bing tracking image
  1. Wiring
  2. Deka
  3. Wire Connectors
  4. Butt Connectors
  5. 12-10 Gauge
Deka Heat Shrink Butt Connector - 12-10 Gauge - Nylon Insulation - Yellow - Qty 10

Deka Heat Shrink Butt Connector - 12-10 Gauge - Nylon Insulation - Yellow - Qty 10

Item # DW05745-10
lowest price pledge
Our Price: $13.66
Orders above $99 qualify for Free Shipping
Shipping Weight: 0.01 lbs
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


Need help with installation?
Locate installers near me
This blue butt connector joins two lengths of 12-10 gauge wire. Insulated with heat-shrinkable nylon for adjustability and durability. Lowest Prices for the best wiring from Deka. Deka Heat Shrink Butt Connector - 12-10 Gauge - Nylon Insulation - Yellow - Qty 10 part number DW05745-10 can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (141)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Why etrailer?

Deka Wiring - DW05745-10

  • Wire Connectors
  • Butt Connectors
  • 12-10 Gauge
  • Deka

This blue butt connector joins two lengths of 12-10 gauge wire. Insulated with heat-shrinkable nylon for adjustability and durability.


  • Fits 12-10 gauge wire
  • Heat-shrinkable nylon insulation allows for adjustability and provides durability
  • Yellow
  • Quantity: 10

05745 Deka Heat Shrink Butt Connector - 12-10 Gauge - Nylon Insulation - Yellow - Qty 10

Video of Deka Heat Shrink Butt Connector - 12-10 Gauge - Nylon Insulation - Yellow - Qty 10

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

Video Transcript for Review of Deka Wiring - 12-10 Gauge Butt Connectors - DW05745-10

Hello everybody, this is Jeff at Today we take a look at the Deka yellow butt connectors for the 12 to 10 gauge size wire. And this is for a quantity of 10 connectors. Now these yellow butt connectors will join two lengths of 12 gauge or 10 gauge size wire and they'll insulate the connection with this heat shrinkable nylon for adjustability and durability. The yellow color will indicate the size wire that this connector will fit which is the 12 to 10 gauge size. And if you're not sure or remember which color fits what it is also stamped on the connector itself 12 dash 10 AWG.

Now to install these connector it's pretty simple. All you have to do is take the two wires you're wanting to connect. And at the end of it, strip off about a quarter of vincent quarter inch of the insulation, so you have a bare wire on each end and then you'll take the first wire and you'll stick it all the way into this side and push it until it goes as far as it will right in there's this metal casing in the center here, right in the middle there's a stopper. So when you put your wire in, it'll stop automatically. So just push it in all the way make sure your strip portion is under that metal casing and then take your crimper and just push down on that to crimp that wire to that side.

And then you'll do the same with the second wire. Take the strip den slide it all the way into it'll go no further make sure it's under the metal casing, crimp that end. And then once they're both crimp what you probably want to do is pull on the wires to make sure you got a good connection. Once that's good, then what you'll do is take a heat source, like a heat gun and then just apply heat up and down along this nylon here and it'll shrink over the insulation to completely seal around the connection and it prevents the elements from getting into that connection to cause a problem. Once that's all done, you're all set.

It's all ready to go. Now this part is for a quantity of 10 connectors. We do also sell it in a single pack which is part number DW Oh five seven four five dash one. And we also sell it in a five pack which is part number DW Oh five seven four five dash five but that should do it for the review on the Deka yellow butt connectors for the 12 to 10 gauge size wire for a quantity of 10..

Customer Reviews

Deka Heat Shrink Butt Connector - 12-10 Gauge - Nylon Insulation - Yellow - Qty 10 - DW05745-10

Average Customer Rating:  4.8 out of 5 stars   (141 Customer Reviews)

This blue butt connector joins two lengths of 12-10 gauge wire. Insulated with heat-shrinkable nylon for adjustability and durability.


I’m still missing 3 items. Delay heat shrink. The tow bar 4 diode wiring kit and road master brake lite relay kit

I see that customer service is working with you to fix this issue.
-- Etrailer Expert Sierra K - 06/15/2022


I received my trailer parts two days after I ordered. Excellent service and quality parts.


The product arrived promptly as scheduled. The installation is simple: bolt the unit on the trailer frame with the supplied star washers and hook up the single power wire. The jack worked as advertised. Speed was typical for an electric jack.

The quality of the jack could be better. The three housing screws were pushed thru the plastic cover. Repaired by removing the screws and reinstalling with small washers. The fuse holder, which is already installed on the power wire below the housing, is not water proof, which should be for an exterior application. Time will tell if the unit is better than my initial observations.

Suggestion: the manual jack handle needs to be longer so it clears the top the of the propane tanks.


I like them.


etrailer products and service are excellent! With their helpful videos and staff (plus a little help from Curt Manufacturing and our teardrop trailer manufacturer (CampInn)) I was able to install electric brakes on the trailer, and a controller in my vehicle by myself. I had never installed electric brakes before. Everything works perfectly!


a must have to keep moisture out of the electrical brake connections. easy to crimp and seal, and one year later still keeping the connections dry. would definitely buy these again!


Worked well with my heat gun.


I purchased a 5th wheel wiring harness and heat shrink butt connectors,
for my 2015 GMC Sierra. I installed a tail gate light bar and did not want to cut the factory wiring. With the harness I was able to plug into the factory trailing plug
and butt connect to the light bar, while still being able to use both the 7 blade and flat trailer connectors. It made for a easy and very clean connection. thank you to
Steve and the E trailer web site for helping make this a easy job.


Received all the parts to rebuild my travel trailer brakes in a short time. Everything from lug nuts, heat shrink splices, drums, bearings, seals, brake backing plates with complete brake assemblies. All in two boxes, albeit two heavy boxes... Total rebuild time from bare axles to tires on and torqued, about 2.5-3 hours. Everything I needed was there. Thanks to Sam G. for the great customer service.


100% will and have ready reccomended etrailer!! I called because I truthfully had no idea what all I needed so I was hoping an expert would help me. My hold time was long, the recording told me approximately how long and it was accurate. Also, it's three weeks before the Fourth of July and everyone wants something to get road worthy. No big deal.
Once Geoffrey was on the phone I was absolutely blown away. He was patient, understood exactly what I was looking for (even though I didn't) and was incredibly helpful in the phone. He took his time to make sure we were going to have everything we needed to get the job done and get camping. He checked to make sure we were ordering the right size, even when our owners manual was super confusing he assisted in how to figure out exactly what we needed.
Shipping... Wow. We placed our order and less than 13 hours later it had been picked, packaged and was on its way to a shipping facility. We received it 2 days after placing the order at 7pm. We are close, but still, that's incredible!

Completely satisfied with every aspect of this experience.


The heat shrink butt connectors worked as advertised. Great Product.

All is well!
Steve P - 11/09/2017


Same exact brand that was on my trailer. Easy replacement of the brakes. A full $50 cheaper than the exact ones at the dealer where I purchased the trailer. Very happy.

Everything good. About to get the trailer inspected. Brakes are fine.
Phil T - 09/19/2016


Probably didn’t need these as the location is unlikely to get wet but they worked very well.


Was a great recommendation buy in their installation video for my wiring harness. Glad I took their advice. Product was much cheaper than the local stores I looked at.


Works good. Glad you recommended it.

Happy Happy Happy
Wayne H - 07/11/2021


Ordered 3 parts: RM-156-25; RM-156-75 and DW05745-10. All received very quickly, as is the case when I purchase from etrailer. More importantly, I get a 'live person' when I call for assistance and the service rep. is always knowledgable ( not an answering service that "will have someone call back". Time was spent with me answering all my questions and providing suggestions and opinions when I as for them, related to my project. Great company, great service - keep up the great work!


Great website, easy to locate and order the right parts, fabulous delivery speed. Love's videos to guide you through the installation -- THANKS!!
I agree with previous reviews that the packaging needs to improve. I had one brake assembly that had damage electric wires during shipping & I needed to repair. That is the only gripe I have. Other than that, THANKS!


connectors worked fine, shrunk down well to seal the splice.


I had ordered a wiring harness but it didn't fit my truck,called etrailer got the right one on order ,and they emailed the return shipping label so I could send it back. These people are great to do business with, plus being very helpful in finding the right part.


I really like the idea of any outdoor wiring connector that has self-sealing heat shrink. I don’t agree with the suggestion of using a lighter to activate the heat shrink—use a proper heat gun designed for this.


Works as advertised. Speedy delivery.
in conjunction with other items to rewire trailer.


I changed my trailer brakes to electric the NEV-ER-ADJUST brakes are good quality as is the heat shrink butt splices, 12-2 cable for the brakes. Glad I purchased new seals as there easy to damage when removing Very satisfied Thanks


Order was complete and delivered in a timely manner. Only problem (minor) was the 7way pigtail was not wired to color code. Had to use test light to get 3 of the wires in correct location. Could be a problem if someone wasn't comfortable with ringing out wires.


Calling e- trailer is like calling a friend, curtious , friendly , and aim to please. Haven't used any of the items from my order yet, I will shortly . The order was on time and wrapped so good nothing was damaged .I will definitely call e- trailer for my next order.


These were suggested on the video for the wiring harness I bought from site. I would not have given any thought to moisture proofing the connects without the video.

Show More Reviews

Ask the Experts about this Deka Wiring

  • Connector Recommendation to Wire in Trailer Brakes
    You can use butt connectors like the part # DW05745-10 or if you have a soldering iron you can solder the connections and then wrap the connections in electrical tape like part # DW04367. The butt connectors have a nylon insulation that you can apply a heat gun to which will also insulate the connection. If this is a boat trailer it's important to make the connections as waterproof as possible.
    view full answer...
  • Right Trailer Tail Light Is Not as Bright As Left
    It sounds like there may either be an issue with the ground, or on the power circuit of that particular wire. If the LED lights that you're using only have a single wire, they're going to ground via the mounting hardware so you'll want to verify that they are firmly attached to the trailer. If you've got a ground wire for all of the lights and other electrical functions on the trailer, you'll want to make sure that it is firmly connected to a paint and rust free spot on the trailer's frame....
    view full answer...
  • Is Jacketed 2-Wire 10 Gauge Brake Wire Wire Available In Different Lengths
    Yes, you can get the 2-wire, 10 gauge brake wire in any length you want, as it is sold by the foot; what you need is the following: - Deka Jacketed 2-Wire, 10 Gauge Brake Wire - per Foot # 10-2-1 Just put however many feet of wire you are looking for in the "Quantity" box on the product page and you're set. If you need butt connectors as well, we have those with the Deka Heat Shrink Butt Connector - 12-10 Gauge - Qty. 5 # DW05745-5 or Qty. 10 # DW05745-10.
    view full answer...
  • Can Two 14 Gauge Wires Fit i nthe Same End on a Heat Shrink Butt Connector
    You would need a larger size heat shrink butt connector to fit two 14 gauge wires together in one end. The largest we have are for 10 to 12 gauge wire, # DW05745-10, and that size would likely work. There isn't a specific gauge wire used for the color of the insulation around the wire. In some applications where the red wire is for 12 volt power a larger gauge should be used. But in a 4-Wire set up on a trailer where the functions are running lights, turn signals/brake lights, and ground...
    view full answer...
  • Is Jacketed 2 Wire Resistant to Salt Water
    The wire that comes with the Jacketed 2 Wire (Brake Wire) - 12 Gauge # 12-2-1 is not tinned but you could tin the ends where you're making your connections if you choose to do so. This wire is also resistant to corrosion from water in general - it doesn't have a special rating for salt water. It is perfectly fine to use on a boat that is being used to offload a boat into the ocean. Some actions you can take to help extend the life of your wiring (and trailer in general) are to use Heat...
    view full answer...
  • Can Electric Trailer Brake Kit # AKEBRK-2 be Submerged in Water
    That is an excellent question and is asked more often than you think. Electric brakes like what come in the Electric Trailer Brake Kit # AKEBRK-2 can be submerged in water when you are loading/unloading your boat. Since water and electricity don't play nice together you do need to disconnect the wiring to your tow vehicle before backing into the water. When you make all your wiring connections I recommend using head shrink butt connectors like part # DW05745-10 or part # DW05744-10 to...
    view full answer...
  • Would 7-Way Trailer Wire Connector # 7-Way Molded Trailer Wire Connector Work as 7-Way Replacement
    If your trailer has a 7-way installed on it already the part # H20044 would be a correct replacement for it. It would simply wire in place of your old one and work fine. For butt connectors you'd want the part # DW05745-10.
    view full answer...
    Image 1 for
  • Tekonsha Prodigy Electronic Brake Cable Replacement for Damaged One Dragging on Road
    Easiest solution we can offer for replacing the 7-way and lead of your Prodigy RF part # TK94FR is to hardwire in the part # H20042 in place of the one you lost. Or you could even cut the loom on both side of what you have, strip back the wiring, and then butt end connect all of the connections. For a set of ten butt connectors you'd then want the part # DW05745-10.
    view full answer...
    Image 1 for
  • Replacement 7-Way Recommendation for Trailer with Damaged 7-Way Wiring
    We have a replacement 7-way tha has an 8 foot long lead section you can use to wire to your trailer's wiring as part # 277-000143. For a pack of 10 butt connectors then we have the part # DW05745-10.
    view full answer...
  • Recommended Wire Connector Used To Attach Lights On Boat Trailer
    In order to join lights together on a boat trailer you'll want to use heat shrink butt connectors like part # DW05743-10, part # DW05744-10, and part # DW05745-10 as they keep out moisture which reduces the chance for corrosion that cause lighting issues. If you need to tie multiple wires together, you can do so using one of the larger butt connectors. In order to seal these connections you also need a heat gun, the Trades Pro Dual Range Heat Gun w/ Nozzles part # ALL836717. I have attached...
    view full answer...
  • Brake Controller Wiring on Motorhome
    To answer your first question about installing the Prodigy P3 # 90195 I recommend going with 10 gauge wire # 10-1-1 over that distance. As for your other question, you can zip tie your wires to the underside of the coach but you are going to want to use Heat Shrink Butt Connectors # DW05745-10 at your connection points to seal your ground and hot lead wires and protect them from dirt, water and the like; also be sure you have a proper ground on both your coach and trailer.
    view full answer...
  • Wiring Diagram for the HydraStar Electric Over Hydraulic Actuator for Drum Brakes Part # HBA-12
    I have attached a photo that shows the wiring schematics of the HydraStar Electric Over Hydraulic Actuator for Drum Brakes part # HBA-12 for you. If you need any wiring connectors then you can use part # DW05745-10 and part # DW05762-1. These connectors have a heat-shrink housing which will help to keep out water and prevent wiring malfunctions.
    view full answer...
    Image 1 for
  • Brakes of Trailer Towed By 2011 Nissan Frontier Immediately Lock Up When Trailer Is Plugged In
    We've been receiving reports that on some vehicles, Nissan cross-wired the wiring harness that the 2-pin portion of the # 118267 plugs into. You can confirm this by using a circuit tester like # 40376, and testing the 7-way trailer connector. On the brake output pin, which is in the 5:00 position, you should not have any voltage unless the manual override switch is engaged on the controller. If you test the pin in the 1:00 position, you should show a constant 12-volts. If the function of...
    view full answer...
    Image 1 for
  • Can Electric Brakes be Added to Boat Trailer
    You can definitely add electric brakes to your boat trailer. For a long time only hydraulic assemblies were used on boat trailers (since water and electricity aren't the best of friends), but more and more customers (as you mentioned seeing) are going to electric brakes. Various component upgrades over the years such as the casing that is used on wiring and heat shrink butt connectors like # DW05745-10 to provide a tight seal on your connections have made it so electric brakes on a boat...
    view full answer...
  • Can New Dexter Electric Trailer Brakes be Installed and Used on a Boat Trailer
    Modern electric brakes such as # 23-47-48 work fine on boat trailers . . . as long as you unplug the trailer before getting the boat in the water. But even then the way the magnets are made now getting submerged won't short them out. It is the wiring you have to be careful with. That is why I recommend using heat shrink butt connectors such as # DW05745-10 to seal out water when connecting the brake magnet wires to the trailer wiring.
    view full answer...
  • Recommended Wire Connectors for Best Vehicle Side Connection
    It appears you are looking at the Pollak Metal 7-Pole, RV-Style Trailer Socket - Vehicle End # PK12703 and want to determine the best connectors. If you will be wiring directly to the connector, there are the proper connection points on the 7-way so I recommend simply adding dielectric grease # 11755. This grease does not work as a conductor of electrical current, but rather keeps moisture and debris out of the connection to preserve the materials and reduce corrosion. If you will...
    view full answer...
  • Can Boat Trailers Use Electric Drum Brakes
    We used to say that you shouldn't use electric brakes on a boat trailer since electricity doesn't mix well with water, but we are seeing more and more boat trailer companies putting electric brakes on their trailers so it will be fine. We still recommend disconnecting the trailer wiring from the vehicle before backing into the water. Although we are well aware of people who leave them connected without any problems. Basically you are just going to need to remove your hydraulic assemblies...
    view full answer...
  • Replacement 7-Way Connector for the ETBC7
    To just replace the connector portion of the # ETBC7 you would want the part # 37185. This is the 7-way and 4-way harness that comes with the kit. The location of the connector will play into the longevity of the connector. If it is out of sunlight and not directly behind a tire where rocks or dirt would get thrown at the connector it would last the longest. For butt end connectors you would also want the # DW05745-10.
    view full answer...
  • Using Electric Brake Assemblies On Boat Trailer
    More and more trailer manufacturers and customers are starting to use electric brakes on boat trailers. This is typically because of the cost savings and also their functionality, as they are far more adjustable based on user preferences. You can absolutely install them on your boat trailer but there are a couple of precautions you will want to take. As you probably know, water and electricity aren't the best of friends, so it is best to simply unplug the trailer from your tow vehicle...
    view full answer...
  • Can the Electric Trailer Brake Kit # AKEBRK-35-SA be Used on Boat Trailer
    The Electric Trailer Brake Kit # AKEBRK-35-SA referenced in your question is designed for 3,500 pound axles and measure 10 inches x 2-1/4 inches. They also feature a 4 bolt mounting flange bolt pattern. As long as this matches what you have on your trailer, these assemblies will work great. More and more customers and trailer manufacturers are using electric brake assemblies on boat trailers. Due to improvements in wiring insulation and heat shrink connectors, past issues...
    view full answer...
  • Availability of Electric Brake Assemblies for Boat Trailer
    In the past it was not typically recommended to use electric brake assemblies on a boat trailer, simply because of the issues that could arise from mixing water and electricity. However, more and more people (along with trailer manufacturers) are starting to use electric brakes for this application. This is mostly due to improvements in wiring insulation and heat shrink connectors. On boat trailers with electric brakes, it is still recommended to disconnect the trailer wiring from the...
    view full answer...
  • Connection Recommendation for Connecting 12 Gauge and 20 Gauge Wire
    I wouldn't recommend using quick splice connectors when trying to connect to different gauge wires (as well as in general). Ideally you solder the connection or you use butt connectors. If you use butt connectors you'll want to use the yellow ones like part # DW05745-10 which are for 10 to 12 gauge wires. On the lighter gauge wire you'd need to strip back quite a bit more wire than needed and then fold the wire core a few times to thicken it up and allow the butt connectors to grab them.
    view full answer...
  • Is It Safe To Add Electric Brakes To A Boat Trailer
    Sure you can! A lot of boat trailer manufacturers put electric brakes on their trailers without any issues. We do recommend disconnecting the trailer wiring from the vehicle before backing into water just to err on the side of caution. In the past a lot of trailer companies only used hydraulic brake assemblies on boat trailers because water and electricity don't mix well. However, a lot of components to trailer brake installation have improved over the years such as the casing on wiring...
    view full answer...
  • How Do Multiple Trailer Light Assemblies Normally Attach to Running Light Circuit.
    A lot of times people will use a butt connector to splice in the wiring of more than one light on trailer wiring. You'd put the end of the connector on the side that runs from the trailer connector and then run two wires into the other side to go to two separate lights. For connectors we have the part # DW05745-10. You can do this a few times to get a few extra circuits ran.
    view full answer...

< Previous
123. . .8

Do you have a question about this Wiring?

  • Why

    At we guarantee:
  • Highest quality wiring 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 wiring 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 Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Adele M
Updated by:
Adele M
Employee Wilson B
Updated by:
Wilson B
Employee Noah M
Updated by:
Noah M
Employee Sabrina W
Updated by:
Sabrina W
Employee Laura H
Written by:
Laura H

At 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.