Heat Shrink Wire Connector Kit – Waterproof Marine Butt & Spade Crimp Terminal Assortment

Do your wiring right the first time with this Heat Shrink Waterproof Wire Connector Kit — a complete assortment of marine-grade crimp terminals with adhesive-lined heat shrink insulation that seals out water, salt, and corrosion. Whether you're splicing nav light wires, repairing trailer harnesses, or rewiring a helm, this kit gives you the right connector on hand every time.

Key Features

• Fully Waterproof Seal: Adhesive-lined heat shrink insulation melts and flows when heated to create a fully sealed, corrosion-proof connection.
• Complete Assortment: Includes butt connectors, ring terminals, spade terminals, and male/female disconnects in a range of wire gauge sizes — everything you need for mixed wiring jobs.
• Marine-Grade Construction: Tinned copper barrels resist corrosion in saltwater and marine environments.
• Color-Coded by Gauge: Red, blue, and yellow insulation follows industry-standard color coding so you can grab the right size at a glance.
• Professional Results: Meets standards for marine, automotive, and RV wiring repairs — the right choice for work that needs to hold up long-term.
• Strain Relief Built In: Heat shrink jacket reinforces the crimp and prevents wires from pulling loose at the joint.
• Organized Storage Case: Comes in a sorted container so your connectors stay sized and ready to grab.
• Easy to Apply: Strip, crimp, and shrink with a heat gun — adhesive activates as the tubing contracts for a clean, sealed finish.

Ideal For

• Marine wiring repairs and installs — nav lights, bilge pumps, livewells, stereos, fish finders
• Battery cable and accessory circuit terminations
• Trailer wiring and submersible trailer light connections
• Automotive, truck, and powersports electrical repairs
• RV, camper, and overland 12V wiring
• Outdoor lighting, solar, and landscape wiring
• Any splice or terminal that will see moisture, spray, or weather exposure

Specifications

• Type: Heat Shrink Insulated Crimp Terminal Assortment
• Included Connector Styles: Butt connectors, ring terminals, spade terminals, male/female disconnects
• Conductor Material: Tinned copper
• Insulation: Adhesive-lined polyolefin heat shrink
• Color Coding: Industry-standard red / blue / yellow by wire gauge
• Application Method: Crimp + heat gun

Pro Tip

For the strongest, most weatherproof results, use a hot air gun (not an open flame) and heat evenly until the tubing fully shrinks and you see the adhesive flow out the ends of the connector. That's your signal that the seal is complete.

What's in the Box

• Assorted heat shrink wire connectors — quantity per selected pack size
• Organizer / storage case