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Sopoby

120PCS Solder Seal Wire Connectors - Sopoby Heat Shrink Waterproof Solder Butt Connector Kit Insulated Automotive Marine Electrical Wire Terminals

  • Based on 15,303 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, May 17
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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

Color: Yellow, Blue, Red, White


Connector Type: Solder


Contact Material: Copper


Insulation Material: Polyolefin


Terminal: Butt Terminal


Brand Name: Sopoby


Model: Sopoby334


Manufacturer: Sopoby


Unit Count: 120 Count


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


Color: Yellow, Blue, Red, White


Connector Type: Solder


Terminal: Butt Terminal


Temperature Rating: Working Temp -67℉ - 257℉


Maximum Voltage: 600 Volts


Contact Material: Copper


Insulation Material Type: Polyolefin


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


Gauge: AWG 26-10


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 17

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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Similar Products

Top Amazon Reviews

    • Quick, clean, and waterproof—solid value for everyday wiring.
Size: 120PCS
I’ve used these Sopoby solder seal connectors across multiple projects—vehicle mods, electronics tweaks, even a few reptile habitat upgrades—and they’ve held up well. The dual-wall design with hot melt adhesive inside gives a strong seal, and the solder ring melts cleanly with a heat gun (skip the lighter unless you like uneven results). Color-coded sleeves make it easy to match wire gauges (AWG 26–10), and the included case keeps everything organized. Once shrunk, the connection is tight, waterproof, and surprisingly durable—even in outdoor or high-humidity setups. Just make sure to heat evenly and rotate the connector for a proper seal. If you want fast, reliable wire joins without crimping tools or messy soldering, this kit delivers. Not fancy, but functional—and that’s what counts. ... show more
Reviewed in the United States on August 29, 2025 by TiTanRage
    • Great product
Size: 250PCS
One of my go to wire parts. Works perfectly in water and mud!
Reviewed in the United States on February 25, 2026 by Ryan Rogers
    • Good quality electrical connection
Size: 120PCS
Review Image by jonathan
Extremely easy to use great connection water tight I highly recommend this affordable value for your wiring needs
Reviewed in the United States on March 22, 2026 by jonathan
    • Simple to use.vey secure.
Size: 250PCS
Very easy to install. Heat gut made it easy to melt jointing sauder. Technician ask were I bought them at. He ordered for his shop too.
Reviewed in the United States on August 31, 2025 by S
    • easy to use and works as described
Size: 120PCS
I've never used this type of wire connector before, but I connected wires with four of them without any issues. they work as expected. I also bought this heat gun, B0CHVDL25P, because of another review suggesting using a reflector, which I didnt have. My only negative opinion of them is wishing they had more solder or some type of indicator when the joint is secure because I was unable to see the solder melt and just guessed when it was complete. ... show more
Reviewed in the United States on November 14, 2025 by Kindle Customer
    • Great Product
Size: 120PCS
I like these connectors. They are well made and handle the heat.
Reviewed in the United States on March 23, 2026 by Thomas J. Reed
    • Great product if you do much wiring
Size: 120PCS
These things work so good! And very sturdy connection! All you need it a small torch. A lighter will work but torch is better
Reviewed in the United States on January 4, 2026 by Kevin
    • 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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