Search  for anything...
Kuject

Kuject 350PCS Solder Seal Wire Connectors, Self-Solder Heat Shrink Butt Connector Solder Sleeve Waterproof Insulated Electrical Butt Splice Wire Terminals for Marine Automotive Boat Truck Wire Joint

    • Based on 38,073 reviews
Condition: New
Checking for product changes
$19.19 Why this price?
Save $4.80 was $23.99

Buy Now, Pay Later

As low as $4 / 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

This item is eligible for return within 30 days of receipt

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 Thursday, Nov 7
Order within 5 hours and 16 minutes
Available payment plans shown during checkout

Size: 350PCS


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.
  • 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.

Color: RED BLUE YELLOW WHITE GREEN


Connector Type: Butt Splice


Terminal: Ring Terminal


Brand: Kuject


Temperature Rating: 221 degree fahrenheit


Product Dimensions ‏ : ‎ 9.96 x 7.09 x 0.71 inches; 9.91 Ounces


Item model number ‏ : ‎ SS350


Date First Available ‏ : ‎ September 8, 2022


Manufacturer ‏ : ‎ Kuject


Country of Origin ‏ : ‎ China


Best Sellers Rank: #153 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 38,073 ratings


Frequently asked questions

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

  • 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.

Similar Products

Top Amazon Reviews

    • Revolutionary
Size: 400PCS
These are incredible. I have used these now for multiple applications, from a car to sprinkler wires to vending machines. Just carry a heat gun and short extension cord for most places and you're set. You do strip the wires farther than you usually would with a crimp. The only thing I will say somewhat as a warning is that they work way better with stranded wire than solid wire. I have had a couple instances where solid wire pokes a hole in the coupler and I have to start over. Other than that, these are easy to use, guarantee a solid connection, go waterproof, and make it so that the connection isn't a massive piece of plastic that you will be able to see even under shrinkwrap. If you cover the wire with shrinkwrap afterwards, you won't even notice that there is a splice in the wire ... show more
Reviewed in the United States on December 27, 2023 by Josiah Volz
    • Kuject 120PCS Solder Seal Wire Connectors - never knew I needed them
Size: 120PCS
I bought these after trying to rewire a trailer- replacing all of the lights. I started and got about halfway through and got sick of soldering and then using heat shrink tubes etc to join wires. I saw this product as my brother had a kit of these and it literally takes 20 seconds to not only connect wires but also watertight seal them. So far so good and my trailer is working like a charm. The first half of the trailer took me 1.5 hours, and then second half took around 15 minutes- it makes it so simple. I also installed a new car stereo in my daughter's vehicle and these were versatile enough that I could find connectors that were much smaller than what I used on the trailer wiring. I was able to join many different wires in minutes, and I am confident that it will stay joined better than the twist connectors I always used previously. You can either use these with a heatgun or a targeted lighted- but basically you have to get it hot enough to melt the solder in the middle of the connector- when that melts it creates a seal, and then the outer plastic tub shrinks to create a nice seal (also cosmetically pleasing- much more than the twist connectors.) I have seriouslly loved having these around and plan to use them consistently on my audio projects or low voltage projects in the future! ... show more
Reviewed in the United States on September 25, 2023 by Scottjl32
    • THE JURY IS STILL OUT
Size: 200PCS
I THINK THESE WORK PRETTY WELL. YOU HAVE TO BE VERY SPECIFIC WITH THEM. I AM NOT SURE HOW MUCH THE SOLDER MELTS WITH A HEAT GUN. SLIDE THE UNIT ON WIRE**TWIST THE WIRES TOGETHER**SLIDE THE UNIT ON THE WIRE AND HEAT THE HECK OUT OF IT**AND OH I FORGOT YOU NEED TO PUT SHRINK TUBING ON AT THE BEGINNING SLIDE IT UP ON THE CONNECTION AND SHRINK THE HECK OUT OF IT. THE CONNECTION SEEMS GOOD AND DIFFICULT TO PULL APART. ... show more
Reviewed in the United States on January 4, 2024 by Danny R. Guill
    • The Perfect Solution for Waterproof, Insulated Connections!
Size: 200PCS
I recently purchased the Kuject 200PCS Solder Seal Wire Connector Kit and I am extremely impressed with the quality and performance of these connectors. Firstly, the variety of connectors included in this kit is fantastic. There are various sizes. This allows me to customize my connections to fit my specific needs. The connectors themselves are very easy to use. The solder seal technology makes it quick and simple to create waterproof, insulated connections. I have used these connectors for various wiring projects, including outdoor lighting and Motorcycle wiring, and have had no issues with water or corrosion. The included storage case is a nice touch. It keeps everything organized and makes it easy to find the connector I need. Overall, I highly recommend the Kuject 200PCS Solder Seal Wire Connector Kit. It is a comprehensive solution for all your wiring needs and the quality is outstanding. The solder seal technology is a game-changer and makes it easy to create reliable, waterproof connections. ... show more
Reviewed in the United States on January 6, 2023 by Kyle
    • So easy to use and work well
Size: 120PCS
These make putting two ends of a wire together so easy. Just insert each end to where they meet in the middle inside by the metal part and then crimp. Next step is to heat up the ends and they seal around the cable to secure the connection further. Love these. Now I don’t have to always solder.
Reviewed in the United States on December 11, 2023 by Chad Sanfilippo
    • Fast and effective way to achieve reliable waterproof connections.
Size: 200PCS
Although the instructions recommend using a hot air blower with a curved deflector on the end to concentrate heat on these spices, I use a tiny butane torch. It's fast, but it's also easy to quickly overheat the plastic and burn it. Learning how far to keep the butane heat away from the splice is simply a matter of practice. I like the spices this makes, and I like the fact that it has built in shrink wrapping on both sides to keep water out. I've used this for making Fast electrical spices in my boat when adding or replacing accessories. By itself it's nothing, but once you add an appropriate hot air heating source to focus on the spices and melt the solder and cause the heat shrink to retract, you've got a great product. ... show more
Reviewed in the United States on October 21, 2023 by Re Vue
    • Great alternative to butt connectors!
Size: 200PCS
I used to use butt connectors but theyre a pain to use and occasionally would pull apart. These work SO GOOD compared to butt connectors. I did a couple test wires to start with and no matter how hard i tried i couldnt pull them apart. Im very confidant in these and have been using them extensively since ordering them for wiring repairs on old cars. All you need is wire strippers and a heat gun. ... show more
Reviewed in the United States on December 19, 2023 by Justin Stewart
    • Just okay
Size: 200PCS
Ordered these after having seen another similar name brand version on a commercial. I haven't tried the more expensive name brand version so I have no basis for comparison, but I think perhaps the concept is better than this actual product. Some of the connectors worked okay, but around half of them so far have failed during installation. I tried using different sources of heat to activate the solder & heat shrink and what seems to happen around half the time is that the heatshrink plastic winds up melting before the solder inside reacts as intended. ... show more
Reviewed in the United States on November 4, 2023 by Thomas Howard

Can't find a product?

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