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Marinco 6364CRN 50A Locking Connector 125/250V 3-Pole 4-Wire

Manufacturer

Marinco

<h3>About Marinco: Trusted Marine Electrical Innovation Since 1972</h3><p><strong>Marinco</strong> has been a cornerstone of the marine electrical industry for more than five decades. The brand traces its roots to 1972, when founder Bud Toly, frustrated by the poor quality of available marine electrical gear, set out to engineer something better from the ground up. That spirit of problem-solving and uncompromising quality has defined Marinco ever since. Today, the brand is part of the Navico Group — a global leader in marine technology — and continues to serve everyone from weekend bass anglers to commercial vessel operators and major OEM boatbuilders.</p><p><a href="/11273-marinco">Marinco</a> is best known as a world-class manufacturer of shore power systems, but its catalog spans far beyond that single category. The brand's engineers design products for the real-world punishment of salt, spray, and constant moisture — environments where inferior components fail quickly and safe, reliable electrical connections are non-negotiable. Industry involvement is baked into the brand's DNA: <a href="/11273-marinco">Marinco</a> actively participates on ABYC standards committees, helping shape the very regulations its products are built to exceed.</p><h3>Shore Power, Signaling, and Ventilation — Built for the Water</h3><p>At the core of Marinco's reputation is its shore power lineup: heavy-duty cordsets, inlets, outlets, and adapters engineered for both 30-amp and 50-amp applications. The patented EEL (Easily Engaged Lock) jaw-clamp system allows one-handed connection without the frustration of threaded locking rings, and many premium connectors feature built-in LED power indicators so boaters can confirm live power at a glance. Products are engineered to CSA and UL standards, and nickel-plated brass contacts are used throughout to resist the corrosion that plagues lesser marine connectors.</p><p>Beyond shore power, Marinco offers an impressive range of marine accessories that keep vessels safe and comfortable. The brand's <a href="/11273-marinco-air-horns-201608">air horns</a> are a staple on boats of all sizes, delivering the kind of authoritative, regulation-compliant signals that can genuinely protect lives on the water. And for boaters who want to keep cabin air fresh without running down their battery bank, Marinco's <a href="/11273-marinco-solar-cabin-vents-202545">solar cabin vents</a> from its trusted Nicro line provide around-the-clock ventilation powered entirely by the sun — and a built-in rechargeable battery when the sun goes down.</p><h3>Why Boaters Choose Marinco</h3><ul><li><strong>OEM Trust:</strong> Major boatbuilders specify Marinco electrical components from the factory, a testament to the brand's reliability standards.</li><li><strong>Standards Leadership:</strong> Active participation on ABYC committees means Marinco products don't just meet standards — they help write them.</li><li><strong>Marine-Grade Engineering:</strong> Every product is designed for salt air, vibration, and moisture, not just adapted from a land-based design.</li><li><strong>Complete System Thinking:</strong> With over 800 electrical products engineered to work together, Marinco makes it easy to build a cohesive, safe onboard electrical system.</li><li><strong>Decades of Refinement:</strong> Over 50 years of feedback from real boaters has shaped every product iteration, from connector geometry to diaphragm materials.</li></ul><p>Whether you're outfitting a new build, upgrading aging shore power hardware, adding a safety horn, or solving a below-decks ventilation problem, Marinco brings proven engineering and category-defining products to every corner of the job.</p>

Part Number

6364CRN
06/01/2036 12:55 AM
Sale Price

$111.09

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

Extend the life and improve the safety of your 50A shore power cord by replacing the boat side locking connector.

The Marinco 6364CRN is a corrosion-resistant replacement connector designed for 50-amp 125V/250V shore power cords. If your existing plug feels loose when inserted into the inlet or shows signs of corrosion, it can increase electrical resistance and create a potentially hazardous situation. This replacement connector provides a reliable solution with color-coded wire pockets and terminal screws that guide proper installation.

Key Features:

  • 50-amp NEMA SS2-50P locking connector for 125V/250V shore power systems
  • Internal self-centering cord clamp provides excellent strain relief
  • Color-coded terminal pockets and screws simplify wire installation
  • Dust seal keeps contaminants out of terminals
  • Accepts cable size: 1-3/16" diameter (6-4 AWG)
  • 3-pole, 4-wire grounding configuration
  • Durable nylon plug body with nickel-plated brass contacts
  • Stainless steel assembly screws resist corrosion
  • UL listed (File E57672) and CSA certified (File 81290)
  • Compatible with Marinco weatherproof covers (103ELN, 103RN - sold separately)
  • Backed by five-year warranty

This heavy-duty replacement connector is ideal for marine applications where reliability and corrosion resistance are essential. When paired with a Marinco weatherproof cover, your shore power connection will maintain a like-new appearance and performance.

Products specifications

Amperage

50 Amps

Type

Female Connectors

Voltage

125 Volts250 Volts

Warranty Details

Five Years

I just ordered and was fast.. just waiting to see how long they take to arrive

Good

Easy to search, good pricing.

Autoplicity must have sent my Airaid CAI within hours of my order because UPS delivered it right away. I even got it before I received an e-mail indicating the order had been processed or a notification of shipping e-mail. <br><br>The online advertised price seems to vary by about $20 and that means that you must monitor the site if you are to get the lower price. However, Autoplicity has arranged with BuySafe to give you the difference if you establish an account with them and go through the process. This process was not easy as there was an apparent database problem where the Autoplicity URL was not taken by BuySafe. A call to BuySafe got that worked out, I am hopeful that I will receive the refund promised via paypal. It looks like a good system if it works.<br><br>The bottom line is that Autoplicity offers the best online price by far and although my unfamiliarity with how they do things caused some confusion on my part, they do have a good order processing and price guarantee in place.

Very easy and quick ordering process

great store to deal with shipping is a little high but good at keeping me updated on my order

yes happy after a good customer serice helped with a price adjustment to my order. they did have good prices on most things, but it took some work to find the lowest price, so you do need to be a smart shopper.

I ordered fuel rails from autoplicity they had the best price around and shipped out fast I definitely plan on buying from them again

Nice to have shopping payment options with great prices

Good so far

Fast

first thing to pop up on google affordable

thanks it was simple

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