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Marinco 174ARV 50A to 30A RV Generator Locking Adapter

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

174ARV
06/01/2036 1:50 AM
Sale Price

$33.47

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Marinco 174ARV is a heavy-duty generator power adapter designed to safely provide 30 amp service to your RV from a 50 amp generator power outlet. This pigtail-style adapter features Marinco's reliable locking design to ensure a secure connection during operation.

Key Features:

  • Converts 50 amp 4-prong generator outlet to 30 amp RV service
  • Locking connector design prevents accidental disconnection
  • Polarized specifically for RV applications
  • Integrated handle for easy plug and unplug operation
  • Durable weather-resistant construction for outdoor use
  • Pigtail configuration provides flexible connection

This adapter is essential for RV owners who need to connect their 30 amp RV electrical system to a 50 amp generator outlet, allowing you to utilize available generator power while maintaining proper amperage for your coach. The locking mechanism and robust construction ensure reliable power delivery in campground and off-grid applications.

It should be clearly noted that the Battery acid to activate this was not included. We had to purchase this elsewhere and the only size they had avail was a large package for an additional 20.00 of course we only needed about 8 to 10 oz. So now the rest of this will sit on a shelf forever... Otherwise the shipping time and product was fine.

great experience

great prices, great products

Thanks for the great service

I am actually looking for a 3.55 gear set for the '89 Toyota Land Cruiser, but I have had no luck in finding that ratio. If the 3.55 is available, please change to the 3.55 ratio.

excellent company

Had what I needed for the cheapest price. Thanks.

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