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Ancor 309203 Heat Shrink Butt Connectors 12-10 AWG Yellow Marine Grade 3-Pack

Manufacturer

Ancor

<p>For over 40 years, Ancor has been the industry leader for high-quality tinned copper Marine Grade® wire and cable. Founded with a singular mission to deliver electrical products capable of withstanding the harshest marine environments, Ancor has become the gold standard for boat builders, marine electricians, and automotive enthusiasts who demand uncompromising reliability in challenging conditions.</p><h3>Engineering Excellence for Extreme Environments</h3><p>What sets Ancor apart is their commitment to exceeding industry standards. Ancor Marine Grade™ wire and cable is manufactured from tinned copper stranding for maximum protection against corrosion and electrolysis. This electroplating process coats every individual strand with tin, preventing the corrosion that can compromise standard bare copper wire. The result is electrical wire that delivers consistent performance even when exposed to saltwater, battery acid, oil, and UV radiation.</p><p>The company's <a href="/7231-ancor-primary-wire-10128">primary wire</a> offerings showcase this engineering philosophy. Ultra flexible (Type 3) stranding resists fatigue due to vibration and flexing. Exceeds all UL 1426, US Coast Guard Charter boat (CFR Title 46) and ABYC standards. Available in multiple gauges and a full spectrum of colors to match proper wiring protocols, these products are essential for anyone building or maintaining electrical systems in demanding applications.</p><h3>Complete Wire Management Solutions</h3><p>Our extensive product line encompasses everything you need for your next wiring project, including wire, cable, terminals, connectors, wire management products, and hand tools. Beyond wire itself, Ancor has developed a comprehensive ecosystem of complementary products. Their <a href="/7231-ancor-wire-tie-17375">wire ties</a> feature UV-resistant construction that won't become brittle in harsh sunlight, while their terminals utilize double-crimp designs for maximum strain relief and connection integrity.</p><p>For vehicle protection needs, Ancor even offers <a href="/7231-ancor-car-cover-1020">car covers</a> engineered to guard against the elements. Meanwhile, specialized components like <a href="/7231-ancor-disc-brake-rotor-1896">disc brake rotors</a> and <a href="/7231-ancor-automatic-transmission-control-solenoid-7752">automatic transmission control solenoids</a> demonstrate the brand's expanding reach into broader automotive applications.</p><h3>Trusted by Professionals, Accessible to All</h3><p>All of our products are built for the harsh marine environment and conform to industry standards. Whether you're rewiring an entire vessel, making repairs to an RV electrical system, or upgrading automotive wiring harnesses, Ancor provides the durability and performance needed for installations that last. The brand's reputation rests on delivering consistent quality across every product category, ensuring that whether you're purchasing 100 feet of wire or a single connector, you're getting the same commitment to excellence that has defined Ancor for more than four decades.</p>

Part Number

309203
06/21/2036 1:13 AM
Sale Price

$4.93

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Ancor 309203 heat shrink butt connectors provide professional-grade electrical connections for marine, automotive, and powersports applications. Designed for 12-10 AWG wire, these yellow-coded connectors feature dual-wall construction with heat-activated adhesive lining that creates a watertight, corrosion-resistant seal.

Key Features:

  • Cross-linked polyolefin tubing resists burning and provides superior strength compared to PVC alternatives
  • Heat-activated adhesive lining creates an impervious seal against salt water, oil, acids, and sunlight
  • Marine-grade nylon insulator offers excellent resistance to UV exposure, chemicals, vibration, and cut-through damage
  • Pure tinned copper construction for maximum current flow and corrosion resistance
  • Brazed seam construction ensures maximum mechanical strength
  • Highest shrink ratio—shrinks to 1/3 original size for tight, secure fit
  • UL Listed and CSA Recognized for quality assurance

Specifications:

  • Wire gauge range: 12-10 AWG (3-5mm)
  • Shrink temperature: 257°F (125°C)
  • Operating temperature range: -40°C to 110°C
  • Color: Yellow
  • Quantity: 3 connectors per pack

These connectors provide superior strain relief and environmental protection, making them ideal for harsh marine environments and demanding powersports applications where reliability is critical.

Products specifications

American Wire Gauge (AWG)

12-10 AWG

Color

Yellow

Material

Heat Shrink Tubing

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shopping was awesome and easy , items showed in stk, but delivery was over 9 days

I was a bit concerned buying from a online retailer I had not done business with before, but Autoplicity is now on my list of preferred vendors. I was sure there would be some problem, as the part I ordered was $73 cheaper than anywhere else online (too good to be true). Well, the part arrived super fast, and was exactly as I ordered. I did not hear from them immediately after ordering, but received confirmation and tracking info when the item shipped, which was two days after ordering. All in all, a great, money saving experience.<br><br>Update:<br>While I am still pleased with the service I received, I find it odd that Autoplicity emailed me and offered me a refund of $5 for writing a review. It has been a couple of weeks since I posted my review, and I have yet to see any credits on my credit card.

Excellent and very quick service. I could not find this product in stock from any other supplier so I kept hunting. I found Autoplicity and from now on they are the first company I will try. Thank you.

The magnaflow kit that I ordered was about $100 cheaper than any other site I could find. Shipping was fast, and relatively cheap too.

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