Search  for anything...

Kuject Heat Shrink Solder Seal Wire Connectors Kit 120PCS, Waterproof Butt Connector Heat Shrink Electrical Terminals, Insulated Solderless Wiring Splice Connectors for Marine Automotive Boat Truck

  • Based on 40,845 reviews
Condition: New
Checking for product changes
$7.99 Why this price?
Save $7.00 was $14.99

Buy Now, Pay Later


As low as $1 / mo
  • – 4-month term
  • – No impact on credit
  • – 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, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. 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 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: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Saturday, Nov 9
Order within 11 hours and 24 minutes
Available payment plans shown during checkout

Size: 120PCS


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: RED BLUE YELLOW WHITE


Gauge: 10,12,14,16,18,20,22,24,26


Connector Type: Butt Splice


Contact Material: Phosphor Bronze


Insulation Material: Polyethylene


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 7.87 x 3.94 x 0.67 inches; 3.84 ounces


Item model number ‏ : ‎ SS120


Date First Available ‏ : ‎ July 6, 2017


Manufacturer ‏ : ‎ Kuject


Country of Origin ‏ : ‎ China


Best Sellers Rank: #250 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #1 in Butt Terminals


#1 in Butt Terminals:


Customer Reviews: 4.5 4.5 out of 5 stars 40,845 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 9

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • These are a must have.
Size: 120PCS
Purchased these to complete a wiring job on a new car stereo. Very easy to use and made a solid, clean connection. Worked extremely well. Highly recommend them.
Reviewed in the United States on August 14, 2024 by Jody McClung

  • These are awesome! Wish I would've known about these sooner!
Size: 200PCS
Very easy to use and seal up tight. I used a small torch and it worked perfectly. I think you could also use a butane lighter and it would work just as well. The solder melted very easily. I was concerned the plastic would get too hot and melt but it holds up really well. When joining a lead connector wire (splicing 3 wires at the same connection) you have to step up to a larger connector and you need to press at the ends to help seal it up but I it appears to have a good seal against the elements. If it is being used on a boat trailer that is going to be going under water i would recommend a tight wrap of some other product over that connection, but for something that you are trying to keep elements out this is a great product. ... show more
Reviewed in the United States on May 23, 2024 by bjersery

  • Got to get it hot
Size: 160PCS
These are real convenient and do a decent job. My only complaint is the soldering them has a high melting point, so sometimes if you're not careful you can burn the plastic on the wire you're working with before the solder melts. So just be wary of that issue.
Reviewed in the United States on August 16, 2024 by Claudia R.

  • Works great, very easy to splice!
Size: 200PCS
I had to adjust the temp on my Milwaukee heat gun to choose about 3/4 full temp, then they worked great. The manufacturer recommends a reflector tip, but I'd worry too much about touching that tip to the connectors. Instead I prefer to use these with a narrow point tip. These will not work well with the mini heat guns used on heatstrink tubing, as they'll end up burning the plastic before they melt the solder. But a full-fledged heat gun with variable heat setting works great. ... show more
Reviewed in the United States on August 26, 2024 by cipher_nemo

  • Works perfectly!
Size: 120PCS
These have replaced my old crimp-type connectors. They are easy to install and provide a secure connection every time. I wish I had these 40 years ago. A very good product and I highly recommend them.
Reviewed in the United States on August 12, 2024 by Lee S

  • Pretty Cool Item
Size: 200PCS
Finally an improvement over the antique crimp butt connector.Very quick and easy to install and with the bonus of providing a waterproof connection. What’s not to like?
Reviewed in the United States on July 30, 2024 by J. Personett

  • works great for joining wire together
Size: 160PCS
works great for joining wires together. easy with a hot air gun, it holds great. no soldering required, just hot air gun and patiences
Reviewed in the United States on August 13, 2024 by Richard L Martin Sr

  • Short term for direct burial
Size: 120PCS
Bought this for in ground, 12v low voltage landscaping lights. Bought Mar 15, 2023. Not sure how long ago their failed, but the four of them I had in the kit, two completely failed and two were a loose connection and were replaced August 26, 2024. Notably, the copper was not corroded l, but instead the solder must not have melted so the connections physically separated. ... show more
Reviewed in the United States on August 27, 2024 by Robert Lerner Robert Lerner

Can't find a product?

Find it on Amazon first, then paste the link below.