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Sierra AC12440 Marine Pigtail Adapter 50A to 30A 125/250V Male to 125V Female

Manufacturer

Sierra

<h3>About Sierra Marine Parts</h3><p>With more than 58 years of experience in the marine aftermarket industry, <strong>Sierra</strong> has earned its reputation as one of the most trusted names in boat engine components and marine supplies worldwide. From weekend anglers to commercial vessel operators, boaters rely on Sierra for dependable, precision-engineered parts that keep engines running at their best — whether they're heading out on a freshwater lake or battling open-ocean conditions.</p><p>Sierra's extensive catalog covers virtually every aspect of marine engine maintenance and repair. The brand is perhaps best known for its industry-leading line of <a href="/7570-sierra-gauges-200483">marine gauges</a>, offering accurate, durable instrumentation for monitoring critical engine parameters like speed, fuel level, oil pressure, and water temperature. Reliable gauges are the eyes of any vessel's helm, and Sierra's instruments are engineered to perform in the demanding marine environment where moisture, vibration, and saltwater exposure are constant challenges.</p><p>Keeping a marine engine healthy starts with proper lubrication, and Sierra's <a href="/7570-sierra-engine-oil-12138">marine engine oil</a> is formulated specifically for the unique demands of inboard and outboard powerplants. Marine engines operate under load profiles and cooling conditions very different from automotive applications, making purpose-built marine oil an essential part of any maintenance routine.</p><p>Sierra's breadth of <a href="/7570-sierra-engine-parts-accessories-200373">engine parts and accessories</a> makes it a go-to source for mechanics and DIY boaters alike. From water pumps and thermostats to belts, filters, and ignition components, Sierra produces OEM-quality replacements designed to fit a wide range of popular marine engine brands — helping boaters avoid costly dealer markups without sacrificing reliability.</p><p>One of the more specialized areas of Sierra's catalog is its lineup of <a href="/200133-manifoldsriserselbows-sierra-7570">manifolds, risers, and elbows</a> — critical exhaust cooling components on sterndrive and inboard engines. These parts are subjected to extreme heat and constant water flow, making quality and correct fitment absolutely essential for safe operation. Sierra manufactures these components to exacting standards to help prevent the kind of catastrophic failures that can result from worn or corroded exhaust hardware.</p><p>Rounding out Sierra's core fuel system offerings is a comprehensive selection of <a href="/7570-sierra-fuel-pumps-201310">marine fuel pumps</a>, designed to deliver consistent, reliable fuel delivery across a wide range of inboard and outboard applications. A failing fuel pump can leave a boat stranded far from shore, making preventive replacement with a quality Sierra component a smart choice for any boater.</p><p>In 2022, the Sierra brand expanded its footprint even further, incorporating well-established marine lines such as Shields and Moeller into a comprehensive aftermarket boating portfolio. Today, Sierra continues to innovate and grow its catalog, serving both marine and land-based applications with the same commitment to quality that has defined the brand for nearly six decades.</p>

Part Number

AC12440
09/19/2036 9:25 PM
Sale Price

$154.29

1 left at this price

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Product Details

The Sierra AC12440 pigtail adapter enables connection between a 50-amp 125/250V dockside receptacle (SS2-50P male plug) and a 30-amp 125V boatside inlet (L5-30R female connector). This heavy-duty adapter is engineered specifically for the demanding marine environment, allowing boaters to connect to shore power configurations that don't match their vessel's inlet.

Key Features:

  • 50A 125/250V male plug (SS2-50P) to 30A 125V female receptacle (L5-30R)
  • 10/3 AWG marine-grade cable for reliable power transmission
  • Yellow PVC cord jacket with maximum UV inhibitors for extended outdoor life
  • STW-rated jacket: 600VAC at 60°C for superior temperature and moisture resistance
  • Nickel-plated brass contacts resist corrosion in saltwater environments
  • Nylon plug body provides high resistance to carbon tracking and impact damage
  • ETL Listed for safety and code compliance

This adapter is ideal for boats with 30-amp 125V shore power systems that need to connect to 50-amp pedestals at marinas. The robust construction ensures reliable performance in wet, salty conditions while the bright yellow jacket provides high visibility on the dock.

Shipped quickly and packaged well

quick and easy

Good products and prices are responsible

Good price- part easily found.

Yall are the only ones with these center caps and I have been looking for 6 months. Thank you

Great prices and easy to use site

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