3M 7000031842 Heatshrink Butt Connector 25 Per Bottle

Product Description

The 3M 7000031842 is a seamless heatshrink butt connector sold in bottles of 25. It is designed to create insulated, weatherproof wire splices by combining a crimp connection with a dual-wall heatshrink sleeve. When heat is applied, the outer sleeve shrinks and the inner adhesive lining melts to seal out moisture, vibration, and contaminants. Electricians, marine technicians, HVAC service techs, and pool equipment installers use these connectors wherever a reliable, moisture-resistant splice is required on stranded or solid copper conductors.

These connectors are suited for residential, commercial, and light industrial wiring applications where standard open-barrel butt connectors fall short. Typical install scenarios include exterior equipment wiring, under-hood automotive and equipment harnesses, pool and spa control wiring, and any low-voltage control circuit exposed to moisture or thermal cycling. The seamless barrel construction eliminates the seam found on stamped connectors, reducing the risk of corrosion ingress at the crimp zone.

Key Features

• Seamless barrel construction reduces corrosion entry points at the crimp
• Dual-wall heatshrink sleeve with interior adhesive lining creates a moisture-resistant seal when activated
• Sold in bottles of 25 connectors for jobsite convenience
• Compatible with standard ratcheting crimp tools sized for the connector gauge
• Suitable for stranded and solid copper wire splicing in wet or exposed environments

Compatibility

Designed as an OEM-style replacement-grade heatshrink butt connector for use in residential, commercial, and light industrial wiring splice applications where moisture resistance is required.

Installation Notes

Installation should be performed by a qualified electrician or licensed trade professional in accordance with applicable NEC requirements. De-energize all circuits before making any splice connection. Use a calibrated ratcheting crimp tool appropriate for the wire gauge and connector size before applying heat. Apply heat evenly with a heat gun until the sleeve has fully shrunk and adhesive has flowed to the edge of the connector on both sides.

Technical Specifications

• Weight: 0.02 pounds
• Quantity per Bottle: 25
• UPC: 00051128589090
• Unit of Measure: Each
• Minimum Order Quantity: 25

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000031842