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 4100541 Wiper Arm 9"-14-3/4"Hinge Type - 410054-1 - 354-4100541F1

Sea-Dog Line, Lines & Rigging
$36.49

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.

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Sea-Dog 4100511 Wiper Arm 8"-12" Hinge Type - 410051-1 - 354-4100511F1

Sea-Dog Line, Lines & Rigging
$38.49

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.

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Sea-Dog 4001511 Lens For 400150 (Red/Green) - 400151-1 - 354-4001511F1

Sea-Dog Line, Lines & Rigging
$9.99

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

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

Sea-Dog Line, Lines & Rigging
$5.59

Replacement Lens

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Sea-Dog 3573901 Emergency Deck Fill Plug, Pop Display 10/Pk - 357390-5 - 354-3573905F1

Sea-Dog Line, Lines & Rigging
$144.09

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 resistant Nitrile-Buna rubber.

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Sea-Dog 3573901 Emergency Deck Fill Plug - 357390-1 - 354-3573901F1

Sea-Dog Line, Lines & Rigging
$20.29

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 resistant Nitrile-Buna rubber.

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Sea-Dog 3570131 Water Deck Fill Fiberglass Nylon W/Blue Slotted Cap - 357013-1 - 354-3570131F1

Sea-Dog Line, Lines & Rigging
$25.29

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 eliminating dangerous and potentially costly problems caused by miss-identification. 1-1/4" - 11-1/2 NPSM straight cap threads. Gas, diesel and water caps include attachment chains. Installs with three #10 FH fasteners (not included).

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Sea-Dog 3570101 Gas Deck Fill Fiberglass Nylon W/Red Slotted Cap - 357010-1 - 354-3570101F1

Sea-Dog Line, Lines & Rigging
$25.29

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 eliminating dangerous and potentially costly problems caused by miss-identification. 1-1/4" - 11-1/2 NPSM straight cap threads. Gas, diesel and water caps include attachment chains. Installs with three #10 FH fasteners (not included).

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Sea-Dog 354-2025311 Door Hinge, White Nylon, 2/Cd - 202531-1 - 354-2025311F1

Sea-Dog Line, Lines & Rigging
$10.69

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).

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Sea-Dog 353210 Flush Mount Gas Tank Vent - 353210-1 - 354-3532101F1

Sea-Dog Line, Lines & Rigging
$60.49

Investment Cast 316 Stainless Steel.

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Sea-Dog 3520201 Gas Tank Vent - All Thread, Chrome/Brass - 352020-1 - 354-3520201F1

Sea-Dog Line, Lines & Rigging
$18.69

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

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Sea-Dog 3513521 Stainless Cast Pipe Deck Fill, Water - 351352-1 - 354-3513521F1

Sea-Dog Line, Lines & Rigging
$100.39

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 chain. Installs with three #10 FH fasteners (not included). USCG regulations require bonding wire to prevent sparking.

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Sea-Dog 3513511 Stainless Cast Pipe Deck Fill, Diesel - 351351-1 - 354-3513511F1

Sea-Dog Line, Lines & Rigging
$100.39

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 chain. Installs with three #10 FH fasteners (not included). USCG regulations require bonding wire to prevent sparking.

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Sea-Dog 3513501 Stainless Cast Pipe Deck Fill, Gas - 351350-1 - 354-3513501F1

Sea-Dog Line, Lines & Rigging
$100.39

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 chain. Installs with three #10 FH fasteners (not included). USCG regulations require bonding wire to prevent sparking.

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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 included). UV resistant injection molded ABS construction. Avoid contact with acetone or strong solvents.

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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 included). UV resistant injection molded ABS construction. Avoid contact with acetone or strong solvents.

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Sea-Dog 3374011 Louvered Vent, White, A:3-11/16" , B:9", C:4-7/8", D:10-1/8" , #8 Fh - 337401-1 - 354-3374011F1

Sea-Dog Line, Lines & Rigging
$14.65

Injection molded ABS.

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Sea-Dog 337400 Louvered Vent, Black, A:3-11/16" , B:9", C:4-7/8", D:10-1/8" ,#8 Fh - 337400-1 - 354-3374001F1

Sea-Dog Line, Lines & Rigging
$14.31

Injection molded ABS.

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Sea-Dog 3373811 Louvered Vent, White, A: 1-7/8", B:4-1/4", C:3", D:5-1/2",#8 Fh - 337381-1 - 354-3373811F1

Sea-Dog Line, Lines & Rigging
$7.44

Injection molded ABS.

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Sea-Dog 3373801 Louvered Vent, Black, A: 1-7/8", B:4-1/4", C:3", D:5-1/2", #8 Fh - 337380-1 - 354-3373801F1

Sea-Dog Line, Lines & Rigging
$7.29

Injection molded ABS.

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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 3.04 square inches.

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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 3.04 square inches.

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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 interior hull with a #10 RH fastener (not included).

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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.