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Kuject 120PCS Heat Shrink Wire Connectors, Waterproof Insulated Electrical Splice Terminals for Marine Automotive Boat Truck Wire Joints

4.5 4.5 out of 5 stars 39,079 ratings
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Extra Savings Save 30% on 160PCS Heat Shrink Ring Terminals 22-16 AWG 3/8" when you purchase 1 or more Qualifying items offered by KujectDirect. 1 Applicable Promotion
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120PCS

Purchase options and add-ons

Color RED BLUE YELLOW WHITE
Gauge 10,12,14,16,18,20,22,24,26
Connector Type Butt Splice
Stud Size 26 - 10 A.W.G.
Terminal Butt Terminal

About this item

  • Time Saver - solderless, crimpless, all you need is just a heat gun to finish the joint, much faster and easier than the old way.
  • Fit for Confined and Narrow Spaces - can be bent after connection and no need to crimp or solder in the confined area, just control the temperature via a heat gun.
  • Better Waterproof and Seal Performance - there is two hot melt waterproof adhesive rings in each butt connector, which help it hold up better to moisture.
  • High Temperature Proof in A Short Time: use exclusive material in the butt connectors to avoid shrink tubing melting before solder ring.
  • IATF16949:2016 Listed: The Kuject solder seal connectors meet the newest standard of International Automotive Task Force, which is the most standardized way for you to repair or modify your car.
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Kuject 120PCS Heat Shrink Wire Connectors, Waterproof Insulated Electrical Splice Terminals for Marine Automotive Boat Truck Wire Joints

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 7.87 x 3.94 x 0.67 inches; 3.53 ounces
  • Item model number ‏ : ‎ SS120
  • Date First Available ‏ : ‎ July 6, 2017
  • Manufacturer ‏ : ‎ Kuject
  • ASIN ‏ : ‎ B073RMRCC3
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.5 4.5 out of 5 stars 39,079 ratings

From the brand


Product Description

IP67 Waterproof

Solder seal wire connectors come with IP67 water-resistant rating.

After being heated, they shrink and water will not be able to go inside,

preventing any short circuit issues.

Widely used on boat, vehicle, motorcycle, home, factory or marine.

50
50

High Success Rate

Our wire connectors are upgraded to use exclusive material in the butt connectors to avoid shrink tubing melting before solder ring. The success rate of connecting wire has been greatly improved.

50

Structure Features

Polyolefin Tubing Outside and Hot melt Adhesive Inside make connection strong and waterproof.

50

Note: We suggest the temperature that the hot air gun should set about:400-600℃ (752-1112°F)

120

More Products

120

120pcs Wire Connectors

320

Heat Shrink Connectors

270

Butt Connectors

0

1000pcs Wire Connectors

150

Lever Wire Connectors Kit

Customer Reviews
4.5 out of 5 stars
39,079
4.5 out of 5 stars
4,045
4.7 out of 5 stars
3,453
4.5 out of 5 stars
1,614
4.6 out of 5 stars
197
Quantity
120PCS 320PCS 270PCS 1000PCS 150PCS
Tools Need
Heat Gun Heat Gun& Crimper Heat Gun& Crimper Heat Gun No need any tools
Tubing shrink ratio
3:1 3:1 3:1 3:1 NONE
Stud Size
None #10 1/4“ 5/16“ 3/8“ None None None
Insulated
Waterproof

Looking for specific info?

Customer reviews

4.5 out of 5 stars
4.5 out of 5
39,079 global ratings

Customers say

Customers like the water resistance of the electronic component terminal. They say it has a super good waterproof seal and a strong connection. They also appreciate the ease of ordering and the quick delivery. Customers are happy with connectivity, ease of use, and performance. However, some customers have reported issues with the heat resistance of this product. They mention that the heat shrink plastic winds up melting before the solder inside reacts. Customers also differ on quality, and value.

AI-generated from the text of customer reviews

1,071 customers mention979 positive92 negative

Customers are satisfied with the performance of the electronic component terminal. They mention that it works well when the directions are followed, and it works fine with a heat gun. Some say that the product is durable and works well with other components. Overall, most are happy with their purchase and recommend it to others.

"...I am impressed! They are incredibly easy to use, and worked perfectly the first time...." Read more

"These are incredible. I have used these now for multiple applications, from a car to sprinkler wires to vending machines...." Read more

"...Glad I did because they work great and plan to buy more...." Read more

"...These are durable and work great when directions are followed...." Read more

694 customers mention659 positive35 negative

Customers find the electronic component terminal easy to use. They mention that the simplicity made it a breeze, the connectors themselves are very easy to work with, and the heat shield for these makes the installation super simple and quick.

"...I am impressed! They are incredibly easy to use, and worked perfectly the first time...." Read more

"...Other than that, these are easy to use, guarantee a solid connection, go waterproof, and make it so that the connection isn't a massive piece of..." Read more

"...tubing before, they worked much better than expected and were simple to use...." Read more

"...These little connectors are so easy, and such a pleasure to use. If you connect a lot of small wire you will find these connectors indispensable...." Read more

491 customers mention425 positive66 negative

Customers like the connectivity of the electronic component terminal. They mention that the connectors provide a solid connection, near perfect connections, and are sealed better than other connectors. They also say that the connections are easy, clean, and corrosion proof. Customers also like the ease of using these to join automotive wiring.

"...Other than that, these are easy to use, guarantee a solid connection, go waterproof, and make it so that the connection isn't a massive piece of..." Read more

"...I used a heat gun on high setting and was able to make a really secure connection." Read more

"...Made for easy repair!" Read more

"...Manages a decent connection even on partly-oxidized copper wire." Read more

250 customers mention235 positive15 negative

Customers are satisfied with the water resistance of the electronic component terminal. They mention that it works first time with a super good waterproof seal, making a strong waterproof connection. The sealer also melted, sealing the joint. It's quick, easy, and permanent. Customers also say that the terminal is better sealed than other wiring methods and appears to be more weatherproof than the old style.

"...tubing shrank down over the wires while the sealer also melted, sealing the joint. Quick, easy and permanent. Highly recommended!" Read more

"...than that, these are easy to use, guarantee a solid connection, go waterproof, and make it so that the connection isn't a massive piece of plastic..." Read more

"...Heat Gun melted the solder and insulation and made a nice secure joint plus waterproof. Made for easy repair!" Read more

"Great way to make waterproof wire connections just using a heat gun. Great product." Read more

196 customers mention186 positive10 negative

Customers find the electronic component terminal easy to order. They say it's a great time saver and works well for quick track pit repairs. Customers also appreciate the quick delivery.

"...Quick, easy and permanent. Highly recommended!" Read more

"Excellent wire harness repair. All in one saves time. What I like most about these is the spar they save...." Read more

"They work amazing for quick at track pit repairs. Won me a few races as I was able to get some issues fixed quickly. Strong waterproof connection." Read more

"...with the heat shield for these, makes the installation super simple & quick...." Read more

385 customers mention225 positive160 negative

Customers are mixed about the quality of the electronic component terminal. Some mention the connections were clean and solid, the tube holds up well, and it makes it easy to create reliable, waterproof connections. However, others say that the connections are clean and thin, with the potential to fail.

"...Quick, easy and permanent. Highly recommended!" Read more

"Not as much soder as I'd like but still works." Read more

"...These are durable and work great when directions are followed...." Read more

"...my rating from the current 3 stars but, given that these seemingly won't "perform", I think I'm already being pretty generous. Thoughts?" Read more

242 customers mention156 positive86 negative

Customers are mixed about the value of the electronic component terminal. Some mention that the connecting makes them well worth the price, while others say that they're cheap and a waste of money. The storage box is cheap and warped pieces get mixed up and fall out of the box if not used. They're not the most cost effective, but they'll pay for the convenience of how easy they are to use.

"...All in one saves time. What I like most about these is the spar they save...." Read more

"...IMO not as good as ads suggest but you decide." Read more

"...These are awesome and worth the money. I took some to work and showed them off to the guys...." Read more

"Great kit and great price. Has all I need and more. Worth the money and would purchase again." Read more

446 customers mention92 positive354 negative

Customers are dissatisfied with the heat resistance of the electronic component terminal. They mention that the solder doesn't melt as well as other brands, the heat shrink plastic winds up melting before the inside reacts, and it takes too much heat to melt the solders. Some customers also say that the larger ones sometimes take a little long to melt, and the plastic sleeve melts through. It's fast, but it's also easy to quickly overheat the plastic and burn it. Customers also say the wire insulation tended to blister and scorch.

"...Only thing is the solder on some of the larger ones sometimes take a little long to melt." Read more

"Have to get it very hot so has a tendency to melt the rubber/plastic, but if careful, makes an excellent splice" Read more

"...It's fast, but it's also easy to quickly overheat the plastic and burn it...." Read more

"...The solder quickly melted, and the tubing shrank down over the wires while the sealer also melted, sealing the joint. Quick, easy and permanent...." Read more

Use a heat gun and control your heat! And make sure wire is clean!
4 Stars
Use a heat gun and control your heat! And make sure wire is clean!
A little background: I've been doing electrical and electronics for over 40 years and was an aviation electronics tech in the US Navy so I've worked on everything from simple car/truck/trailer wiring, residential/commercial electrical, and electrical/electronics on military aircraft so I've dealt with wires as small as 24awg all the way up to 500 MCM (wires about 1" across) which means I've done a fair bit of splicing in my life. Now with that said nothing will replace a straight un-spliced wire but that's in a perfect world. Your sooner or later going to have to repair a wire or connect prewired devices to existing wiring. A solder joint is one of the best ways to do this and adding heat shrink to protect and insulate the splice has been the best method and next being a mechanical splice which is the next best thing. I found out about these via a YouTube video and of course looked on Amazon for them, I found so many different sellers and the reviews ranged from 1 Star to 5 Stars so I thought I would order some and give them a try. Glad I did because they work great and plan to buy more. From what I can see after using them and seeing the complaint reviews is a couple of things.#1 DO NOT USE A LIGHTER OR TORCH! Use a heat gun if you can. Remember these are basically made of plastic with some low temp solder inside. If you use a lighter or torch then you have to be very careful about how close to the splice you are and how long you concentrate that heat in one spot. I understand not everyone has a heat gun and if fixing wiring in a place you don't have an electrical outlet to plug one in will happen.#2 Make sure you have clean wire! By this I mean when you strip out the end of the wire it should be nice shiny copper, not corroded (copper turns green when corroded and in worse case black) and the reason is that the solder band inside the heat shrink does have some flux content to it but not enough to etch away that corrosion to allow a good flow of wire between the stands on the two wires your splicing.Tips: Make sure you strip out the end of the wire long enough for them to overlap one another and stay in the area of the solder sleeve. Make sure the copper is nice and clean (shiny). Applying heat to one end first to help hold one of the wires in place while you hold the other end in place with your hand. Keep your heat source (heat gun preferred) a good distance away from the splice, if it's not shrinking then move it a little closer until it starts to shrink or melt the solder band, if you see the heat shrink sleeve start to darken or burn your too close! Make sure your rotating the splice as your shrinking and soldering it, a common mistake when using this product or just heat shrink alone is that the person just holds it in once place and holds the heat source in one spot expecting it to heat the entire thing and shrink. If you see the insulation on the wire start to melt or bubble again you have the heat source too close to the wire or your concentrating that heat in one spot too long. In the picture I attach you can see the smallest splice that they have used to splice two wires (18-20 awg copper stranded, I don't remember) and the splice is still translucent and the solder flowed great (note the right side wire, the insulation is a little bubbled and thats my fault with the heat in one spot too long and also with that small of a gauge of wire it can heat up really quick).Over all being a little skeptical of the product based on the reviews I got it anyways and I'm glad I did! I planed on only using these on splices where they needed to be water proof but after using them and seeing how well they work I will use them for every splice from now on. Hope this helps others in making their decision on weather or not to buy and try these splices.
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Reviewed in the United States on February 22, 2024
Size: 160PCSVerified Purchase
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Size: 200PCSVerified Purchase
Reviewed in the United States on December 6, 2018
Size: 120PCSVerified Purchase
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4.0 out of 5 stars Use a heat gun and control your heat! And make sure wire is clean!
Reviewed in the United States on December 6, 2018
A little background: I've been doing electrical and electronics for over 40 years and was an aviation electronics tech in the US Navy so I've worked on everything from simple car/truck/trailer wiring, residential/commercial electrical, and electrical/electronics on military aircraft so I've dealt with wires as small as 24awg all the way up to 500 MCM (wires about 1" across) which means I've done a fair bit of splicing in my life. Now with that said nothing will replace a straight un-spliced wire but that's in a perfect world. Your sooner or later going to have to repair a wire or connect prewired devices to existing wiring. A solder joint is one of the best ways to do this and adding heat shrink to protect and insulate the splice has been the best method and next being a mechanical splice which is the next best thing. I found out about these via a YouTube video and of course looked on Amazon for them, I found so many different sellers and the reviews ranged from 1 Star to 5 Stars so I thought I would order some and give them a try. Glad I did because they work great and plan to buy more. From what I can see after using them and seeing the complaint reviews is a couple of things.

#1 DO NOT USE A LIGHTER OR TORCH! Use a heat gun if you can. Remember these are basically made of plastic with some low temp solder inside. If you use a lighter or torch then you have to be very careful about how close to the splice you are and how long you concentrate that heat in one spot. I understand not everyone has a heat gun and if fixing wiring in a place you don't have an electrical outlet to plug one in will happen.
#2 Make sure you have clean wire! By this I mean when you strip out the end of the wire it should be nice shiny copper, not corroded (copper turns green when corroded and in worse case black) and the reason is that the solder band inside the heat shrink does have some flux content to it but not enough to etch away that corrosion to allow a good flow of wire between the stands on the two wires your splicing.

Tips: Make sure you strip out the end of the wire long enough for them to overlap one another and stay in the area of the solder sleeve. Make sure the copper is nice and clean (shiny). Applying heat to one end first to help hold one of the wires in place while you hold the other end in place with your hand. Keep your heat source (heat gun preferred) a good distance away from the splice, if it's not shrinking then move it a little closer until it starts to shrink or melt the solder band, if you see the heat shrink sleeve start to darken or burn your too close! Make sure your rotating the splice as your shrinking and soldering it, a common mistake when using this product or just heat shrink alone is that the person just holds it in once place and holds the heat source in one spot expecting it to heat the entire thing and shrink. If you see the insulation on the wire start to melt or bubble again you have the heat source too close to the wire or your concentrating that heat in one spot too long. In the picture I attach you can see the smallest splice that they have used to splice two wires (18-20 awg copper stranded, I don't remember) and the splice is still translucent and the solder flowed great (note the right side wire, the insulation is a little bubbled and thats my fault with the heat in one spot too long and also with that small of a gauge of wire it can heat up really quick).

Over all being a little skeptical of the product based on the reviews I got it anyways and I'm glad I did! I planed on only using these on splices where they needed to be water proof but after using them and seeing how well they work I will use them for every splice from now on. Hope this helps others in making their decision on weather or not to buy and try these splices.
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822 people found this helpful
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Reviewed in the United States on February 26, 2024
Size: 200PCSVerified Purchase
Reviewed in the United States on December 27, 2023
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Reviewed in the United States on March 17, 2024
Size: 160PCSVerified Purchase
Reviewed in the United States on March 10, 2024
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Reviewed in the United States on March 10, 2024
Size: 200PCSVerified Purchase

Top reviews from other countries

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Bill
5.0 out of 5 stars Great product
Reviewed in Canada on March 6, 2024
Size: 120PCSVerified Purchase
Amazon Customer
5.0 out of 5 stars Connectors
Reviewed in Canada on December 30, 2023
Size: 330PCSVerified Purchase
Big Al UK
5.0 out of 5 stars Amazing invention
Reviewed in the United Kingdom on February 19, 2024
Size: 120PCSVerified Purchase
One person found this helpful
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Nik
5.0 out of 5 stars una versatilità praticamente infinita
Reviewed in Italy on February 3, 2024
Size: 200PCSVerified Purchase
calignano
5.0 out of 5 stars Bon produit
Reviewed in France on February 8, 2024
Size: 200PCSVerified Purchase