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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TPC series tail pieces are threaded with NPS (straight) female pipe thread, and are for use with GROCO SV series seacocks or with any product with straight male pipe thread. TPS series 90° tail pieces... More Details
TPC series tail pieces are threaded with NPS (straight) female pipe thread, and are for use with GROCO SV series seacocks or with any product with straight male pipe thread. TPS series 90° tail pieces... More Details
TPC series tail pieces are threaded with NPS (straight) female pipe thread, and are for use with GROCO SV series seacocks or with any product with straight male pipe thread. TPS series 90° tail pieces... More Details
TP tail pieces are threaded with NPS (straight) female pipe thread, and are for use with GROCO SV series seacocks or with any product with straight male pipe thread.NOT TO BE USED IN POTABLE WATER SYS... More Details
TP tail pieces are threaded with NPS (straight) female pipe thread, and are for use with GROCO SV series seacocks or with any product with straight male pipe thread.NOT TO BE USED IN POTABLE WATER SYS... More Details
Services deck plates or strainer caps with key holes up to 7" apart. Pins fit holes up to 5/16".... More Details
Delrin impeller and blades are not affected by diesel fuel or crankcase oil. Self-priming to 24". Mounts in any position in dry location. Motor not waterproof. 1/2" NPT threaded ports. Use 1/2" minimu... More Details
Delrin impeller and blades are not affected by diesel fuel or crankcase oil. Self-priming to 24". Mounts in any position in dry location. Motor not waterproof. 1/2" NPT threaded ports. Use 1/2" minimu... More Details
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Groco Sp99 Vane Blades, 4/Pk - Sp99 - 34-Sp99F1

Groco, Miscellaneous
$22.99
Vane Blades... More Details
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Groco Pst-2 Pressure Storage Tank - Pst2 - 34-Pst2F1

Groco, Miscellaneous
$675.99
A pneumatic pressure charge, matched to the pump cut-on pressure prevents waterlogging by separating the air charge from system water pressure with a rubber bladder. The result is smooth pressure deli... More Details
A pneumatic pressure charge, matched to the pump cut-on pressure prevents waterlogging by separating the air charge from system water pressure with a rubber bladder. The result is smooth pressure deli... More Details
PN Series cast bronze pipe nipples provide exact alloy compatibility for making inter-connections between numerous marine components such as seacocks, strainers and check valves. Cast-in wrench flat s... More Details
PN Series cast bronze pipe nipples provide exact alloy compatibility for making inter-connections between numerous marine components such as seacocks, strainers and check valves. Cast-in wrench flat s... More Details
PN Series cast bronze pipe nipples provide exact alloy compatibility for making inter-connections between numerous marine components such as seacocks, strainers and check valves. Cast-in wrench flat s... More Details
PN Series cast bronze pipe nipples provide exact alloy compatibility for making inter-connections between numerous marine components such as seacocks, strainers and check valves. Cast-in wrench flat s... More Details
PN Series cast bronze pipe nipples provide exact alloy compatibility for making inter-connections between numerous marine components such as seacocks, strainers and check valves. Cast-in wrench flat s... More Details
PN Series cast bronze pipe nipples provide exact alloy compatibility for making inter-connections between numerous marine components such as seacocks, strainers and check valves. Cast-in wrench flat s... More Details
PN Series cast bronze pipe nipples provide exact alloy compatibility for making inter-connections between numerous marine components such as seacocks, strainers and check valves. Cast-in wrench flat s... More Details
Improved valve system requiring less water per flush which makes it ideal for boats using holding tanks and easier pumping and no recirculation. Long stroke piston type pump for smooth, dependable ope... More Details
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Groco Gpb Gear Pump 12V - Gpbr-1 12V - 34-Gpbr1F1

Groco, Miscellaneous
$1,132.99
Reversible models can operate in either direction. Relatively low flow (less than vane pumps) makes them suitable for duties such as deck-wash, fuel transfer, ballast transfer, and oil change. Ignitio... More Details
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Groco Gpb Gear Pump 12V - Gpb-1 12V - 34-Gpb1F1

Groco, Miscellaneous
$772.69
Reversible models can operate in either direction. Relatively low flow (less than vane pumps) makes them suitable for duties such as deck-wash, fuel transfer, ballast transfer, and oil change. Ignitio... More Details
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Groco G3 12V Oil Change System - G-3A 12V - 34-G312Vf1

Groco, Miscellaneous
$1,682.39
At the heart of the U-Lube system is a powerful gear pump. All models have dry-run protection, touchpad control, a plumbing schematic to tell you what hose goes where, and a handy maintenance log.... More Details
Ideal for baitwell or any onboard pumping job that needs high flow and low pressure. Includes garden hose adapter. Motor is ignition protected. Includes an adapter for garden hose conection.NOT TO BE ... 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.