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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Whale TCL4 9" Locker Door - Black

Deck Plates, Whale Marine
$109.25
TCL4 9" Locker Door - Black Keep storage areas dry with this tried, tested, and trusted black Whale locker door/deck hatch. Features: Reliable watertight seal Measurements: Diameter: 228 mm (9 in.) Ap... More Details

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Whale TCL4 9" Clear Locker Door

Deck Plates, Whale Marine
$121.90
TCL4 9" Clear Locker Door Keep storage areas dry with this tried, tested, and trusted black clear locker door/deck hatch. Features: Allows for easy inspection without having to open the door Measureme... More Details

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Whale TCL2 9" Locker Door - Diecast Aluminum

Deck Plates, Whale Marine
$230.18
TCL2 9" Locker Door - Diecast Aluminum Keep storage areas dry with this tried, tested, and trusted aluminum Whale locker door/deck hatch. Features: Robust aluminum construction with a locking lever  I... More Details

Textured Quarter Turn Deck Plate - White - 8"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross... More Details

Textured Quarter Turn Deck Plate - White - 6"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross... More Details

Textured Quarter Turn Deck Plate - White - 5"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross... More Details

Textured Quarter Turn Deck Plate - Black - 8"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross... More Details

Textured Quarter Turn Deck Plate - Black - 6"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross... More Details

Textured Quarter Turn Deck Plate - Black - 5"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross... More Details

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Sea-Dog Stainless Steel Deck Plate - 3"

Deck Plates, Sea-Dog
$180.63
Stainless Steel Deck Plate - 3"  Use with Sea-Dog® Deck Plate Keys 335680 or 335699 (not included). Use anti-seize lubricant to protect threads from galling. WARNING: This product can expose you to ch... More Details

Smooth Quarter Turn Deck Plate - White - 6"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross t... More Details

Smooth Quarter Turn Deck Plate - White - 5"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross t... More Details

Smooth Quarter Turn Deck Plate - White - 4"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross t... More Details

Smooth Quarter Turn Deck Plate - Black - 8"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross t... More Details

Smooth Quarter Turn Deck Plate - Black - 6"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross t... More Details

Smooth Quarter Turn Deck Plate - Black - 5"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross t... More Details

Smooth Quarter Turn Deck Plate - Black - 4"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening, jamming, and cross t... More Details

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Sea-Dog Screw-Out Deck Plate - White - 6"

Deck Plates, Sea-Dog
$21.34
Screw-Out Deck Plate - White - 6"  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 o... More Details

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Sea-Dog Screw-Out Deck Plate - White - 5"

Deck Plates, Sea-Dog
$19.11
Screw-Out Deck Plate - White - 5"  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 o... More Details

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Sea-Dog Screw-Out Deck Plate - White - 4"

Deck Plates, Sea-Dog
$16.61
Screw-Out Deck Plate - White - 4"  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 o... More Details

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Sea-Dog Screw-Out Deck Plate - Black - 6"

Deck Plates, Sea-Dog
$21.34
Screw-Out Deck Plate - Black - 6"  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 o... More Details

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Sea-Dog Screw-Out Deck Plate - Black - 5"

Deck Plates, Sea-Dog
$20.09
Screw-Out Deck Plate - Black - 5"  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 o... More Details

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Sea-Dog Screw-Out Deck Plate - Black - 4"

Deck Plates, Sea-Dog
$17.58
Screw-Out Deck Plate - Black - 4"  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 o... More Details

Quarter-Turn Textured Deck Plate with Internal Collar - White - 8"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightenin... More Details

Quarter-Turn Textured Deck Plate with Internal Collar - White - 6"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightenin... More Details

Quarter-Turn Textured Deck Plate with Internal Collar - White - 5"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightenin... More Details

Quarter-Turn Textured Deck Plate with Internal Collar - Black - 8"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightenin... More Details

Quarter-Turn Textured Deck Plate with Internal Collar - Black - 6"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightenin... More Details

Quarter-Turn Textured Deck Plate with Internal Collar - Black - 5"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightenin... More Details

Quarter-Turn Smooth Deck Plate with Internal Collar - White - 8"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening,... More Details

Quarter-Turn Smooth Deck Plate with Internal Collar - White - 6"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening,... More Details

Quarter-Turn Smooth Deck Plate with Internal Collar - White - 4"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening,... More Details

Quarter-Turn Smooth Deck Plate with Internal Collar - Black - 8"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening,... More Details

Quarter-Turn Smooth Deck Plate with Internal Collar - Black - 6"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening,... More Details

Quarter-Turn Smooth Deck Plate with Internal Collar - Black - 5"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening,... More Details

Quarter-Turn Smooth Deck Plate with Internal Collar - Black - 4"  The Sea-Dog® Quarter-Turn Deck Plate is constructed of UV stabilized ABS. Features a new locking system that prevents over tightening,... More Details

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Sea-Dog Pop-Out Textured Deck Plate - White - 8"

Deck Plates, Sea-Dog
$50.25
Pop-Out Textured Deck Plate - White - 8" The Sea-Dog® Pop-Out Deck Plate is constructed of UV stabilized molded ABS and polycarbonate for its structural strength, as well as weather and corrosion resi... More Details

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Sea-Dog Pop-Out Textured Deck Plate - White - 6"

Deck Plates, Sea-Dog
$45.24
Pop-Out Textured Deck Plate - White - 6" The Sea-Dog® Pop-Out Deck Plate is constructed of UV stabilized molded ABS and polycarbonate for its structural strength, as well as weather and corrosion resi... More Details

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Sea-Dog Deck Plate Lanyard - 12"

Deck Plates, Sea-Dog
$10.22
Deck Plate Lanyard - 12" This Deck Plate 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 R... More Details

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Perko 1" Chrome Unmarked Pipe Deck Plate

Deck Plates, Perko
$208.08
1" Chrome Unmarked Pipe Deck Plate Features: Cast Bronze Plain or Chrome Plated 1-1/4 and 1-1/2 Inch Caps have a slot between the holes Deck Plate Key and O-Ring Included Sizes 9, 10 & 11 have 4 mount... More Details

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Beckson 8" Smooth Center Screw-Out Deck Plate - White

Deck Plates, Beckson Marine
$81.18
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 8" Smooth Center Screw-Out Deck Plate - Beige

Deck Plates, Beckson Marine
$81.18
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 8" Smooth Center Pry-Out Deck Plate - White

Deck Plates, Beckson Marine
$87.01
Pry-Out Deck Plates Beckson developed the first pry-out deck plate. These plates were designed with an extra heavy O-ring to assure a water tight fit. Plates are provided with non-skid or smooth surfa... More Details

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Beckson 8" Non-Skid Pry-Out Deck Plate - White

Deck Plates, Beckson Marine
$87.01
Beckson Pry-Out Deck Plate Beckson developed the first pry-out deck plate as an access cover to its permanently mounted pump. These pry-out plates were designed with an extra heavy O-ring to assure a ... More Details

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Beckson 8" Non-Skid Pry-Out Deck Plate - Beige

Deck Plates, Beckson Marine
$87.01
Beckson Pry-Out Deck Plate Beckson developed the first pry-out deck plate as an access cover to its permanently mounted pump. These pry-out plates were designed with an extra heavy O-ring to assure a ... More Details

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Beckson 8" Clear Center Screw-Out Deck Plate - White

Deck Plates, Beckson Marine
$91.74
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 8" Clear Center Screw-Out Deck Plate - Black

Deck Plates, Beckson Marine
$91.74
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 8" Clear Center Screw-Out Deck Plate - Beige

Deck Plates, Beckson Marine
$91.74
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 8" Clear Center Pry-Out Deck Plate - Beige

Deck Plates, Beckson Marine
$97.30
Pry-Out Deck Plates Beckson developed the first pry-out deck plate. These plates were designed with an extra heavy O-ring to assure a water tight fit. Plates are provided with non-skid or smooth surfa... More Details

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Beckson 6" Stow-Away Deck Plate - White w/12" Bag

Deck Plates, Beckson Marine
$111.06
Stow-Away Deck Plates Safely store watches, wallets, car keys, glasses, any small items. The nylon bag features a sewn-in rigid ring that fits neatly into the deck plate to secure and support extra we... More Details

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Beckson 6" Stow-Away Deck Plate - Black w/12" Bag

Deck Plates, Beckson Marine
$111.06
Stow-Away Deck Plates Safely store watches, wallets, car keys, glasses, any small items. The nylon bag features a sewn-in rigid ring that fits neatly into the deck plate to secure and support extra we... More Details

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Beckson 6" Smooth Center Screw-Out Deck Plate - White

Deck Plates, Beckson Marine
$52.96
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 6" Smooth Center Screw-Out Deck Plate - Black

Deck Plates, Beckson Marine
$52.96
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 6" Smooth Center Screw-Out Deck Plate - Beige

Deck Plates, Beckson Marine
$52.96
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 6" Smooth Center Pry-Out Deck Plate - White

Deck Plates, Beckson Marine
$55.60
Pry-Out Deck Plates Beckson developed the first pry-out deck plate. These plates were designed with an extra heavy O-ring to assure a water tight fit. Plates are provided with non-skid or smooth surfa... More Details

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Beckson 6" Non-Skid Screw-Out Deck Plate - White

Deck Plates, Beckson Marine
$52.96
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 6" Non-Skid Screw-Out Deck Plate - Black

Deck Plates, Beckson Marine
$52.96
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 6" Non-Skid Pry-Out Deck Plate - White

Deck Plates, Beckson Marine
$55.60
Pry-Out Deck Plates Beckson developed the first pry-out deck plate. These plates were designed with an extra heavy O-ring to assure a water tight fit. Plates are provided with non-skid or smooth surfa... More Details

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Beckson 6" Non-Skid Pry-Out Deck Plate - Beige

Deck Plates, Beckson Marine
$55.60
Pry-Out Deck Plates Beckson developed the first pry-out deck plate. These plates were designed with an extra heavy O-ring to assure a water tight fit. Plates are provided with non-skid or smooth surfa... More Details

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Beckson 6" High-Torque Access Plate - Clear

Deck Plates, Beckson Marine
$96.74
6" High-Torque Access Plate - Clear Beckson screw-out access plates made their way in many different operating environments. The customers loved the durability and watertight seal, but after high pres... More Details

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Beckson 6" Clear Center Screw Out Deck Plate - White

Deck Plates, Beckson Marine
$63.52
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 6" Clear Center Pry-Out Deck Plate - White

Deck Plates, Beckson Marine
$60.74
Pry-Out Deck Plates Beckson developed the first pry-out deck plate. These plates were designed with an extra heavy O-ring to assure a water tight fit. Plates are provided with non-skid or smooth surfa... More Details

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Beckson 5" Twist-Out Deck Plate - White

Deck Plates, Beckson Marine
$41.70
Twist-Out Deck Plate The Beckson Twist-out Deck Plate is designed to conceal its mounting fasteners under the quick twist cover. The low profile cover is self-centering, and quickly locks in place wit... More Details

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Beckson 5" Twist-Out Deck Plate - Black

Deck Plates, Beckson Marine
$41.70
Twist-Out Deck Plate The Beckson Twist-out Deck Plate is designed to conceal its mounting fasteners under the quick twist cover. The low profile cover is self-centering, and quickly locks in place wit... More Details

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Beckson 5" Stow-Away Deck Plate - White w/12" Bag

Deck Plates, Beckson Marine
$94.24
Stow-Away Deck Plates Safely store watches, wallets, car keys, glasses, any small items. The nylon bag features a sewn-in rigid ring that fits neatly into the deck plate to secure and support extra we... More Details

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Beckson 5" Stow-Away Deck Plate - Black w/12" Bag

Deck Plates, Beckson Marine
$94.24
Stow-Away Deck Plates Safely store watches, wallets, car keys, glasses, any small items. The nylon bag features a sewn-in rigid ring that fits neatly into the deck plate to secure and support extra we... More Details

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Beckson 5" Stow-Away Deck Plate - Beige w/12" Bag

Deck Plates, Beckson Marine
$94.24
Stow-Away Deck Plates Safely store watches, wallets, car keys, glasses, any small items. The nylon bag features a sewn-in rigid ring that fits neatly into the deck plate to secure and support extra we... More Details

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Beckson 4" Stow-Away Deck Plate - White w/12" Bag

Deck Plates, Beckson Marine
$95.49
Stow-Away Deck Plates Safely store watches, wallets, car keys, glasses, any small items. The nylon bag features a sewn-in rigid ring that fits neatly into the deck plate to secure and support extra we... More Details

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Beckson 4" Stow-Away Deck Plate - Black w/12" Bag

Deck Plates, Beckson Marine
$95.49
Stow-Away Deck Plates Safely store watches, wallets, car keys, glasses, any small items. The nylon bag features a sewn-in rigid ring that fits neatly into the deck plate to secure and support extra we... More Details

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Beckson 4" Smooth Center Screw-Out Deck Plate - White

Deck Plates, Beckson Marine
$37.53
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 4" Smooth Center Screw-Out Deck Plate - Black

Deck Plates, Beckson Marine
$37.53
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 4" Smooth Center Screw-Out Deck Plate - Beige

Deck Plates, Beckson Marine
$37.53
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 4" Clear Center Screw-Out Deck Plate - White

Deck Plates, Beckson Marine
$47.12
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 4" Clear Center Screw-Out Deck Plate - Beige

Deck Plates, Beckson Marine
$47.12
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 4" Clear Center Screw Out Deck Plate - Black

Deck Plates, Beckson Marine
$47.12
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

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Beckson 6" Clear Center Screw-Out Deck Plate - Black

Deck Plates, Beckson Marine
$63.52
Screw-Out Deck Plate The Beckson Screw-Out Plate was designed to provide access without the use of tools, with a single start non-jamming (no cross-thread), extra strong, self-cleaning buttress thread... More Details

Northern Marine Canada
Proudly Canadian Owned & Operated!
Serving customers across Canada & the USA with marine parts and accessories.
Canadian Head Office:
Kingston, Ontario, Canada
Warehouse Locations:
Toronto, Ontario, Canada
New Jersey, USA
Florida, USA

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.