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Ancor 321403 Heat Shrink Ring Terminal 8 AWG 1/4 Inch Stud 3-Pack

Manufacturer

Ancor

<h3>Ancor: The Standard in Marine Grade® Electrical Wiring</h3><p>When it comes to marine electrical systems, few names carry as much weight as Ancor. For over four decades, Ancor has held its position as the originator and market leader of <strong>Marine Grade®</strong> wire and wire management solutions. What sets Ancor apart is not just longevity — it is a relentless commitment to engineering products specifically for the harshest environments on earth: saltwater, intense UV exposure, engine-bay vibration, and extreme temperature swings that would destroy ordinary electrical wire.</p><p><a href="/7231-ancor-wire-cable-201198">Ancor wire and cable</a> forms the backbone of countless boat electrical systems, and for good reason. Every conductor is built from tinned copper stranding, a critical distinction from standard bare copper wire. Tinning each individual strand electroplates it with a protective layer that guards against the corrosion and electrolysis that can silently wick through unprotected wire and cause total system failure. The proprietary premium vinyl insulation stays flexible even in extreme cold down to -40°F, while simultaneously resisting saltwater, battery acid, oil, gasoline, and ultraviolet radiation.</p><p>Ancor products are manufactured to precise specifications and designed to meet UL, ABYC, NMMA, and USCG standards — and in many cases exceed them. This industry involvement means that when you wire a boat with Ancor, you are building to a standard recognized by the U.S. Coast Guard, the American Boat and Yacht Council, and the National Marine Manufacturers Association.</p><p>The Ancor catalog spans a comprehensive range of marine electrical needs. Their <a href="/7231-ancor-primary-wire-10128">primary wire</a> is available across a full spectrum of gauges and in every color recommended by ABYC standards, making circuit identification straightforward and code-compliant. For high-current applications like engine starting and battery banks, Ancor's <a href="/7231-ancor-battery-cable-2500">battery cable</a> uses ultra-flexible Type 3 stranding that makes routing heavy-gauge conductors through tight bilge spaces far more manageable. Completing the connection, Ancor's <a href="/7231-ancor-battery-lugs-200145">battery lugs</a> are manufactured from 100% heavy-duty annealed tinned copper to maximize current flow while resisting the corrosive marine atmosphere at every terminal point.</p><p>Beyond conductors, Ancor's product ecosystem includes terminals, connectors, heat shrink tubing, cable ties, and professional installation tools — all engineered to work together as a unified system. Whether you are rewiring a center console from scratch or making targeted repairs to an aging offshore cruiser, Ancor provides the components to do the job right the first time.</p><h3>Why Ancor Is the Go-To Brand for Marine Electricians</h3><ul style="list-style:disc"><li><strong>Tinned Copper Construction:</strong> Every strand is individually electroplated to fight corrosion and electrolysis at the conductor level.</li><li><strong>Proprietary Insulation:</strong> UV, saltwater, acid, oil, and abrasion resistance rated at 600 volts and 221°F dry / 167°F wet.</li><li><strong>Standards Compliance:</strong> Meets and exceeds UL 1426, ABYC, NMMA, and USCG (CFR Title 46) requirements.</li><li><strong>Complete System Approach:</strong> Wire, cable, terminals, connectors, lugs, and tools all designed for compatibility.</li><li><strong>ABYC Color Coding:</strong> Full range of color options ensures proper circuit identification per industry standards.</li></ul><p>From weekend fishing boats to long-range bluewater cruisers, Ancor's Marine Grade® product line delivers the reliability that on-the-water safety demands. Explore the categories below to find the right Ancor solution for your next electrical project.</p>

Part Number

321403
09/16/2036 7:36 AM
Sale Price

$7.34

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The Ancor 321403 heat shrink ring terminal provides professional-grade electrical connections for marine and automotive applications. Designed for 8 AWG wire with a 1/4 inch stud size, this 3-pack delivers reliable, watertight performance in demanding environments.

Advanced Heat Shrink Technology:

These terminals feature heat-activated adhesive built directly into the heat shrink tubing sleeve. When heated with a heat gun, the adhesive melts and flows to create a complete environmental seal around the wire connection, protecting against moisture, salt spray, and corrosion.

Key Features:

  • 8 AWG wire capacity with 1/4 inch stud opening
  • Dual-wall construction with adhesive-lined heat shrink tubing
  • Forms watertight seal when properly heated
  • Superior vibration and strain relief compared to standard terminals
  • Tinned copper construction resists corrosion
  • Crimped and heat-sealed connection for maximum reliability
  • UL Listed and meets or exceeds industry standards

Installation:

Strip wire to proper length, crimp terminal onto conductor using appropriate crimping tool, then apply heat evenly with a heat gun until adhesive flows and tubing fully shrinks around the connection. The transparent tubing allows visual confirmation of proper adhesive flow.

What's Included:

Three (3) heat shrink ring terminals

Ideal for marine electrical systems, automotive wiring, RV applications, and any environment where moisture protection and vibration resistance are critical.

A very satisfactory experience. The price I paid was the lowest I found on the internet for this product. Ordering was easy, and without hassle. My order was shipped promptly and arrived sooner than I expected. Order date to receipt was only 6 days

This is my first order with you , so I will see how it goes.

Best prices, Super fast shipping!

So far so good

Good

Easy checkout. Easily found the part.

Very fast with the Amazon pay option

I received the order quickly and was pleased that the floor liners fit my vehicle well.

Fast and easy !

Best prices anywhere.

VERY GOOD

Fast and easy, best price on the web for what I ordered.

It was easy but shipping could be cheaper

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