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!

Original & OEM Quality Parts

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Made from heavy duty waterproof material. This cover will keep your autoformer safe and protected from rain and the elements. Features heavy duty 'hook & loop' closures. Protect your investment, keep ... More Details

Keep your autoformer unit protected from the rain, and out of sight with this hardwired mounting kit. Made from heavy duty materials with all the necessary hardware. Kit Includes: 5-foot cord with mal... More Details

Made from heavy duty waterproof material. This cover will keep your autoformer safe and protected from rain and the elements. Features heavy duty 'hook & loop' closures. Protect your investment, keep ... More Details

Keep your autoformer unit protected from the rain, and out of sight with this hardwired mounting kit. Made from heavy duty materials with all the necessary hardware. Kit Includes: 5-foot cord with mal... More Details

The second-generation Power Watchdog introduces an innovative new design that sets it apart from any other surge protector on the market. The Power Watchdog offers enhanced weather protection, improve... More Details

The second-generation Power Watchdog introduces an innovative new design that sets it apart from any other surge protector on the market. The Power Watchdog offers enhanced weather protection, improve... More Details

The second-generation Power Watchdog introduces an innovative new design that sets it apart from any other surge protector on the market. The Power Watchdog offers enhanced weather protection, improve... More Details

Instant Problem DetectionError Code IndicatorLit Receptacle BayWeather-Proof Clamshell Receptacle Bay DoorTamper-Proof SecurityEnergy Use MeterGlowing White Indicator to indicate safe and normal power... More Details

The second-generation Power Watchdog introduces an innovative new design that sets it apart from any other surge protector on the market. The Power Watchdog offers enhanced weather protection, improve... More Details

Use this device to monitor your voltage with digital accuracy. Voltage below 108 or above 132, can damage your electrical devices. Simply plug in to any outlet in your RV to measure AC voltage. Also s... More Details

See if you are getting proper voltage with just a glance! The dual color digital voltmeter is highly accurate. If the LED light is green, this means your voltage is in an acceptable range. If the LED ... More Details

For use with generators with an 'open neutral or floating neutral'. Some generators have a 'floating neutral'. This might cause the Power Watchdog EPO surge protectors or any other EMS surge protector... More Details

Simple security cable with key to help prevent theft of your units. Heavy duty braided stainless steel cableTwo keys included1/4" x 40" long jacketed cable... More Details

Power Watchdog Smart Surge Protector offers 3,000(30A) & 6,100(50A) Joules of advanced surge protection for your coach and includes our patented Bluetooth connectivity so you can monitor live park pow... More Details

Offers 3,000(30A) & 6,100(50A) Joules of advanced surge protection for your coach. It features advanced circuit analysis to automatically shut off power in an emergency and includes our patented Bluet... More Details

Offers 3,000(30A) & 6,100(50A) Joules of advanced surge protection for your coach. It features advanced circuit analysis to automatically shut off power in an emergency and includes our patented Bluet... More Details

Power Watchdog Smart Surge Protector offers 3,000(30A) & 6,100(50A) Joules of advanced surge protection for your coach and includes our patented Bluetooth connectivity so you can monitor live park pow... More Details

Offers 3,000(30A) & 6,100(50A) Joules of advanced surge protection for your coach. It features advanced circuit analysis to automatically shut off power in an emergency and includes our patented Bluet... More Details

Offers 3,000(30A) & 6,100(50A) Joules of advanced surge protection for your coach. It features advanced circuit analysis to automatically shut off power in an emergency and includes our patented Bluet... More Details

For use with either the PWD30-EPO or PWD50-EPO Power Watchdog units. Whether you are a stargazer or concerned over too much light, this screen cover will reduce the light output. This shade sticks to ... More Details

Simple 10 minute installation!... More Details

Simple installation! The only tool required is a Phillips screw driver.2,400 Joules Surge Protection.... More Details

Simple installation! The only tool required is a Phillips screw driver.2,400 Joules Surge Protection.... More Details

Simple 10 minute installation!... More Details

Simple installation! The only tool required is a Phillips screw driver.4,800 Joules Surge Protection.... More Details

Simple installation! The only tool required is a Phillips screw driver.4,800 Joules Surge Protection.... More Details

Works with either 30 amp or 50 amp Autoformers. Made from heavy duty metal, buckles and foam padding, this mounting bracket allows you to mount the Autoformer on a wall, or on the floor of a compartme... More Details

Allows you to get alerts from any Power Watchdog product from miles away!How it works: Uses internet access (WiFi). This can be either 'camp' WiFi, or a personal jet pack set up. Once connected the sy... More Details

For use with the either 30 Amp or 50 Amp autoformers. Made from heavy duty ABS plastic material, this stand will keep your autoformer elevated up and out of dirt, mud or puddles. There are grooves and... More Details

SafeViewTM Power Inlets feature a smart circuit sensor that when you plug into shore power, you can see if your circuit wiring is good (all green lights). If there is a fault detected a dedicated lett... More Details

Works with ALL 30 Amp 3 Prong Twist Lock RV Power Cords. Twist lock design. Detects reversed polaritySoft glowing 'halo' light, if it is solid white, the wiring in the pedestal is correctEasy to read ... More Details

SafeViewTM Power Inlets feature a smart circuit sensor that when you plug into shore power, you can see if your circuit wiring is good (all green lights). If there is a fault detected a dedicated lett... More Details

Soft glowing 'halo' light, if it is solid white, the wiring in the pedestal is correct.Automatic detecting, just connect your shore cable.Easy to read blinking Red/Green LED circuit lights. Green is g... More Details

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Our products are shipped from Canada!
Parts Warehouse:
Toronto, Ontario, Canada
Head Office:
Kingston, Ontario

About Us

Northern Marine is a Canadian supplier of OEM and premium aftermarket marine and RV parts and accessories. 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.