Kuject 160PCS Solder Seal Wire Connectors Kit, Waterproof Solderless Heat Shrink Butt Terminal Insulated Electrical Butt Splice for Automotive Marine Boat Wire Joint
Condition: New
Buy Now, Pay Later
As low as
$2
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
In Stock.
Arrives
Wednesday, Mar 25
Recently Viewed
Number of Items: 160
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
Features
- Time Saver and Easy Process - quick and easy repair for decent connections in the field off-roading, automotive, boating, camping, rewiring lights and so on.
- 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.
Product Dimensions : 8.07 x 4.33 x 0.71 inches; 4.16 Ounces
Item model number : WT160
Date First Available : June 13, 2019
Manufacturer : Kuject
Best Sellers Rank: #274 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #1 in Butt Terminals #87 in Electrical Equipment
#1 in Butt Terminals:
#87 in Electrical Equipment:
Customer Reviews: 4.6 out of 5 stars 33,700 ratings
Color: RED BLUE YELLOW WHITE
Connector Type: Solder
Contact Material: Copper
Insulation Material: Polyolefin
Terminal: Butt Terminal
Color: RED BLUE YELLOW WHITE
Connector Type: Solder
Contact Material: Copper
Insulation Material: Polyolefin
Terminal: Butt Terminal
Material: Copper
Brand: Kuject
Specification Met: Iatf169492016
Temperature Rating: 80 to 150 C
Product Dimensions: 8.07"L x 4.33"W x 0.71"H
Maximum Voltage: 12 Volts (DC)
Number of Items: 160
Unit Count: 1 Count
Manufacturer: Kuject
Connector Gender: Male
Item Weight: 4.5 ounces
Item model number: WT160
Date First Available: June 13, 2019
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Mar 25
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
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.
...
show more
Reviewed in the United States on June 25, 2025 by Brandon S.
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.
...
show more
Reviewed in the United States on December 14, 2025 by Lyubomir N. Kolev II Lyubomir N. Kolev II
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: 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.
...
show more
Reviewed in the United States on February 8, 2026 by Mark Goewey
Number of Items: 120
Love this shrink wrap. I cut low voltage wires for my outdoor lights. Used the shrink wrap and it worked like a charm great value got a good product. Kept my wires intact and safe from the elements
Reviewed in the United States on February 26, 2026 by J. Rosario
Number of Items: 200
I used them on a wheelchair crane project, and they worked as advertised, they shrank formed a good bind and contact. For the price I cannot complain.
Reviewed in the United States on February 4, 2026 by packamcquack
Number of Items: 200
Pretty good product, satisfied purchase for sure. I know it’s meant for a heat gun and to solder wires together, but I did neither and it still performs pretty well. I used it as substitution to a slide connector onto a speaker terminal and it works great.
Reviewed in the United States on January 5, 2026 by Tupou Tatofi Tupou Tatofi
Number of Items: 120
These work great.. But.... You have to get the heat just right in order for the solder to melt. The big issue is they can not be used in direct sunlight. The covering will totally disintegrate in a month or so (se pic).... If used outdoors they need to be wrapped in tape or covered with a UV resistant shrink wrap.
...
show more
Reviewed in the United States on February 6, 2026 by M. 95776 M. 95776