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Solder Seal Wire Connectors, Heat Shrink Waterproof Solder Butt Connectors

  • Based on 15,413 reviews
Condition: New
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Availability: Only 9 left in stock, order soon!
Fulfilled by Amazon

Arrives Sep 18 – Sep 19
Order within 13 hours and 8 minutes
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Size: 120PCS


Features

  • PREMIUM SOLDER SEAL RING: Tubing reduces in size, the enough solder will melt and flow through the stripped wires, ensure a long lasting connection for your application
  • BETTER WATERPROOF SOLUTIONS: Double wall design, Hot Melt Adhesive inside ensures wires strongly connected and prevent wires slipping from the terminal; Polyolefin outside tubing provides insulation and improves pullout strength
  • ABRASION RESISTANCE HEAT SHRINKABLE TUBE: Premium tube materials are specially designed to be used in harsh environments. Protect the wires and cables from abrasion, cutting, scuffing and low impact situations
  • EXCELLENT WIRE CONTACT - The tin barrel provides increased current flow, and ensures less voltage drop, preventing wiring failures and reducing equipment downtime
  • WIDE APPLICATIONS: Excellent stability, water resistance and electrical conductivity provide durable connection for motorcycle, off-road vehicles, lawn tractors, RVs, fish finder and marine application. Widely used on multiple projects of your Christmas lights, ships with high waterproof requirements motorcycle stereo, boat electronics, equipment switches

Description

Sopoby is a professional home hardware company for over 8 years.We offer a wide range of door handle, wire connector and crimping tool. Note: We suggest the temperature that the hot air gun should set about:400-600℃ (752-1112°F) Strip wire insulator with a proper length and insert wires into the solder sleeve of proper size Twist the conductor together and move the connector to the middle of the conductor Evenly heat by a heat gun (better with reflector nozzle) until it melts MOTORCYCLE LIGHT DIY

Color: Yellow, Blue, Red, White


Connector Type: Solder


Contact Material: Copper


Insulation Material: Polyolefin


Terminal: Butt Terminal


Brand Name: Sopoby


Model: Sopoby334


Number of Items: 120


Item Highlight: 120PCS Insulated Automotive Marine Electrical Wire Terminals


Part Number: Sopoby334


Unit Count: 120 Count


Manufacturer: Sopoby


Color: Yellow, Blue, Red, White


Connector Type: Solder


Terminal: Butt Terminal


Temperature Rating: Working Temp -67℉ - 257℉


Maximum Voltage: 600 volts


Connector Gender: Male


Wire Diameter: 1.7 millimeters


Contact Material: Copper


Insulation Material Type: Polyolefin


Material Type: Polyolefin Tubing with Hot Melt Adhesive & Solder inside


Specification Met: ① Minimum Shrink Temperature 80℃, ② Minimum Temperature for Solder to Melt 138℃


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 18 – Sep 19

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.

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Top Amazon Reviews


  • Good product!
Size: 120PCS
I have used several of these connectors for different projects, including adding accessories to my RZR and fixing various appliances around the house. One of the standout features of this kit is its ease of use. The solder seal connectors create a strong, waterproof bond without the need for complicated crimping tools, making my work faster and more efficient. These connectors provide a secure connection that holds up well, even in tough conditions. I was particularly impressed with how well they performed when used on my RZR, where they faced exposure to vibrations, dirt, and moisture—yet the connections remained intact and reliable. For appliance repairs, the heat shrink design ensures a tight, insulated seal that has given me peace of mind knowing that the electrical work is protected. Overall, this kit has proven to be an invaluable addition to my toolkit. Whether for automotive, marine, or household electrical projects, these connectors have consistently delivered quality results. If you need dependable, high-quality wire terminals that are waterproof and easy to use, I highly recommend giving this product a try. ... show more
Reviewed in the United States on November 4, 2024 by Rosa

  • Perfect solution to create a permanent fix
Size: 120PCS
I discovered these solder seal connectors a few years back and keep ordering more because I use them for any 12v repair project. I have four on the road trailers including boats, utility and to haul a compact tractor so lighting issues are always coming up. These connectors are a great permanent solution. Highly recommend to avoid. ... show more
Reviewed in the United States on May 1, 2026 by Rob

  • Works
Size: 250PCS
Did the job
Reviewed in the United States on August 6, 2026 by Shane Summers

  • Worked Great for Me.
Size: 120PCS
I didn't have any problems with these, but I can see how some might. You have to read the instructions. If you just attack them, they may very well melt/burn too much. I used a small butane torch rather than my heat gun. It may not have made a difference, but I felt like I could direct the heat a little better. I'll try the gun another time. I also didn't blast the connector. Rather I took it slow. If you read the instructions, you will see that you DO NOT have to melt the tin ring. The solder is in the ring and will flow before the tin melts. If you wait for the tin to melt, you may very well go to far. However, the tin did melt on several of mine with no issue. The connection was strong. Another observation was the appearance that the clear material had melted through. I thought I had melted a couple because the material was so clear the it looked like to connection was exposed. But when I felt it and looked at it closely, there was still material covering the connection. Nothing was exposed. I've worked on everything from military aircraft to the car radio harness I used these on. I like them and will continue to use them. ... show more
Reviewed in the United States on May 6, 2020 by GTR0419

  • Multiple sizes
Size: 250PCS
Nice product
Reviewed in the United States on July 11, 2026 by Michael Marshall

  • Great product
Size: 120PCS
Used for stereo connections worked great
Reviewed in the United States on June 28, 2026 by Joseph Ivy

  • Godsend
Size: 120PCS
These make connecting wires so much easier, faster, and solidly connected. Slip them on, warm then up and voila.
Reviewed in the United States on July 30, 2026 by Dee

  • not great
Size: 250PCS
ok. not what I expected. solder does not work well/ and wires do not hold in place
Reviewed in the United States on September 1, 2025 by Maria

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