Search  for anything...

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

  • Based on 41,868 reviews
Condition: New
Checking for product changes
$11.99 Why this price?
Save $12.00 was $23.99

Buy Now, Pay Later


As low as $2 / 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: In Stock.
Fulfilled by Amazon

Arrives Monday, May 5
Order within 10 hours and 2 minutes
Available payment plans shown during checkout

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


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


Connector Type: Butt Splice


Contact Material: Polyethylene


Insulation Material: Polyethylene


Product Dimensions ‏ : ‎ 8.07 x 4.33 x 0.71 inches; 3.92 ounces


Item model number ‏ : ‎ SS200CA


Date First Available ‏ : ‎ January 8, 2020


Manufacturer ‏ : ‎ Kuject


Country of Origin ‏ : ‎ China


Best Sellers Rank: #322 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #2 in Butt Terminals


#2 in Butt Terminals:


Customer Reviews: 4.5 4.5 out of 5 stars 41,868 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, May 5

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 exceeded my expectation.
Number of Items: 120
So, I actually ordered these by accident, but after I realized my mistake, I figured I would give them a try. I thought I bought crimp and seal connectors like I always use, but these are a low temp solder that melts with a standard heat gun. I used them last night on a replacement headlight connector in a Silverado and they worked like a charm. Cut the old connector off, installed the solder connection and the new pigtail, mate wires and slide the connector and hit it with a heat gun until the solder melts. EASY. I had my doubts at first because I figured the connector would melt before the solder made a real connection, but they worked like a charm. The connector shrunk nicely around the wire and the colored sealant melted into place and spread out and shortly after, the solder flowed into the wires. pretty slick to be honest. 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. They seem to be well made and look like the connection will hold up. ... show more
Reviewed in the United States on February 5, 2025 by Matthew P. Tebussek

  • Great for splicing, with extra confidence!
Number of Items: 120
The little metal piece melts the wires together, forming a nearly unbreakable bond. A standard ten bucks heat gun (I like the Flower Ocean one) will do the trick. Confidence in wiring is essential! This is a great kit with all the sizes you’ll ever need (in fact so many you’ll probably never even use a few of them). Another great value compared to the big box stores. ... show more
Reviewed in the United States on April 14, 2025 by Charles L Aronson

  • Got to get it hot
Number of Items: 160
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.

  • Love this product!
Number of Items: 120
I really love this product, especially once I get better at twisting the wires correctly so it slides right into it with a good solid connection. The quality is great as well! I used this today for sump pump connections in the basin and used a heat gun to seal the connections. I will definitely buy more of this and highly recommend it! The thickness of the plastic is great and doesn't allow the wire to poke through while heating it up, which is amazing! Highly recommend this product! My only request to the seller is to make a video that shows the wire-twisting step a bit longer and in more detail. It's an amazing product and great value for your money for sure! ... show more
Reviewed in the United States on March 26, 2025 by BamaBoyChris

  • Good set
Number of Items: 200
Good set, only complaint is they didn't work for all applications but, good to have around for the applications that it does.
Reviewed in the United States on April 27, 2025 by Anthony M

  • Amazing Product!
Number of Items: 120
These bud connectors are incredible!!! I first time using them cause my trunk wiring harness broke cause of another shop doing a poor quality repair! With doing wiring repairs i refer soldering is the best method of fixing wiring harness. Having shaky hands it's very difficult for me to do! This all i have to use is a head gun to melt the solder! Great product will definitely will do an update if anything changes!!!!! ... show more
Reviewed in the United States on April 3, 2025 by David Matsiuk David Matsiuk

  • 🔧 Secure & Waterproof Wire Connections Made Easy! 🌊
Number of Items: 120
The Kuject Heat Shrink Solder Seal Wire Connectors Kit is an essential tool for anyone needing reliable, durable electrical connections! ⚡ This 120-piece set includes waterproof butt connectors that are perfect for automotive, marine, boat, and truck wiring. The heat shrink design ensures a secure, insulated seal, while the soldering feature guarantees a strong, lasting connection. 🔒 Whether you're working on electrical repairs, installations, or custom wiring, these connectors provide a hassle-free, professional-grade solution. The waterproof quality makes them ideal for use in harsh environments, ensuring your connections stay safe and functional even in wet conditions. 🚗🚤 Highly recommend for anyone looking to improve the reliability and longevity of their electrical systems! ... show more
Reviewed in the United States on November 15, 2024 by David Houck

  • Seal sloder not as good as crimp, especially for small gauge.
Number of Items: 200
Nothing wrong with item but the this method of connecting wires, especially small wire (24-26 gauge) doesn;t seem that secure. There are youtube comparisons with resistance testing etc and it seems wire nuts and crimps is the best. You may need a crimper for 24-26 gauge and get crimps with heat shrink. I might toss these or donate them. ... show more
Reviewed in the United States on April 24, 2025 by Tsiakkos

Can't find a product?

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