Home Products Heat Shrink Butt Connector 12-10GA

Order Any Quantity

No Order Minimum

In-Stock Items Ship Same Day

Quality Guaranteed

Heat Shrink Butt Connector 12-10GA

Heat Shrink Butt Connector 12-10GA

CHSB

$0.42

| /

Waterproof butt connector for joining two 12–10 AWG stranded copper wires end to end. The adhesive-lined heat shrink sleeve melts and seals around the wire insulation when heated, blocking moisture, salt and road spray from reaching the crimp. Made in USA.

Use it for: splicing heavier branch circuits such as power feeds, fuel pumps, winch controls, inverter leads and pump wiring on boats, trailers, RVs, truck and off-road wiring, underground landscape lighting and anywhere a splice sees water, washdown or vibration.

Choose something else if: the splice stays dry and indoors — a Nylon Butt Connector 12-10GA crimps faster with no heat gun. For lighter wire, use the Heat Shrink Butt Connector 16-14GA. Install with a ratcheting crimper, then heat until the adhesive shows at both ends.

Priced per piece — order any quantity. See all butt connectors.

• Wire Gauge Range: 12-10 AWG stranded copper only
• Connector Type: Butt Connector
• Insulation Material: 3M Type MW adhesive-lined polyolefin heat shrink tubing
• Temperature Rating: -55°C to 125°C (-67°F to 257°F)
• Waterproof: Yes (when properly heat-shrunk)
• Terminal Material: Pure copper with tin plating
• Barrel Construction: Brazed barrel for uniform crimping
• Tubing Type: Translucent semi-rigid polyolefin with adhesive lining
• Installation: Requires heat gun or torch to activate adhesive and shrink tubing
• Made in USA

• Marine Electrical Systems - Distribute power to navigation lights, bilge pumps, and electronics in boats where saltwater exposure requires waterproof, corrosion-resistant connections with hermetic sealing.

• Underground Outdoor Lighting - Create junction points for landscape lighting, pathway lights, and irrigation control wiring buried underground where moisture protection is critical for long-term reliability.

• Well Pump & Submersible Systems - Connect control wiring and power distribution in well pumps and submersible applications where water immersion and pressure require completely sealed connections.

• Trailer & RV Exterior Wiring - Distribute power to running lights, brake lights, and marker lights in exposed locations where road spray, weather, and vibration demand waterproof protection.

  • Free Shipping on orders $50+
  • Orders placed before 3pm PST ship same day
  • 30-day no-hassle return
  • Buyer may be liable for return shipping charges

You may also like

Need More Parts for Your Project?

Explore our full catalog of professional-grade electrical supplies

Shop by Category

CABLE MANAGEMENT

Cable Ties Cable Clamps Grommets Split Loom Spiral Wrap

TERMINALS

Ring Terminals Spade Terminals Butt Connectors Quick Disconnects Copper Lugs Bullet Terminals

WIRE & CABLE

Primary Wire Battery Cable Trailer Wire Bonded Primary Wire Battery Lugs

WIRE CONNECTORS

Twist-On Connectors Quick Splice Pigtail Connectors Wago Push In Connectors

HEAT SHRINK

Single Wall Heat Shrink Dual Wall Heat Shrink

SWITCHES

Toggle Switches Rocker Switches Push Button Switches Indicator Lights

POWER DISTRIBUTION

Split Bolts Mechanical Lugs Aluminum Reducers Terminal Blocks