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Premium Marine Quality Parts

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Baitwell Plugs feature cam action for easy installation and leak proof seal for livewells and baitwells. Simply turn the handle clockwise to tighten the plug then snap down the handle to lock. Snap lo... More Details

Baitwell Plugs feature cam action for easy installation and leak proof seal for livewells and baitwells. Simply turn the handle clockwise to tighten the plug then snap down the handle to lock. Snap lo... More Details

Baitwell Plugs feature cam action for easy installation and leak proof seal for livewells and baitwells. Simply turn the handle clockwise to tighten the plug then snap down the handle to lock. Snap lo... More Details

Baitwell Plugs feature cam action for easy installation and leak proof seal for livewells and baitwells. Simply turn the handle clockwise to tighten the plug then snap down the handle to lock. Snap lo... More Details

This Oblong Captive Garboard Drain & Plug sits lower in the stern for more water removal. Captive plug prevents plug from being lost. Constructed of investment cast 316 stainless steel. Installs with ... More Details

This Captive Garboard Drain & Plug is a direct replacement for the bronze, traditional style Sea-Dog® Garboards (520040 and 520042). Captive plug prevents plug from being lost. Constructed of investme... More Details

The Emergency Garboard Drain Plug features an attached key ring, ensuring you always have a back-up if you lose your garboard plug. Fits most 1/2" NPT threaded drains. For temporary use only. Construc... More Details

The Emergency Garboard Drain Plug features an attached key ring, ensuring you always have a back-up if you lose your garboard plug. Fits most 1/2" NPT threaded drains. For temporary use only. Construc... More Details

Molded nylon pipe plug ensures a watertight seal. Drain tube 1-1/8".... More Details

Molded nylon pipe plug ensures a watertight seal. Drain tube 1-1/8".... More Details

1/2" NPT tapered thread plug provides a watertight seal. Plug has a square T-top for hand tightening or removal.... More Details

Has a flange diameter of 2". Pipe size is 1/2". Fastener is #8 FH. Bronze.... More Details

Has a flange diameter of 2". Pipe size is 1/2". Fastener is #8 FH. Bronze.... More Details

Molded nylon. Designed to fit securely in a 1" hole without the use of fasteners. The ridges on the body of the drain plug are designed to keep the plug in place. Sealant should be applied prior to in... More Details

Unique design offers plug and drain in one product, simply install stopper to plug drain and press top to instantly activate drain without ever removing plug.... More Details

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Sea-Dog 5173361 Sink Drain Funnel - 517336-1 - 354-5173361F1

Sea-Dog Line, Lines & Rigging
$4.46
Injection molded polyethylene. 3/4" Hose size. Sink Drain Funnel fits Sea-Dog® 2" Drains #517525 and #517526.... More Details

Aluminum/Plastic. Telescopes from 1-5/8" to 4-9/16" High, 5" long spout. 9/16" Barb.... More Details

Replacement Cap... More Details

Replacement Cap... More Details

Nylon/aluminum. Standard Pump fits quart oil bottles. Flexible hose gets to hard to reach locations. Threaded (3/8"-16) fitting fits Mercruiser, OMC, Evinrude, Johnson, Honda (70hp & up), Volvo, Force... More Details

Convenient brass hand pump drains oil through the dipstick on inboard and I/O engines. Includes 2 drain tubes. Inlet tube: 5/16" x 24-1/2", Outlet Tube: 1/2" x 10-3/4" Outlet.... More Details

The 10° Flagpole Socket accepts 1" or 1-1/4" flagpoles. Set screw holds flagpole in place. Investment cast 316 stainless steel. Installs with three #10 FH fasteners (not included).... More Details

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Sea-Dog 491912 Flagpole Socket, 1" - 491912-1 - 354-4919121F1

Sea-Dog Line, Lines & Rigging
$41.79
The 10° Flagpole Socket accepts 1" or 1-1/4" flagpoles. Set screw holds flagpole in place. Investment cast 316 stainless steel. Installs with three #10 FH fasteners (not included).... More Details

Constructed of injection molded Santoprene rubber, for long term durability and dimensional stability, these convenient pole storage clips are a great way to organize your gear. Use them to secure eve... More Details

Constructed of injection molded Santoprene rubber, for long term durability and dimensional stability, these convenient pole storage clips are a great way to organize your gear. Use them to secure eve... More Details

Constructed of injection molded Santoprene rubber, for long term durability and dimensional stability, these convenient pole storage clips are a great way to organize your gear. Use them to secure eve... More Details

Injection molded nylon/aluminum. The marine grade aluminum tubing, Acme threaded end attachment and comfort grip handle make for a high quality and durable accessory. Its buoyant design keeps the boat... More Details

Injection molded nylon/aluminum. The marine grade aluminum tubing, Acme threaded end attachment and comfort grip handle make for a high quality and durable accessory. Its buoyant design keeps the boat... More Details

Injection Molded Nylon/Aluminum. Grab hole in paddle for hand and handle has double hook.... More Details

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Sea-Dog 450150 Ceramic Heater, 12V - 450150-1 - 354-4501501F1

Sea-Dog Line, Lines & Rigging
$65.99
ABS Housing. Works great for keeping small windows clear of condensation. Not intended for cabin heating in large areas. Comes with 5-1/2' cord and plugs into 12 volt power socket. Base pivots and rot... More Details

This Combination Buss Bar features separate buss strips that allow both negative and positive connections on the same block. Constructed of tin plated brass and ABS. Designed for use with tinned coppe... More Details

Charges two devices simultaneously. The total output 6A load is split 3A per side as needed. USB 3.0 features Quick Charging (QC) for supported devices, giving enough power to charge phones, pads, and... More Details

Dual USB-C Power Socket charges two devices simultaneously. The total output 8A load is split 4A per side as needed. USB-C features Power Delivery (PD) for faster and more flexible charging. Enough po... More Details

This USB & USB-C Rocker Switch Style Power Socket charges two devices simultaneously. Fits into any 13/16" x 1-7/16" rocker switch hole. The total output 4.8A load is split 2.4A per side as needed. US... More Details

Extends your USB connection for use charging and accessing printers, keyboards, mice, cameras, and other USB computer peripherals. Perfect for applications where a USB device with a fixed output needs... More Details

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Sea-Dog 4265041 Dual Usb Power Socket - 426504-1 - 354-4265041F1

Sea-Dog Line, Lines & Rigging
$53.32
This Dual USB Power Socket (Red) is 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 quickl... More Details

Deluxe Power Socket with Plug adds power virtually anywhere. Flush mount socket is constructed of injection molded nylon & ABS. Installation is as easy as drilling a 1-1/8" hole, inserting the socket ... More Details

Flush mount socket is constructed of injection molded nylon & ABS. Installation is as easy as drilling a 1-1/8" hole, inserting the socket body, tightening the locking nut, and connecting the wires. M... More Details

Marine emergency cut-off Kill Switch attaches to your life vest while operating a boat or personal watercraft. Designed to instantly cut battery power when detached. The magneto (red cap) version func... More Details

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Sea-Dog 4204301 Foot Switch - 420430-1 - 354-4204301F1

Sea-Dog Line, Lines & Rigging
$84.29
Stamped 304 Stainless Steel/Rubber Cover. Switch is normally off and momentary on when depressed by foot.... More Details

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Sea-Dog 4204251 Waterproof Cap, Red - 420425-1 - 354-4204251F1

Sea-Dog Line, Lines & Rigging
$7.29
Waterproof red cap... More Details

Waterproof black cap... More Details

Injection Molded Nylon. For standard and Contura rocker switches.... More Details

Injection Molded Nylon. For standard and Contura rocker switches.... More Details

Injection Molded Nylon. For standard and Contura rocker switches.... More Details

These Illuminating Rocker Switches are constructed of durable injection molded nylon and stamped brass. Illuminates in the ON position. Easy to install by simply snapping into a standard 7/8" x 1-7/16... More Details

New style slip-on hinge style wiper blades and arms. Wiper arms fit all standard and waterproof standard motors with 3/8" shaft diameter. Note, blades do not fit 413 series arms.... More Details

New style slip-on hinge style wiper blades and arms. Wiper arms fit all standard and waterproof standard motors with 3/8" shaft diameter. Note, blades do not fit 413 series arms.... More Details

All hook style wiper blades and arms are replacements for Sea-Dog® wipers sold prior to 1993. In addition, the hook style wiper blades and arms will fit most older wipers sold by AFI, Wilcox, NA Taylo... More Details

All hook style wiper blades and arms are replacements for Sea-Dog® wipers sold prior to 1993. In addition, the hook style wiper blades and arms will fit most older wipers sold by AFI, Wilcox, NA Taylo... More Details

New style slip-on hinge style wiper blades and arms. Wiper arms fit all standard and waterproof standard motors with 3/8" shaft diameter. Note, blades do not fit 413 series arms.... More Details

New style slip-on hinge style wiper blades and arms. Wiper arms fit all standard and waterproof standard motors with 3/8" shaft diameter. Note, blades do not fit 413 series arms.... More Details

Stamped 304 stainless steel. light arc is 20 pts., 225°. Carded.... More Details

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Sea-Dog 400111 Replacement Lens - 400111-1 - 354-4001111F1

Sea-Dog Line, Lines & Rigging
$5.59
Replacement Lens... More Details

The Emergency Deck Fill Plug is a must for any vessel. Fits most 1-1/2" hose deck fills in the event you lose your cap. For temporary use only until you can replace your OEM cap. Constructed of fuel r... More Details

The Emergency Deck Fill Plug is a must for any vessel. Fits most 1-1/2" hose deck fills in the event you lose your cap. For temporary use only until you can replace your OEM cap. Constructed of fuel r... More Details

Sea-Dog's® fiberglass filled injection molded nylon deck fills contain no metal and do not require grounding to the boats electrical system. Caps are color-coded for easy deck fill identification elim... More Details

Sea-Dog's® fiberglass filled injection molded nylon deck fills contain no metal and do not require grounding to the boats electrical system. Caps are color-coded for easy deck fill identification elim... More Details

These Door Hinges are constructed of UV resistant, injection molded fiberglass nylon with a corrosion resistant stainless steel pin. Installs with six #8 FH fasteners (not included).... More Details

Investment Cast 316 Stainless Steel.... More Details

Machined Brass Chrome Plated. 5/8"-18 NF x 1-13/16" thread.... More Details

Pipe Deck Fills are constructed of corrosion resistant investment cast 316 stainless steel. Designed to be used in conjunction with 1-1/2" © 11-1/2 NPSM straight threaded pipe. Includes attachment cha... More Details

Pipe Deck Fills are constructed of corrosion resistant investment cast 316 stainless steel. Designed to be used in conjunction with 1-1/2" © 11-1/2 NPSM straight threaded pipe. Includes attachment cha... More Details

Pipe Deck Fills are constructed of corrosion resistant investment cast 316 stainless steel. Designed to be used in conjunction with 1-1/2" - 11-1/2 NPSM straight threaded pipe. Includes attachment cha... More Details

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Sea-Dog 337501 Louvered Vent, White - 337501 - 354-337501F1

Sea-Dog Line, Lines & Rigging
$7.18
Louvered Vents are designed to promote air circulation and prevent mold, mildew, and unpleasant odors. Ideal for cabin doors, lockers, dock boxes, etc. Easy to install with four #8 FH fasteners (not i... More Details

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Sea-Dog 337500 Louvered Vent, Black - 337500 - 354-337500F1

Sea-Dog Line, Lines & Rigging
$6.96
Louvered Vents are designed to promote air circulation and prevent mold, mildew, and unpleasant odors. Ideal for cabin doors, lockers, dock boxes, etc. Easy to install with four #8 FH fasteners (not i... More Details

Injection molded ABS.... More Details

Injection molded ABS.... More Details

Injection molded ABS.... More Details

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Sea-Dog 337320 Thru Vent, Black - 337320 - 354-337320F1

Sea-Dog Line, Lines & Rigging
$3.30
Designed for cabin or bilge ventilation. Constructed of injection molded polypropylene they are UV resistant. For use with 3" exhaust hose. Installs with four #8 FH fasteners (not included). Vent area... More Details

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Sea-Dog 337310 Thru Vent, White - 337310 - 354-337310F1

Sea-Dog Line, Lines & Rigging
$3.39
Designed for cabin or bilge ventilation. Constructed of injection molded polypropylene they are UV resistant. For use with 3" exhaust hose. Installs with four #8 FH fasteners (not included). Vent area... More Details

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Sea-Dog 3371981 Deck Plate Lanyard - 337198-1 - 354-3371981F1

Sea-Dog Line, Lines & Rigging
$9.39
12" Lanyard is designed to retain deck plate lids. Fits all Sea-Dog® Deck Plates. Constructed of corrosion resistant 304 stainless steel. Attaches to lid with #6 RH fastener (included) and to the inte... More Details

Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details

Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details

Molded with a collar on the bottom to hold deck plate bags or other round containers. Injection molded ABS. Molded to the highest standard using top quality UV stabilizers and anti-oxidants. Use silic... More Details

The Sea-Dog® Screw-Out Deck Plate is constructed with UV stabilized injection molded ABS and feature a clear polycarbonate lid, allowing visual inspection of the watertight compartment without removin... More Details

Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details

Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details

Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details

Molded with a collar on the bottom to hold deck plate bags or other round containers. Injection molded ABS. Molded to the highest standard using top quality UV stabilizers and anti-oxidants. Use silic... More Details

Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details

The Sea-Dog® Screw-Out Deck Plate is constructed with UV stabilized injection molded ABS and feature a clear polycarbonate lid, allowing visual inspection of the watertight compartment without removin... More Details

Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details

Molded with a collar on the bottom to hold deck plate bags or other round containers. Injection molded ABS. Molded to the highest standard using top quality UV stabilizers and anti-oxidants. Use silic... More Details

Sea-Dog® Screw-Out Deck Plates are molded to the highest standards using top quality UV stabilizers and antioxidants. When installing, use silicone sealant on hull or deck surface. Keep threads clean ... More Details

Features an integrated, pop-up lever to make opening and closing a snap. The concealed fasteners give a smooth look with a very low profile (.1875"), this deck plate is great for tight places and high... More Details

Features an integrated, pop-up lever to make opening and closing a snap. The concealed fasteners give a smooth look with a very low profile (.1875"), this deck plate is great for tight places and high... More Details

Features an integrated, pop-up lever to make opening and closing a snap. The concealed fasteners give a smooth look with a very low profile (.1875"), this deck plate is great for tight places and high... More Details

Features an integrated, pop-up lever to make opening and closing a snap. The concealed fasteners give a smooth look with a very low profile (.1875"), this deck plate is great for tight places and high... More Details

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Sea-Dog 3316011 Drain Cover, 2-1/2" - 331601-1 - 354-3316011F1

Sea-Dog Line, Lines & Rigging
$6.99
Stamped 304 StainlessVent Area .85 Sq. In.Fasteners: #6 RH... More Details

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Sea-Dog 331600 Drain Cover, 3-1/4" - 331600-1 - 354-3316001F1

Sea-Dog Line, Lines & Rigging
$9.79
Stamped 304 StainlessVent Area 2.11 Sq. In.Fasteners: #6 RH... More Details

Constructed of corrosion resistant 304 stainless steel. Promote air flow helping to preventing mold and mildew. Features a side knob that allows for easy adjustment of the opening. Fasteners sold sepa... More Details

Constructed of corrosion resistant 304 stainless steel these butterfly vents promote air flow to prevent mold, mildew and associated odors. Features a center knob that allows for easy adjustment of th... More Details

Constructed of corrosion resistant stamped 304 stainless steel these round air ventilation louvers allow air in while keeping water out. Installs with four #6 FH fasteners (not included).... More Details

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Sea-Dog 331424 Round Louvered Vent, 4" - 331424 - 354-331424F1

Sea-Dog Line, Lines & Rigging
$8.83
Constructed of corrosion resistant stamped 304 stainless steel these round air ventilation louvers allow air in while keeping water out. Installs with four #6 FH fasteners (not included).... More Details

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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.