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Marinco 121A Pigtail Adapter 30A Locking to 50A Locking

Manufacturer

Marinco

<h3>About Marinco</h3><p>Marinco has built a decades-long reputation as one of the most trusted names in marine electrical systems. As part of the <strong>Navico Group</strong> — a global leader in marine, RV, and specialty vehicle technology — Marinco focuses exclusively on the electrical needs of recreational and commercial boaters, delivering products that combine reliability, safety, and ease of installation.</p><p>Boaters depend on their onboard electrical systems in ways that land-vehicle drivers rarely have to think about: shore power connections, battery management, wiper systems that work in salt air and spray, and safety signaling equipment. Marinco has engineered solutions for every one of these demands, earning its place as a go-to brand at marinas and on vessels ranging from modest day cruisers to serious offshore fishing boats.</p><h3>Shore Power &amp; Charging Systems</h3><p>One of Marinco&apos;s most recognized product areas is its shore power ecosystem. The brand&apos;s <a href="/11273-marinco-shorepower-accessories-200944">Shorepower Accessories</a> — including inlets, connectors, cords, and power management products — are designed to meet rigorous marine electrical standards, helping boaters safely draw power from marina pedestals. These products are engineered to resist the corrosion and moisture exposure that define the marine environment.</p><p>Complementing the shore power lineup, Marinco&apos;s <a href="/11273-marinco-battery-chargers-200141">Battery Chargers</a> are built specifically for the demands of marine use. Whether maintaining batteries during off-season storage or keeping house and starting batteries topped off at the dock, Marinco chargers provide reliable multi-bank charging with the safety features boaters require.</p><h3>Windshield Wiper Systems</h3><p>Visibility on the water can be a matter of safety, and Marinco takes it seriously with a full range of wiper products. The brand&apos;s <a href="/11273-marinco-windshield-wiper-motor-8824">Windshield Wiper Motors</a> are purpose-built for marine applications, engineered to withstand constant exposure to salt spray, humidity, and the vibration of an active vessel. Marinco also offers a comprehensive selection of <a href="/201195-windshield-washers-wipers-replacement-motors-marinco-11273">Windshield Washers, Wipers &amp; Replacement Motors</a> so boaters can maintain or upgrade existing systems without replacing the entire assembly — a practical and cost-effective approach for vessel owners.</p><h3>Marine Horns</h3><p>Safety signaling is a legal requirement on the water, and Marinco&apos;s <a href="/11273-marinco-horn-10051">Horns</a> deliver the sound output needed to meet U.S. Coast Guard requirements. Built for the marine environment, these horns resist corrosion and are designed for straightforward installation on a wide variety of vessel types.</p><h3>Why Choose Marinco?</h3><ul style="list-style:disc"><li><strong>Marine-specific engineering:</strong> Every product is designed and tested for the unique challenges of the marine environment — moisture, salt, vibration, and UV exposure.</li><li><strong>Industry standards compliance:</strong> Marinco products are built to meet relevant marine electrical standards, giving boaters peace of mind at the dock and underway.</li><li><strong>Broad compatibility:</strong> With a catalog of over 300 products, Marinco supports a wide range of vessel types and electrical configurations.</li><li><strong>Trusted by professionals:</strong> Marinco products are widely specified by marine technicians and OEM boat builders, a testament to their quality and dependability.</li></ul>

Part Number

121A
09/12/2036 8:01 AM
Sale Price

$127.17

In Stock (10+)

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Usually delivered within 2 days

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FREE SHIPPING

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Marinco 121A is a heavy-duty pigtail adapter that converts a 30 amp locking connection to a 50 amp locking connection, providing essential power compatibility for marine and RV applications. This adapter allows you to connect equipment with different amperage requirements safely and efficiently.

Key Features:

  • Converts 30 amp locking plug to 50 amp locking receptacle
  • Equipped with protective covers and sealing collars for wet location use
  • Marinco's unique sealing collar system creates a positive mechanical connection between adapter and cordset
  • Weather-resistant construction ideal for marine and outdoor environments
  • Durable design ensures reliable power delivery in demanding conditions

Designed specifically for applications requiring power conversion between different locking configurations, this adapter is an essential accessory for boaters and RV enthusiasts who need flexible power solutions at the dock or campsite.

Item was exactly as described and was delivered on time Friday after ordering it on Wednesday. Great job! Thanks.

good price

Quick and Easy

Very satisfied! My intake shipped on Friday and I received it on Tuesday. Not only super fast shipping, but a great deal to boot!

Awesome !

Quick and easy

I ordered a chrome brake light cover from Autoplicity 3 days ago and received it today. Their add showed the piece I wanted clearly and it arrived today exactly as I expected. It looks great on my new Dodge truck. Thanks for the great service!

You have what I need.

Good seller. Prompt email on ordering information. Fast shipping.

So far it has been a good experience

good, competitive pricing

Very quick and easy with PayPal..Bought here because they use PayPal

Quick and easy.

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