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

Results 51 - 75 of 338
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Groco Sth Bronze Scoop Thru-Hull With Nut - Sth-750-W - 34-Sth750Wf1

Groco, Thru-Hulls & Seacocks
$65.08

Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sth Bronze Scoop Thru-Hull With Nut - Sth-500-W - 34-Sth500Wf1

Groco, Thru-Hulls & Seacocks
$51.83

Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sth Bronze Scoop Thru-Hull With Nut - Sth-2500-W - 34-Sth2500Wf1

Groco, Thru-Hulls & Seacocks
$357.19

Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sth Bronze Scoop Thru-Hull With Nut - Sth-2000-W - 34-Sth2000Wf1

Groco, Thru-Hulls & Seacocks
$245.45

Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sth Bronze Scoop Thru-Hull With Nut - Sth-1500-W - 34-Sth1500Wf1

Groco, Thru-Hulls & Seacocks
$141.96

Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sth Bronze Scoop Thru-Hull With Nut - Sth-1250-W - 34-Sth1250Wf1

Groco, Thru-Hulls & Seacocks
$127.26

Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sth Bronze Scoop Thru-Hull With Nut - Sth-1000-W - 34-Sth1000Wf1

Groco, Thru-Hulls & Seacocks
$88.76

Includes locking nut. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Stainless Steel Thru-Hull Fitting, 3/4" - Th-750-Ws - 34-Th750Wsf1

Groco, Thru-Hulls & Seacocks
$29.79

NPSM / NPT combination thread#316 Stainless SteelUL Listed 647B

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Groco Stainless Steel Thru-Hull Fitting, 1/2" - Th-500-Ws - 34-Th500Wsf1

Groco, Thru-Hulls & Seacocks
$31.29

NPSM / NPT combination thread#316 Stainless SteelUL Listed 647B

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Groco Stainless Steel Thru-Hull Fitting, 1" - Th-1000-Ws - 34-Th1000Wsf1

Groco, Thru-Hulls & Seacocks
$85.09

NPSM / NPT combination thread#316 Stainless SteelUL Listed 647B

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Groco Stainless Steel Thru-Hull Fitting, 1-1/4" - Th-1250-Ws - 34-Th1250Wsf1

Groco, Thru-Hulls & Seacocks
$94.99

NPSM / NPT combination thread#316 Stainless SteelUL Listed 647B

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Groco Stainless Steel Thru-Hull Fitting, 1-1/2" - Th-1500-Ws - 34-Th1500Wsf1

Groco, Thru-Hulls & Seacocks
$99.39

NPSM / NPT combination thread#316 Stainless SteelUL Listed 647B

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Groco Ssc Bronze Engine Flush Kit And Safety Seacock Conversion - Ssc-2000 - 34-Ssc2000F1

Groco, Thru-Hulls & Seacocks
$408.29

Allows instant emergency bilge pumping, or to simplify winterization and cooling system flushing. While the engine is running, close the seacock and remove the quick release plug. Includes service adaptor.

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Groco Ssc Bronze Engine Flush Kit And Safety Seacock Conversion - Ssc-1250 - 34-Ssc1250F1

Groco, Thru-Hulls & Seacocks
$305.59

Allows instant emergency bilge pumping, or to simplify winterization and cooling system flushing. While the engine is running, close the seacock and remove the quick release plug. Includes service adaptor.

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Groco Spo Heavy Duty Vane Pump 12V - Spo-60-R 12V - 34-Spo60R12Vf1

Groco, Miscellaneous
$1,200.09

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" minimum or 5/8" for oil minimum reinforced hose. For pumping water amps/fuse is 7/15, and wire size is #12 up to 40'. For pumping oil amps/fuse is -17/30 and wire size is #8 up to 40'. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Spo Heavy Duty Vane Pump 12V - Spo-60-N 12V - 34-Spo60N12Vf1

Groco, Miscellaneous
$805.69

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" minimum or 5/8" for oil minimum reinforced hose. For pumping water amps/fuse is 7/15, and wire size is #12 up to 40'. For pumping oil amps/fuse is -17/30 and wire size is #8 up to 40'. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sp99 Vane Blades, 4/Pk - Sp99 - 34-Sp99F1

Groco, Miscellaneous
$22.99

Vane Blades

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Groco Sc2500 Bronze Slotted Strainer With Mount Ring - Sc-2500 - 34-Sc2500F1

Groco, Thru-Hulls & Seacocks
$235.74

Mount the ring permanently. Fasten the strainer to the ring and remove as often as needed. Uses 6 #10 fasteners.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sc1500Al Aluminum Slotted Strainer With Mount Ring - Sc1500Al - 34-Sc1500Alf1

Groco, Thru-Hulls & Seacocks
$243.89

Mount the ring permanently. Fasten the strainer to the ring and remove as often as needed. Uses 6 #10 fasteners.

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Groco Sc1500 Bronze Slotted Strainer With Mount Ring - Sc-1500 - 34-Sc1500F1

Groco, Thru-Hulls & Seacocks
$188.69

Mount the ring permanently. Fasten the strainer to the ring and remove as often as needed. Uses 6 #10 fasteners.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sc1000 Bronze Slotted Strainer With Mount Ring - Sc-1000 - 34-Sc1000F1

Groco, Thru-Hulls & Seacocks
$88.66

Mount the ring permanently. Fasten the strainer to the ring and remove as often as needed. Uses 6 #10 fasteners.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sc Bronze Slotted Strainer Without Mount Ring - Sc-2500-L - 34-Sc2500Lf1

Groco, Thru-Hulls & Seacocks
$161.79

Bronze. Uses 6 #10 fasteners.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sc Bronze Slotted Strainer Without Mount Ring - Sc-1500-L - 34-Sc1500Lf1

Groco, Thru-Hulls & Seacocks
$89.19

Bronze. Uses 6 #10 fasteners.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Sc Bronze Slotted Strainer Without Mount Ring - Sc-1000-L - 34-Sc1000Lf1

Groco, Thru-Hulls & Seacocks
$52.09

Bronze. Uses 6 #10 fasteners.NOT TO BE USED IN POTABLE WATER SYSTEMS.

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Groco Rsc Bronze Round Hull Strainer With Access - Rsc-2000 - 34-Rsc2000F1

Groco, Thru-Hulls & Seacocks
$176.79

Bronze. With mounting ring. Easy access to the thru-hull fitting and seacock beneath Groco hull strainer with patented access door design. No need to remove the entire strainer to clear nuisance marine growth. NOT TO BE USED IN POTABLE WATER SYSTEMS.

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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.