U.S. Customers: Orders shipped from Canada may be subject to U.S. import duties, taxes, and/or tariffs as assessed by U.S. Customs and your carrier. These charges are not included in our product prices or shipping rates. You are responsible for any duties/tariffs/fees due on delivery or prior to delivery.
Packed and shipped within Canada!

Premium Marine Quality Parts

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Sea-Dog 425020 Wave Led Battery Test Rocker Switch Panel - 425020-1 - 354-4250201F1

Sea-Dog Line, Batteries & Charging
$82.59

The Wave LED Battery Test Rocker Switch Panel includes an illuminating rocker SPDT switch and bright LED display to monitor voltage of two batteries.

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Sea-Dog 4261621 Polarized Molded Electrical Connector, 2-Pin - 426162-1 - 354-4261621F1

Sea-Dog Line, Wiring & Connectors
$17.19

Constructed of a molded Bakelite and neoprene body with machined brass polarized pins. Pins are sized differently, ensuring only one way to connect the plug and avoiding reverse polarity issues.

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Sea-Dog 4261631 Polarized Molded Electrical Connector, 3-Pin - 426163-1 - 354-4261631F1

Sea-Dog Line, Wiring & Connectors
$21.59

Constructed of a molded Bakelite and neoprene body with machined brass polarized pins. Pins are sized differently, ensuring only one way to connect the plug and avoiding reverse polarity issues.

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Sea-Dog 4261641 Polarized Molded Electrical Connector, 4-Pin - 426164-1 - 354-4261641F1

Sea-Dog Line, Wiring & Connectors
$24.99

Constructed of a molded Bakelite and neoprene body with machined brass polarized pins. Pins are sized differently, ensuring only one way to connect the plug and avoiding reverse polarity issues.

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Sea-Dog 426503 Double Usb Power Socket W/O Light - 426503 - 354-426503F1

Sea-Dog Line, Lighting
$32.59

This Double USB Power Socket has no LED indicator light so it will not drain the battery when not in use. Capable of charging two devices simultaneously. The total output 4.8A load is split 2.4A per side as needed. Enough power to charge phones, pads, and tablets quickly and efficiently. Protective dust cap extends the life of the charger. Constructed of injection molded nylon with terminal spade contacts. Installation is as easy as drilling a 1-1/8" hole, inserting the socket body, tightening the locking nut, and connecting the wires.

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Sea-Dog 4266241 Terminal Block, 4 Gang - 426624-1 - 354-4266241F1

Sea-Dog Line, Wiring & Connectors
$11.39

Terminal blocks are modular, insulated screw-type electrical connectors that are used to secure and/or terminate two or more wires together. Useful for connecting wiring to a ground or for connecting electrical switches and outlets to the mains. Molded Bakelite and stamped brass construction. Designed for use with tinned copper marine wire which shares the same expansion rate preventing loosening and reducing electrolytic corrosion caused by pairing two disparate metals. Installs with four RH fasteners (not included).

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Sea-Dog 4266261 Terminal Block, 6 Gang - 426626-1 - 354-4266261F1

Sea-Dog Line, Wiring & Connectors
$14.39

Terminal blocks are modular, insulated screw-type electrical connectors that are used to secure and/or terminate two or more wires together. Useful for connecting wiring to a ground or for connecting electrical switches and outlets to the mains. Molded Bakelite and stamped brass construction. Designed for use with tinned copper marine wire which shares the same expansion rate preventing loosening and reducing electrolytic corrosion caused by pairing two disparate metals. Installs with four RH fasteners (not included).

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Sea-Dog 4267221 Buss Bar 10 Screw Terminal Block, 6" - 426722-1 - 354-4267221F1

Sea-Dog Line, Wiring & Connectors
$34.97

Buss Bar Screw-Temrinal Blocks are each equipped with a two 1/4" studs for main wire connection. Maximum: 48VDC. Installs with two #10 RH fasteners (not included). 426722 has certification by ISO, ABYC, SAE, USCG, and CE low voltage directive standards.

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Sea-Dog 4267241 Buss Bar 20 Screw Terminal Block, 9-1/8" - 426724-1 - 354-4267241F1

Sea-Dog Line, Wiring & Connectors
$46.94

Buss Bar Screw-Temrinal Blocks are each equipped with a two 1/4" studs for main wire connection. Maximum: 48VDC. Installs with two #10 RH fasteners (not included).

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Sea-Dog 426733 Buss Bar 12 Screw Terminal Block, 7-15/16" - 426733-1 - 354-4267331F1

Sea-Dog Line, Wiring & Connectors
$49.91

Buss Bar Screw-Temrinal Blocks are each equipped with a two 5/16" studs for main wire connection. Maximum: 48VDC. Installs with two #10 RH fasteners (not included).

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Sea-Dog 4299401 Multi-Function Wire Stripper & Crimper - 429940-1 - 354-4299401F1

Sea-Dog Line, Wiring & Connectors
$43.81

This professional grade Multi-Function Wire Stripper & Crimper tool is three tools in one. It strips, crimps, and cuts 24-10 gauge wire with ease. Constructed of powder coated steel.

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Sea-Dog 4440501 Agc Glass Tube Fuse, 50 Amp, 5/Card - 444050-1 - 354-4440501F1

Sea-Dog Line, Power Distribution
$31.49

Nickel plated brass contacts.

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Sea-Dog 4441011 Agc Glass Tube Fuse, 1 Amp, 5/Card - 444101-1 - 354-4441011F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4441021 Agc Glass Tube Fuse, 2 Amp, 5/Card - 444102-1 - 354-4441021F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4441031 Agc Glass Tube Fuse, 3 Amp, 5/Card - 444103-1 - 354-4441031F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4441041 Agc Glass Tube Fuse, 4 Amp, 5/Card - 444104-1 - 354-4441041F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4441051 Agc Glass Tube Fuse, 5 Amp, 5/Card - 444105-1 - 354-4441051F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4441101 Agc Glass Tube Fuse, 10 Amp, 5/Card - 444110-1 - 354-4441101F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4441151 Agc Glass Tube Fuse, 15 Amp, 5/Card - 444115-1 - 354-4441151F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4441201 Agc Glass Tube Fuse, 20 Amp, 5/Card - 444120-1 - 354-4441201F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4441251 Agc Glass Tube Fuse, 25 Amp, 5/Card - 444125-1 - 354-4441251F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4441301 Agc Glass Tube Fuse, 30 Amp, 5/Card - 444130-1 - 354-4441301F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4441351 Agc Glass Tube Fuse, 35 Amp, 5/Card - 444135-1 - 354-4441351F1

Sea-Dog Line, Power Distribution
$6.69

Nickel plated brass contacts.

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Sea-Dog 4450071 Atm Mini Fuse, 7.5A 5/Pk - 445007-1 - 354-4450071F1

Sea-Dog Line, Power Distribution
$10.29

ATM mini style injection molded nylon fuses feature tin plated connector blades for improved corrosion resistance. Fast acting fuses provide better protection for electronic devices. For use with ATM mini style fuse holder

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Sea-Dog 4451011 Ato/Atc Fuse, 1 Amp (Fast), 5/Pk - 445101-1 - 354-4451011F1

Sea-Dog Line, Power Distribution
$5.41

ATO/ATC style injection molded nylon fuses feature tin plated connector blades for improved corrosion resistance. Fast acting fuses provide better protection for electronic devices.

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Northern Marine Canada
Our products are shipped from Canada!
Parts Warehouse:
Toronto, Ontario, Canada
Head Office:
Kingston, Ontario

About Us

Northern Marine is a Canadian supplier of premium marine and RV parts and accessories from top industry brands. We focus on quality, accurate listings, and dependable fulfillment so you can maintain, repair, and outfit your boat or RV with confidence.

Our goal is simple: get you the right parts, shipped fast, with straightforward service you can count on.