Heat Shrink Butt Connectors

Prices from $5.29 - To $239.99


In stock online.
Model # 291294 | Mfg # 309103 | UPC # 91887307924

A fast, easy and waterproof way to join wires

Marine grade butt connectors make quick work of joining wires; and unlike their automotive counterparts they are able to stand up to the harsh marine environment. Ancor heat shrink connectors offer a watertight seal. A heat activated adhesive built into the sleeve of the heat shrink tubing seals the wires from the harsh marine environment and provides vibration and strain relief. The barrels are designed to tightly grip the wire with minimal effort. Wire specific sizing assures a strong connection. Spend less time working on your boat and more time out on the water. 

The Ancor Single Crimp Ratcheting Wire Terminal Crimper produces the proper crimp every time and gives you the confidence of a secure connection. ABYC (American Boat and Yacht Council) guideline recommends the use of ratcheting same-branded crimpers.

Key Features

  • Heat activated adhesive is built into the sleeve of the heat shrink tubing
  • Shrinks to form a watertight seal 
  • Tinned for corrosion resistance 
  • Pure copper for maximum current flow 
  • Brazed seam for maximum strength
  • Different from automotive terminals by being designed for marine environment
  • Insulators are easy to crimp and will not split
  • Barrels are designed to tightly grip wires with the least amount of effort
  • UL 486C listed and CSA recognized 
 WARNING: Cancer and Reproductive Harm -



Product Q & A


FREE DELIVERY to West Marine Stores

  • Available for ALL products including hazardous & truck freight items.
  • Ship to over 240 U.S. store locations.
  • Contiguous United States orders arrive in 7 - 10 days.
  • Hawaii and Alaska orders arrive in 10 - 16 days.
  • Expedited shipping is available for an additional fee.
  • Not available in Puerto Rico.

FREE SHIPPING on Orders over $49.00

  • Applicable on orders over $49.00 within the 48 contiguous United States.
  • Does not apply to Truck Freight.
  • No coupon code required.
  • Orders will be delivered within 3 - 7 business days.


We stand behind everything we sell. If at any time your West Marine purchase does not meet your expectations, you can return it for a replacement or refund. If you are a West Advantage Rewards member, you don't even need a receipt - we'll have a record of your purchase. Returns can be made via mail or in person at their nearest store location. If you are not a West Advantage Rewards member, we will first need to verify your purchase by receipt or other method.

We do carry a few items that cannot be returned. This includes: items with expiration dates that have expired such as flares, charts, annual publications; items registered to the user such as boats, motors, EPIRBs, PLBs, SPOT, Class B AIS, life rafts; customized items such as rigging, and boat covers, computer software and electronics charts. Other non-returnable items include carry-on air conditioners, generators and select electronics. We will help you contact the vendor for assistance or repair on product that cannot be returned to West Marine. Items containing hazardous material may only be returned to a West Marine store.

For additional inquiries, you may call Customer Service at 1-800-BOATING (262-8464).