Kuject 200PCS Solder Seal Heat Shrink Butt Connectors, Waterproof Wire Connectors Kit Electrical Terminals, Solderless Insulated Wire Splice Cable Connector for Marine Automotive Boat Truck
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Availability:
In Stock.
Arrives
Thursday, May 7
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Number of Items: 200
Features
- 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
- 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
Color: Multi-color
Connector Type: Butt Splice
Contact Material: Polyethylene
Insulation Material: Polyethylene
Terminal: Butt Terminal
Connector Type: Butt Splice
Terminal: Butt Terminal
Temperature Rating: Work Temp -67℉ - 257 ℉
Maximum Voltage: 12 Volts (DC)
Connector Gender: Male
Contact Material: Polyethylene
Insulation Material Type: Polyethylene
Material Type: SOLDER TIN, Polyethylene
Specification Met: Iatf169492016
Item Dimensions L x W x H: 8.07"L x 4.33"W x 0.71"H
Gauge: 10,12,14,16,18,20,22,24,26
Stud Size: 26 - 10 A.W.G.
Brand Name: Kuject
Model: SS200CA
Number of Items: 200
Part Number: WT200
Unit Count: 200.0 Count
Manufacturer: Kuject
Item Weight: 111 Grams
Color: Multi-color
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Thursday, May 7
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Number of Items: 120
Picked these up for wiring on my builds and they work great. Super easy to use—just strip, insert, and heat. The solder flows nicely and the heat shrink seals everything up tight, giving a clean, solid connection without needing separate tools. I’ve used them on automotive wiring and they hold up well, especially with the waterproof seal. Way quicker than traditional soldering and more reliable than basic crimp connectors when you want something sealed and durable. Nice assortment of sizes and the case keeps everything organized. I do a lot of my own wiring and tuning work, and these have definitely made things faster and cleaner.
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Reviewed in the United States on April 25, 2026 by William Akers
Number of Items: 200
I picked up the Kuject Solder Seal Heat Shrink Butt Connectors for some wiring projects, and honestly, they’ve made my life way easier. If you’ve ever struggled with messy connections or worrying about durability, these will be your new best friend. The best part? The solder ring inside melts perfectly when heated, creating a strong, clean connection without needing extra tools or messy soldering. Plus, the heat shrink sleeve seals everything tight and waterproof, which gives me confidence that my connections won’t fail even in tough conditions. I tested these on my car’s wiring and some home electronics, and every joint has held up great — no corrosion, no loosening, just solid connections. They’re also super easy to use, even if you’re not a pro. With 200 pieces, I have plenty to keep me stocked for future projects. Overall, I’m really happy with the quality and performance of these connectors — they definitely take the headache out of wiring jobs.
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Reviewed in the United States on June 25, 2025 by Brandon S.
Number of Items: 120
Great for putting wires back together in my truck. Easy to use and holds great if you install them correctly. Nice storage included and the quality is good.
Reviewed in the United States on January 15, 2026 by Jacob knight
Number of Items: 120
TL;DR - the auto shop wanted $1600 for parts and labor. Between these, some parts, and a heat gun, my car runs better than it has in a couple years. Backstory: I have a 2013 Hyundai Veloster Turbo and the last couple of years coils and spark plugs have been going pretty fast. I figured it was something with the ignition wiring or something else electric. The shop I've used regularly quoted me $1600 for new spark plugs, coils, and a wiring harness (all they would use were coils direct from Hyundai for $970!) plus labor. For a 12 year old car that's worth less than $3k I said no way, especially giving Hyundai that much for parts. I bought these guys, a set of coils and spark plugs from Amazon, a heat gun, wire cutter, and electrical cloth tape for about $70. With the heat gun, they worked great. The solder doesn't melt quite how you'd expect, but it does turn into a softer blob and may leak slightly silver - takes a minute or two after you focus the heat there with a narrow nozzle. Make sure the wires are good and jammed or twisted in the middle of the sleeve! I made the mistake initially of not having them touching too well before using the connector and had to redo - luckily they come off fairly easily with heat and wire stripper if needed. All in all, very pleased and having zero issues so far! They shrunk well, connections are solid, and I know the wires will be better protected from humidity and heat.
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Reviewed in the United States on December 14, 2025 by Lyubomir N. Kolev II
Number of Items: 120
Very easy to use and love how quick it is to connect everything especially for a beginner this made it easy to connect everything I needed to wire together. Definitely should have bought the larger set. Highly recommend this item.
Reviewed in the United States on April 12, 2026 by mike
Number of Items: 160
Product works great. It helps to use a heat station and helping hands to hold it while you heat it up. I set my heat gun to 550F and tapered the end down (it took about 2-3min per tube). I had no issues with the plastic heat shrink melting. I did notice that if i uniformly heated the solder it would just melt in place. If I mainly heated from one side, I would see the solder melt toward that side and then spread all around the heat shrink - both ways gave me a strong connection. Made the job look much more professional than it otherwise would've looked. Great value and a huge time saver. I completed my head unit install and have probably a lifetime's worth of connectors left.
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Reviewed in the United States on February 8, 2026 by Mark Goewey
Number of Items: 120
Needed to fix a couple wires on my electric mower. The wires are pretty thin and I don’t think the traditional crimp connectors would work or last. So I bought these with the solder built in and they worked great! Make sure to add additional heat shrink along the whole wire and connector to ensure a good strong and protected connection.
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Reviewed in the United States on March 29, 2026 by Hunter S.
Number of Items: 120
Worked well when new but after 6 months or so the solder on the remaining ones stopped melting at all. Ended up throwing more than half of them away because they simply stopped reacting to heat.
Reviewed in the United States on January 6, 2026 by J Lisle