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Marinco 128A Generator Adapter 30A Female to 20A 125/250V Locking Male

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

128A
09/12/2036 2:06 PM
Sale Price

$26.22

In Stock (10+)

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The Marinco 128A generator adapter provides a reliable connection between your RV power inlet and generator power source. This adapter features a 30-amp 125V female connector and a 20-amp 125/250V locking 4-prong male plug, allowing you to connect your RV to generators with different outlet configurations.

Key Features:

  • 30-amp 125V female connector for RV power cord connection
  • 20-amp 125/250V locking 4-prong male plug (L14-20P configuration)
  • Polarized design specifically for RV applications
  • Heavy-duty molded construction for durability and weather resistance
  • Allows safe power transfer from generator to RV electrical system

This adapter is essential for RV owners who need to connect their 30-amp shore power cord to a generator equipped with a 20-amp locking outlet. The polarized design ensures proper grounding and safe operation. Marinco is a trusted name in marine and RV electrical products, known for quality connectors and adapters that meet demanding outdoor conditions.

Easy site to navigate

Easy to shop &amp; reasonable prices

Great prices and service.

Good so far hope it ships fast

easy &amp; quick

So far, so easy

Thanks vere easy

I am a first time buyer, and setting up the account to order was quick and easy. Parts arrived quickly, and all appear to be in order.

Easy process highly recpmmended, will be back for sure :-) !

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