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.
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Premium Marine Quality Parts

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Sea-Dog 5200941 Brass Baitwell Plug, 3/4", 2/Pk - 520094-1 - 354-5200941F1

Sea-Dog Line, Lines & Rigging
$11.99

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 lock handle is adjustable to tighten plug size to fit most bait wells currently available. Durable stamped brass and nitrile rubber construction.

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Sea-Dog 5200951 Brass Baitwell Plug, 7/8", 2/Pk - 520095-1 - 354-5200951F1

Sea-Dog Line, Lines & Rigging
$12.69

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 lock handle is adjustable to tighten plug size to fit most bait wells currently available. Durable stamped brass and nitrile rubber construction.

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Sea-Dog 5202101 Brass Drain Tube - 1" X 1-7/8" - 520210-1 - 354-5202101F1

Sea-Dog Line, Lines & Rigging
$8.39

Formed brass Drain Tube is flanged 90° on one end for use as a drain for transom, motorwell, livewell, or baitwell applications. For use with brass or stainless steel drain plugs.

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Sea-Dog 5202201 Brass Drain Tube - 1" X 2-3/8" - 520220-1 - 354-5202201F1

Sea-Dog Line, Lines & Rigging
$8.79

Formed brass Drain Tube is flanged 90° on one end for use as a drain for transom, motorwell, livewell, or baitwell applications. For use with brass or stainless steel drain plugs.

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Sea-Dog 5202301 Brass Drain Tube - 1" X 2-7/8" - 520230-1 - 354-5202301F1

Sea-Dog Line, Lines & Rigging
$9.89

Formed brass Drain Tube is flanged 90° on one end for use as a drain for transom, motorwell, livewell, or baitwell applications. For use with brass or stainless steel drain plugs.

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Sea-Dog 520280 Brass Drain Tube - 1" X 8" - 520280 - 354-520280F1

Sea-Dog Line, Lines & Rigging
$16.09

Formed brass Drain Tube is flanged 90° on one end for use as a drain for transom, motorwell, livewell, or baitwell applications. For use with brass or stainless steel drain plugs.

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Sea-Dog 520430 Brass Drain Tube - 1-1/4" X 2-7/8" - 520430 - 354-520430F1

Sea-Dog Line, Lines & Rigging
$8.39

Formed brass Drain Tube is flanged 90° on one end for use as a drain for transom, motorwell, livewell, or baitwell applications. For use with brass or stainless steel drain plugs.

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Sea-Dog 520520 Scupper Valve, Black - 520520-1 - 354-5205201F1

Sea-Dog Line, Thru-Hulls & Seacocks
$45.89

Injection Molded Nylon/Neoprene.

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Sea-Dog 5205251 Scupper Valve, White - 520525-1 - 354-5205251F1

Sea-Dog Line, Thru-Hulls & Seacocks
$45.89

Injection Molded Nylon/Neoprene.

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Sea-Dog 5208401 Dripper Guard® Adhesive Stain Guard, Up To 1-7/8" , Qty: 1 Weight .02, White - 520840-1 - 354-5208401F1

Sea-Dog Line, Lines & Rigging
$31.89

Stops black streaks from staining the side of your boat. Easy do-it yourself installation, simple prep-peel backing and press along the bottom edge of your thru-hull. Patented channel design redirects water out and away from the hull preventing drips down the side and eliminates stains and water sediment build up.

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Sea-Dog 5208411 Dripper Guard® Adhesive Stain Guard, Up To 1-7/8" , Qty: 1 Weight .02, Black - 520841-1 - 354-5208411F1

Sea-Dog Line, Lines & Rigging
$31.89

Stops black streaks from staining the side of your boat. Easy do-it yourself installation, simple prep-peel backing and press along the bottom edge of your thru-hull. Patented channel design redirects water out and away from the hull preventing drips down the side and eliminates stains and water sediment build up.

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Sea-Dog 5208421 Dripper Guard® Adhesive Stain Guard, Up To 2-5/8" , Qty: 1 Weight .02, White - 520842-1 - 354-5208421F1

Sea-Dog Line, Lines & Rigging
$31.89

Stops black streaks from staining the side of your boat. Easy do-it yourself installation, simple prep-peel backing and press along the bottom edge of your thru-hull. Patented channel design redirects water out and away from the hull preventing drips down the side and eliminates stains and water sediment build up.

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Sea-Dog 5208431 Dripper Guard® Adhesive Stain Guard, Up To 2-5/8" , Qty: 1 Weight .02, Black - 520843-1 - 354-5208431F1

Sea-Dog Line, Lines & Rigging
$31.89

Stops black streaks from staining the side of your boat. Easy do-it yourself installation, simple prep-peel backing and press along the bottom edge of your thru-hull. Patented channel design redirects water out and away from the hull preventing drips down the side and eliminates stains and water sediment build up.

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Sea-Dog 5208461 Dripper Guard® Adhesive Stain Guard, Up To 1-7/8", Qty: 3 Weight .02, White - 520846-1 - 354-5208461F1

Sea-Dog Line, Lines & Rigging
$68.19

Stops black streaks from staining the side of your boat. Easy do-it yourself installation, simple prep-peel backing and press along the bottom edge of your thru-hull. Patented channel design redirects water out and away from the hull preventing drips down the side and eliminates stains and water sediment build up.

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Sea-Dog 5208471 Dripper Guard® Adhesive Stain Guard, Up To 1-7/8" , Qty: 3 Weight .06, Black - 520847-1 - 354-5208471F1

Sea-Dog Line, Lines & Rigging
$68.19

Stops black streaks from staining the side of your boat. Easy do-it yourself installation, simple prep-peel backing and press along the bottom edge of your thru-hull. Patented channel design redirects water out and away from the hull preventing drips down the side and eliminates stains and water sediment build up.

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Sea-Dog 5208481 Dripper Guard® Adhesive Stain Guard, Up To 2-5/8", Qty: 3 Weight .06, White - 520848-1 - 354-5208481F1

Sea-Dog Line, Lines & Rigging
$75.39

Stops black streaks from staining the side of your boat. Easy do-it yourself installation, simple prep-peel backing and press along the bottom edge of your thru-hull. Patented channel design redirects water out and away from the hull preventing drips down the side and eliminates stains and water sediment build up.

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Sea-Dog 5208491 Dripper Guard® Adhesive Stain Guard, Up To 2-5/8", Qty: 3 Weight .06, Black - 520849-1 - 354-5208491F1

Sea-Dog Line, Lines & Rigging
$75.39

Stops black streaks from staining the side of your boat. Easy do-it yourself installation, simple prep-peel backing and press along the bottom edge of your thru-hull. Patented channel design redirects water out and away from the hull preventing drips down the side and eliminates stains and water sediment build up.

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Sea-Dog 5215201 Rectangular Motor Flusher - 521520-1 - 354-5215201F1

Sea-Dog Line, Lines & Rigging
$14.39

Simple garden hose connection, no tools required. Features rectangular cups for use with larger outboards.

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Sea-Dog 521600 Hole Liner, 4-1/16" Od, Black - 521600-1 - 354-521600F1

Sea-Dog Line, Lines & Rigging
$9.59

This Hole Liner grommet is for use to protect wire or cables passing through bulkheads, etc. Protective liner with small lip for access holes. Injection molded polyethylene constuction. Installs with two FH fasteners (not included). Available in black or white.Dimensions: 4-1/16" OD x 2-9/16" ID, 3" Cutout

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Sea-Dog 521601 Hole Liner, 4-1/16" Od, White - 521601-1 - 354-5216011F1

Sea-Dog Line, Lines & Rigging
$9.56

This Hole Liner grommet is for use to protect wire or cables passing through bulkheads, etc. Protective liner with small lip for access holes. Injection molded polyethylene constuction. Installs with two FH fasteners (not included). Available in black or white.Dimensions: 4-1/16" OD x 2-9/16" ID, 3" Cutout

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Sea-Dog 5221051 Speedometer Pitot Tube Kit - 522105-1 - 354-5221051F1

Sea-Dog Line, Gauges & Sensors
$21.27

Universal design works with most Speedo's. Kit includes pitot, pitot tube shield, clamps, and mounting screws.

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Sea-Dog 560105 Spreader Boot, 3/16" Wire Size, 1 Pr. - 560105-1 - 354-5601051F1

Sea-Dog Line, Wiring & Connectors
$27.19

UV protected rubber.

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Sea-Dog 5601061 Spreader Boot, 1/4" Wire Size, 1 Pr. - 560106-1 - 354-5601061F1

Sea-Dog Line, Wiring & Connectors
$41.92

UV protected rubber.

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Sea-Dog 5610121 Mooring Line Chafe Kit, 1/2" Line Size - 561012-1 - 354-5610121F1

Sea-Dog Line, Docking & Fendering
$24.39

Mooring line chafe kits include: Waxed twine, heavy duty needle and (2) 10" pieces of leather pre-stamped for sewing. Used to reduce chafe and extend the life of mooring lines. Natural leather - color may vary.

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Sea-Dog 561512 Mooring Snubber, A:17-1/8" B:3/8" - 561512 - 354-561512F1

Sea-Dog Line, Docking & Fendering
$38.09

Absorb shock loads and relieve tension on lines and deck fittings. The length of compensating movement can be adjusted by the number of line turns around the snubber, mitigating the effects of wind and waves. Easy to use, requiring no extra hardware. Ideal for use in tidal areas, on exposed moorings, or in towing situations. High quality rubber to resist sunlight, saltwater, and ozone.

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.