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Product details

Product Dimensions ‏ : ‎ 8.07 x 4.33 x 0.71 inches; 4.48 ounces
Item model number ‏ : ‎ WT160
Date First Available ‏ : ‎ June 13, 2019
Manufacturer ‏ : ‎ Kuject
ASIN ‏ : ‎ B07T1HYJ9G
Best Sellers Rank: #378 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
- #1 in Butt Terminals
Customer Reviews:
43,252 ratings

From the brand

We love cool items and cool lifestyles. Our goal is to keep developing cool projects, so that we can offer numerous cool products and bring cool lives to our customers continuously.

Started in 2017, we launched our first wire connector kit and we have specialized in it for over years. During this time, our cool products have helped a lot of people with their cool work. Now, we have launched amounts of connector kits to meet different needs.
Kuject Wire Connectors Kit
How did we get our start?

Started in 2017, to help our customers do their work well, we exclusively launched wire connector kits as our first product.

It’s a very good beginning and it gives us huge courage to keep working on cool projects like this, so that we can bring more cool experiences to our customers.

What makes our products unique?

1. Our products are created to make our customers’ cool projects come to life. Our products can fulfill the most needs for wire connection.

2. We take the quality of our products seriously and they are compliant with IS0 9001:2008, ROHS, SGS and CE standard.
Solder Seal Wire Connectors
Wire Connectors Kit
Solder Seal Wire Connectors
Solder Butt Connectors
Solder Butt Connectors Canning

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.

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.

Structure Features

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

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

More Products

	160PCS Wire Connector Buying Options	Heat Shrink Connectors Buying Options	Butt Connectors Buying Options	Ultimate Wire Connectors Buying Options	Lever Wire Connectors Kit Buying Options
Customer Reviews	43,252	6,338	3,722	1,637	457
Quantity	160PCS	320PCS	270PCS	1500PCS	150PCS
Tools Need	Heat Gun	Heat Gun& Crimper	Heat Gun& Crimper	Heat Gun& Crimper	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	✔	✔	✔	✔	✘

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Customer reviews

43,252 global ratings

How customer reviews and ratings work

Customers say

Customers find these wire connectors to be of good quality, easy to use with a heat gun, and appreciate their solid, water-tight connections. The heat shrinkage works well, and customers consider them a good value for money. However, the soldering aspect receives mixed feedback - while customers like that there's no need for soldering, they note there's very little actual solder in the connectors.

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Quality Works well Ease of use Connection quality Value for money Heat shrinkage Soldering Solder melting

923 customers mention "Quality"797 positive126 negative

Customers find the connectors to be of good quality, with one customer specifically noting the great quality of the terminals.

"...Great product that insures you have a secure wire connection and I like having the confidence that it's water proof when I go through high water...." Read more

"Good product. Easy to use. Do not over heat. Try not to use an open flame on these. A good heat gun works well." Read more

"...In theory they seem to be a great product and make connections so much easier, but if the wires are not perfectly in line with each other down the..." Read more

"...All we need now is this product for the connectors.Great Product." Read more

906 customers mention "Works well"790 positive116 negative

Customers find that the connectors work great.

"If you have two different sized wire they work great, seem like a strong waterproof bond but if you have two wire the same size, one side fits the..." Read more

"Works great... I have used these everywhere I needed a solid, water-tight seal(I also heat shrink on top of them for added insurance)..." Read more

"Work great my only complaint is trying to heat up the soldering without burning the plastic but it just needs a little trial and error" Read more

"Used a torch lighter and it works great as long as you heat it evenly then a little more on the solder area. Heat gun would be more optimal" Read more

812 customers mention "Ease of use"757 positive55 negative

Customers find these connectors easy to use, particularly noting that they are simpler than crimp connectors and can be handled with a heat gun, with one customer mentioning they work well in tight spaces.

"Easy to use. Work very well. Gave me a excellent solid connection. I was able to shrink it with a lighter with no problem. Just have to be careful." Read more

"I love these connectors. They are very good and easy to use. They hold a lot stronger than crimp connectors, and are a lot slimmer than them as well...." Read more

"These are so much easier than soldering and safer too. Very easy to use providing a very secure connection. Much better than crimp connections." Read more

"...They are easy and quick and take up less space than traditional splicing methods. I think the increased flexibility will also be a plus." Read more

409 customers mention "Connection quality"331 positive78 negative

Customers appreciate the quality of these wire connectors, noting they create solid, water-tight connections that are easy to make.

"...Easy to suse, well labled, easy to read size markings, durable and solid connection.. good assortment of sizes and amount of each" Read more

"...Job ended up coming out really clean looking with solid connections. Being right above the back tire, they had to not only be sealed, but very tough...." Read more

"...twisting the wires correctly so it slides right into it with a good solid connection. The quality is great as well!..." Read more

"...'re stainless but I was able to use these connectors and get a great connection a good seal the thing sends out a good signal so I would highly..." Read more

291 customers mention "Value for money"225 positive66 negative

Customers find these wire connectors to be a good value, appreciating that they save time and money.

"Good price on. Plastic case is crap. I hate those containers they always open and spill. But they need to ship them some how...." Read more

"...Great value and simple to use." Read more

"...the joint set up and seems to be watertight and a solid connection. good value and I'll be using these more often for sure...." Read more

"Waste of money if you are looking for solder connection using the red connectors" Read more

205 customers mention "Heat shrinkage"146 positive59 negative

Customers are satisfied with the heat shrinkage properties of these connectors, noting that the plastic tubing works well and shrinks easily with a heat gun.

"So much easier than using regular connectors and heat shrink. Works quick and easy and a solid connection" Read more

"...The heat shrink works well, and the solder rings work well, they just don't work well together...." Read more

"Not a 3:1 shrinkage ratio as depicted by product photos." Read more

"...The plastic shrinks, keeping water and debris out, while the solder melts creating a fantastic connection between the wires...." Read more

218 customers mention "Soldering"130 positive88 negative

Customers have mixed experiences with soldering: while some appreciate that the connectors don't require soldering, others report that there is very little actual solder in the parts.

"These are amazing! They solder, bind together, and weather-proof! I wish I would have known about these 20 years ago!!!..." Read more

"...12 gauge or larger there is not enough solder to make a connection that I am satisfied with. I used a Weber heat shrink gun on high heat...." Read more

"The concept of this connector is great. Solder, seal, waterproof all in one operation...." Read more

"These connectors are junk, do not buy! They have very little solder in them and by the time it takes to actually heat them up enough to melt the..." Read more

429 customers mention "Solder melting"120 positive309 negative

Customers report issues with solder melting, noting that it takes longer than expected to melt and sometimes fails to melt at all.

"These are not as advertised. The solder does not melt. It becomes no more than soft and the plastic has already shrunk...." Read more

"...Solder doesn't melt, shrink coating melts and falls apart. Tried multiple settings, adapters and timing with heat gun...." Read more

"This is a great concept if it worked. Solder does not melt. The plastic sleeve melts to hopefully provide a waterproof seal...." Read more

"I had high hopes however the solder doesn't melt even with the heat gun on the highest setting. Can damage the wires if heated to much longer." Read more

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Kriszena
Easy to use, secure connections
Reviewed in the United States on October 28, 2025
Number of Items: 120Verified Purchase

Handy electrical connectors for various wiring projects used on our boats and waterfowl decoys. Keeps everything neat, tidy and secure, and protected from the elements. Very easy to use with a heat gun to seal and connect. I will be keeping these on hand for future projects.

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Peter Mott
Saves a lot of fussy soldering work, at a very good price!
Reviewed in the United States on October 11, 2025
Number of Items: 120Verified Purchase
Wow, this saves a LOT of work.

*So* simple to use. Strip the wires, slip it on, twist wires together, slip it back so it covers the bare wires, then hit it with your heat gun. Very satisfying to watch the solder melt inside, without dripping it everywhere!

Kit covers the range of common wire sizes, at a very good price -- have seen competing kits for twice the cost, with no difference in quantity or quality.

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Jeff/Janice Young
Work as described, but norm difficult to use than expected.
Reviewed in the United States on October 31, 2025
Number of Items: 120Verified Purchase
Work well, but it's hard to fit the twisted wires far enough into the tube for the perfect in line splice.

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Arnoldo
Good product
Reviewed in the United States on November 6, 2025
Number of Items: 120Verified Purchase
Good product i use it all the time easy to use and will last

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R Christian D
Dont Hesitate!
Reviewed in the United States on October 1, 2025
Number of Items: 120Verified Purchase
Exceptional Product! For those of us old school who do the twist, solder, sheath and small torch or lighter this is a low cost easy no brainer. Easy to use well packaged both from an exterior and interior perspective. Saves time [ which is money for me whether its a trade job or one of my own ] and no cleanup or need for other materials. This is a "why didnt I think of that!" product!!

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One person found this helpful

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Marshall B.
It works!
Reviewed in the United States on October 28, 2025
Number of Items: 120Verified Purchase
Works good, just don’t heat too long, but had a strong hold, and very cost effective.

(My puppy, had chewed the wire)

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Marshall B.

It works!

Reviewed in the United States on October 28, 2025
Works good, just don’t heat too long, but had a strong hold, and very cost effective.

(My puppy, had chewed the wire)

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Andrew Ramirez
Great to have in the garage
Reviewed in the United States on November 6, 2025
Number of Items: 200Verified Purchase
Perfect for joining wire

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Beto.
Low quality
Reviewed in the United States on October 9, 2025
Number of Items: 200Verified Purchase
This kit helped somewhat. Material is not so durable.
I would use it as a last resort. Price is not bad.

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Allan
Works well
Reviewed in Australia on August 31, 2025
Number of Items: 120Verified Purchase

So far they work well and do the job. Easy to use. Worth the cost.

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Lillian
All good
Reviewed in Sweden on September 20, 2025
Number of Items: 200Verified Purchase
Restored broken car wires still works good

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Jack
Handig
Reviewed in the Netherlands on September 9, 2023
Number of Items: 200Verified Purchase
Super handige alles in 1 oplossing om kabels te solderen en isoleren. Scheelt een hoop tijd met dit setje.

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Leif B.
Löd koppling
Reviewed in Sweden on February 26, 2023
Number of Items: 330Verified Purchase
Svårt att få tennet smälta försökte med värmepistol o tändare, gick inte

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Erik Andersson
BRa
Reviewed in Sweden on June 11, 2025
Number of Items: 270Verified Purchase
HÅller vad de lovar

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Color	RED BLUE YELLOW WHITE
Connector Type	Solder
Contact Material	Copper
Insulation Material	Polyolefin
Terminal	Butt Terminal

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Kuject 160PCS Solder Seal Wire Connectors Kit, Waterproof Solderless Heat Shrink Butt Terminal Insulated Electrical Butt Splice for Automotive Marine Boat Wire Joint

About this item

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Product details

From the brand

Kuject Wire Connectors Kit

How did we get our start?

What makes our products unique?

Solder Seal Wire Connectors

Wire Connectors Kit

Solder Seal Wire Connectors

Solder Butt Connectors

Solder Butt Connectors Canning

Product description

IP67 Waterproof

High Success Rate

Structure Features

More Products

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It works!

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5.0 out of 5 stars Works well

5.0 out of 5 stars All good

5.0 out of 5 stars Handig

4.0 out of 5 stars Löd koppling

5.0 out of 5 stars BRa

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Product Summary: Kuject 160PCS Solder Seal Wire Connectors Kit, Waterproof Solderless Heat Shrink Butt Terminal Insulated Electrical Butt Splice for Automotive Marine Boat Wire Joint

Price

About this Item

Product Description

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Feedback

Works well

All good

Handig

Löd koppling

BRa

Product summary presents key product information

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