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Over 50 years of Trusted Marine Service

Shore Power

Shore Power & Dockside Electrical

Shore Power Cords, Adapters, Inlets, Connectors & AC Protection

Shop shore power parts for safer dock connections, onboard charging, AC panels, and reliable power at the slip. Find 30 amp and 50 amp cordsets, EEL cordsets, straight adapters, pigtail adapters, Y adapters, reverse-Y adapters, inlets, receptacles, plugs, connectors, galvanic isolators, and installation support.

Match Before Ordering

Confirm amperage, voltage, locking pattern, plug style, cord length, boat-side inlet, dock pedestal connection, and whether you need a cord, adapter, inlet, or protection device.

Ask Parts Desk
Shore power cord and dockside electrical connection

Find Shore Power Faster

Search by Amperage, Voltage, Cord Type, Adapter Type, Inlet, or Brand

Use exact part numbers when possible. For matching by setup, search by terms like 30A cordset, 50A EEL cord, pigtail adapter, reverse Y adapter, shore power inlet, or galvanic isolator.

Amp & Voltage Matching

Start With 30A vs 50A and 125V vs 125/250V

Most shore power mistakes start with a mismatch at the dock pedestal, cord, adapter, or boat inlet. Confirm the service rating before buying. A 30A 125V setup is not the same as a 50A 125V or 50A 125/250V setup.

Cord Length & Connection Style

Match the Boat Inlet, Dock Pedestal, and Cord Run

Choose a cord length that reaches safely without strain, sharp bends, submerged sections, or overheated coils. Check the locking pattern, plug blades, threaded collar, sealing collar, and cord-end condition.

CORD

Cordsets

Use a full shore power cordset when the boat-to-dock connection needs the correct rating, length, plug style, and weather-resistant construction.

ADPT

Adapters

Use an adapter only when the dock-side and boat-side ratings and connector styles are understood. Never use an adapter to overload a cord or circuit.

INLT

Inlets

Replace worn, cracked, loose, overheated, or corroded inlets with the same rating and compatible connection style.

Protection & Safety

Dockside AC Power Should Be Matched, Protected, and Inspected

Shore power supports chargers, outlets, appliances, heaters, air conditioning, and AC panels while the boat is connected at the dock. Correct protection can include main breakers, ELCI or GFCI protection, galvanic isolation, reverse-polarity indicators, and clean wiring practices.

Inspect for heatReplace parts with burn marks, melted collars, loose blades, cracked housings, discoloration, or unreliable locking action.
Keep connections dryUse compatible collars, covers, caps, and strain relief so dockside power parts stay secure and protected.
Use qualified helpAC electrical work should follow current safety standards and be installed or inspected by qualified help when needed.

FAQ

Shore Power Buying Help

How do I choose the correct shore power cord?

Match the cord to your boat inlet and dock pedestal by amperage, voltage, plug configuration, locking style, cord length, and connection condition. Common setups include 30A 125V and 50A 125/250V service.

When should I use a pigtail, Y, or reverse-Y adapter?

A pigtail adapter changes one connection style to another. A Y adapter and reverse-Y adapter are used for specific split or combined shore power setups. These must be matched carefully to the boat system and dock service.

When should a shore power cord or inlet be replaced?

Replace shore power parts if they show heat damage, corrosion, cracked insulation, loose ends, burn marks, bent blades, damaged collars, or unreliable locking connections.

What does a galvanic isolator do?

A galvanic isolator helps reduce low-voltage galvanic current that can contribute to underwater metal corrosion while the boat is connected to shore power.

Ready to Shop Shore Power?

Start with the full shore power collection, narrow by amperage or adapter type, or contact the Parts Desk with photos of your boat inlet, dock pedestal, cord ends, and current part numbers.

Filters

Marinco 152AY Standard "Y" Adapter Dock Side Male 50A 125V Locking to Boat Side Female 2-30A/125V Locking With Sealing Collar System

Original price $590.00 - Original price $590.00
Original price
$590.00
$590.00 - $590.00
Current price $590.00
Item locally warehoused

Marinco 152AY “Y” Adapter lets you connect one 50A 125V dockside outlet to two boat inlets using locking male/docking-side and locking female/boat-...

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Original price $590.00 - Original price $590.00
Original price
$590.00
$590.00 - $590.00
Current price $590.00

Marinco 7879CR Stainless Steel Sealed Cover With Lid Fits 4700CR, 5262CRR and 5739CR Receptacles

Original price $109.63 - Original price $109.63
Original price
$109.63
$109.63 - $109.63
Current price $109.63
Item locally warehoused

Protect your Shore Power duplex receptacle with this Marinco 7879CR stainless steel sealed cover with lift lid. Designed to fit specific Marinco re...

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Original price $109.63 - Original price $109.63
Original price
$109.63
$109.63 - $109.63
Current price $109.63

Marinco 30A/125V Locking Receptacle

Original price $87.59 - Original price $87.59
Original price
$87.59
$87.59 - $87.59
Current price $87.59
Item locally warehoused

Marinco 30A/125V Locking Receptacle (69-305CRR) is a corrosion-resistant reinforced nylon 3-wire shore power receptacle designed for secure, twist-...

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Original price $87.59 - Original price $87.59
Original price
$87.59
$87.59 - $87.59
Current price $87.59

Marinco 6365CRN 50 Amp 125/250V Male Plug

Original price $257.49 - Original price $257.49
Original price
$257.49
$257.49 - $257.49
Current price $257.49
Item locally warehoused

Marinco 6365CRN 50 Amp 125/250V Male Plug is a 3-pole, 4-wire shore power male connector designed for durable marine electrical hookups. Key Featur...

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Original price $257.49 - Original price $257.49
Original price
$257.49
$257.49 - $257.49
Current price $257.49

Marinco Shore Power Cord Clips For 30 Amp Cords (6 Per Pack)

Original price $37.99 - Original price $37.99
Original price
$37.99
$37.99 - $37.99
Current price $37.99
Item locally warehoused

Keep your 30 Amp shore power cord neatly routed and off the ground with Marinco Shore Power Cord Clips. This 6-clip pack makes it quick to organize...

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Original price $37.99 - Original price $37.99
Original price
$37.99
$37.99 - $37.99
Current price $37.99

Marinco 4731CR 15A/125V Locking Type Female Connector

Original price $60.08 - Original price $60.08
Original price
$60.08
$60.08 - $60.08
Current price $60.08
Item locally warehoused

The Marinco 4731CR locking type female shore power connector is a 15A/125V straight blade connector built for secure, reliable docking power connec...

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Original price $60.08 - Original price $60.08
Original price
$60.08
$60.08 - $60.08
Current price $60.08

Marinco 4721CR 15A/125V Locking Type Male Plug

Original price $42.97 - Original price $42.97
Original price
$42.97
$42.97 - $42.97
Current price $42.97
Item locally warehoused

Replace or upgrade your shore power plug with the Marinco 4721CR 15A/125V locking type male plug. Built for marine use, it features corrosion-resis...

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Original price $42.97 - Original price $42.97
Original price
$42.97
$42.97 - $42.97
Current price $42.97

Hubbell YQ230 Yellow Intelligent "Y" (1) 50A 125V/250V Female to (2) 30A 125V Male Adapters

Original price $1,273.48 - Original price $1,273.48
Original price
$1,273.48
$1,273.48 - $1,273.48
Current price $1,273.48
Item locally warehoused

Safely powers 50 amp 125/250 volt boat from (2) 30 amp 125 volt receptacles at dockside. 4-pole contactor breaks both hots and both neutrals to pre...

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Original price $1,273.48 - Original price $1,273.48
Original price
$1,273.48
$1,273.48 - $1,273.48
Current price $1,273.48

Waterproof Shore Power Inlet 0.56" Cable Entry (BSS-1003)

Original price $56.83 - Original price $56.83
Original price
$56.83
$56.83 - $56.83
Current price $56.83
79 in stock

Blue Sea Systems 1003 is a marine CableClam deck-seal fitting used to pass electrical cables through decks, bulkheads, or panels while hel...

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Original price $56.83 - Original price $56.83
Original price
$56.83
$56.83 - $56.83
Current price $56.83