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[Lifetime Warranty] 12-10 AWG Yellow Solder Seal Wire Connectors | Pack of 200

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$20.40
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12-10 AWG Yellow Solder Seal Wire Connectors

Key Features

  • Color Code: Yellow
  • Wire Size: 12-10 AWG (4.0-6.0 mm²)
  • Material: Polyolefin tubing with adhesive lining
  • Solder: Integrated low-temperature solder ring
  • Sealing: Creates a waterproof and insulated connection
  • Design: Transparent sleeve allows for visual inspection of the connection
  • Operating Temperature: -55°C to 125°C
  • Solder Melting Temperature: Begins melting at 138°C

Replaces / Cross-Reference Part Numbers

  • A universal alternative to traditional butt splices, crimp-on terminals, and separate solder/heat shrink methods.
  • Used in place of non-sealed connectors in applications requiring environmental protection.

Compatibility & Fitment

  • Fits 12, 11, and 10 AWG solid or stranded copper wires.
  • Suitable for DC and low-voltage AC applications including automotive, marine, industrial controls, and outdoor wiring.

When to Replace

  • Use for creating new, permanent wire splices in harsh environments.
  • Use for repairing damaged, frayed, or corroded wiring sections.
  • Replace non-insulated or failing connectors that are exposed to moisture, vibration, or contaminants.

Installation Tips

  • Strip approximately 1/3 inch (8mm) of insulation from each wire end.
  • Insert wires into the connector, ensuring the stripped ends overlap within the central solder ring.
  • Apply heat evenly with a heat gun, focusing first on the center solder ring until it melts and flows.
  • Continue applying heat to both ends of the tube until it shrinks and the adhesive lining seals the wire insulation.
  • Allow the connector to cool completely before handling or applying stress.
  • Visually inspect the connection through the clear tubing to confirm solder flow and a complete seal.
  • Perfect Fit

    Perfect Fit

    Ideal for vehicles exposed to various weather conditions, motorcycle wiring, boat wiring, and other marine applications
  • Premium Quality

    Premium Quality

    Feature a durable tinned copper barrel that resists corrosion, ensuring that wires remain securely in place
  • Saving Solution

    Saving Solution

    Revive your home appliances affordably with BlueStars' DIY parts. Our savings solution turns repairs into simple, cost-effective tasks
  • Simple Installation

    Simple Installation

    BlueStars Heat Shrink Wire Connectors offer effortless installation, simplifying the process of creating durable wire bonds.
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FAQ

These yellow solder seal connectors are specifically sized for 12-10 AWG (American Wire Gauge) wire. Using them on smaller gauge wire may result in a loose connection, while larger wire will not fit into the connector barrel.
You will need a heat gun with a heat-shrink nozzle attachment to properly melt the solder ring and shrink the tubing. A standard lighter can be used in a pinch, but a heat gun provides a more even, professional seal.
The connection is complete when the solder ring has fully melted and flowed into the wire strands, and the outer adhesive-lined tubing has shrunk tightly around the wire insulation. You should see a small amount of adhesive bead out from the ends of the tubing, indicating a waterproof seal.
Yes. The inner adhesive lining creates an IP67-rated waterproof seal once heated, making these ideal for marine environments, automotive engine bays, and other outdoor applications where moisture protection is required.
Yes, these are excellent for high-vibration environments. Because the solder creates a solid, fused electrical bond and the heat-shrink tubing provides strain relief, the connection is significantly more durable than standard crimp-only connectors.
Yes. You should strip approximately 1/3 to 1/2 inch of insulation from the ends of your wires. Ensure the bare copper strands are clean before inserting them into the connector so that the solder can properly wet and bond to the metal.