Just works... 69655
by: Dana03/03/2013
Is this review helpful?
This is an excellent way to insure you can take connectors apart in the future and that water will not get into the connections.68520
by: Hershel03/02/2013
Is this review helpful?
just what I ordered 68460
by: Austin_Dave02/19/2013
Is this review helpful?
A good inexpensive way to help prevent corrision from water & other contaminants on your trailer electrical connections & makes it smoother to to attach and detach them66963
by: Wayne S.02/06/2013
Is this review helpful?
Good stuff. I probably have enough to last the rest of my life though!65158
by: Ryan C.11/20/2012
Is this review helpful?
I used this product when installing a new trailer tap connection to the existing vehicle connection. I also use it on all my trailer connections to keep water out and eliminate corrosion. This is a very good product for this type of application.59811
by: Devin F11/09/2012
Is this review helpful?
Shipping was extremely fast, the only problem I had was the color wires coming out of the plug were not hooked to the correct pins that is typically used for trailer wiring.59128
by: JR Woodworker11/09/2012
Is this review helpful?
purchased for future use, did not use t oday.59111
by: Frank H.10/29/2012
Is this review helpful?
great product to us on all trailer electrical connections. Maybe it will keep light bulbs from sticking in sockets as well. 58320
by: Bart U.10/21/2012
Is this review helpful?
Great product! Be sure to use it, especially if you live in the northern U.S. where they salt the roads.57789
by: Ron B.09/20/2012
Is this review helpful?
I always use dielectric grease on all my plug connections to solve the corrosion problem. I live in Ohio and the salt on the ATV trailer does ruin cheaply done wiring connections. Worth the time and effort to not have to trouble shoot problems later in the wiring. 55251
by: Gordon P.09/04/2012
Is this review helpful?
A must have for maintaining trailer connectors. 53852
by: Mark W07/30/2012
Is this review helpful?
I've never used a product like this before, but I do notice that the wiring and plug connections on which I have used it are still shiny and clean. I am hopeful it will extend the life of my wiring.49918
by: Kooder07/03/2012
Is this review helpful?
Good price for size. 46640
by: AD06/27/2012
Is this review helpful?
Fit for task. 45908
by: Russ06/21/2012
Is this review helpful?
Great product, easy to use and keeps my lights functioning!45110
by: Michael M.06/17/2012
Is this review helpful?
Great product but a little pricey. 44530
by: Michael M.06/06/2012
Is this review helpful?
I have used before and it works very go od.42949
by: Frank S.06/01/2012
Is this review helpful?
A quality product and easy to use. 42301
by: Tim C.05/16/2012
Is this review helpful?
A must have product to keep all connections working properly!40645
by: Joe Carbone04/18/2012
Is this review helpful?
We are high end appliance repair company and use this product on some of our wall oven electrical connections. Great product and etrailer was a great company to deal with. Super quick shipping and availability of the product.37573
by: Neil03/16/2012
Is this review helpful?
As expected 34077
by: Stan02/13/2012
Is this review helpful?
Seals well, and keeps the water OUT of those sensitive electrical connectors. I use this on everything around the boat.31739
by: Jim02/08/2012
Is this review helpful?
Product works great keeps the moisture out of the connections31358
by: DK from Ga.01/09/2012
Is this review helpful?
The stuff works great!!! 29403
by: Boondocker712/21/2011
Is this review helpful?
Dielectric grease is the best lubricant for your electrical contacts on fuses, plugs, etc. Once the contact has been cleaned and dielectric grease applied the contact's will not corrode nor does it inhibit or degrade the flow of electricity thru the contacts. This grease is also very water resistant. This product is a full 2oz which is unusual as most auto supply shops etc. only carry the smaller, much smaller sizes.......and I alway's seem to run out. Etrailer was very quick with delivery of the product......as alway's.28508
by: Brian W.12/20/2011
Is this review helpful?
Quick delivery. As advertized. 28368
by: Thomas12/20/2011
Is this review helpful?
Good product 28298
by: electrical grease09/14/2011
Is this review helpful?
only had it for a few days, but it looks like electrical grease, seems to be otherwise OK - used it on the HONDA Element wiring kit and on quite a few connectors on my HONDA GOLDWING Gl1800 connectors23968
by: Adam D.08/29/2011
Is this review helpful?
Quality product to ensure smooth, water resistant connections and to avoid corrosion. 22996
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