Marine Tank Monitor Parts and Kits
Know exactly how much water or gas is in every tank by using our water tank monitoring supplies. By getting accurate information about fluid levels, you prevent overfilling and have a heads-up if a tank is about to run dry. Depending on the design, a tank monitor system can also track temperature, pH and mineral levels, light intensity, equipment functionality and more.
Browse the Marine Parts Source catalog when you need to add a water tank monitor or update an existing system. Whether you’re shopping for a holding tank monitor, fuel tank monitor, livewell monitor or another system, we have the right parts. Leading brands link Dometic and Raritan manufacture OEM and aftermarket parts that feed you the accurate information you need.
Monitor Everything About Your Tanks
Never be left in the dark about what’s in the tank. We stock a variety of gas, water, oil and waste tank monitor parts that will fit your vessel. Get a water tank level indicator — what you may call a dipstick — for simple measurements or do advanced monitoring with vent probes, floats, ultrasonic tank senders and sensor modules. Of course, that data doesn’t mean much without a way to read and interpret it, which is why we also have tank monitor panels and level sensor screens.
Our representatives are here to help you get the correct monitoring parts for any boat tank. Call us toll-free at 866-388-0390 or use the contact form. Orders over $100 ship free from Marine Parts Source warehouses across the U.S.
Tank Monitors
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TWIII Level Indicator Cap with Vent | Dometic 313000350DOMETIC-313000350Qty In Stock: 12Brand: Dometic22 inch vented holding tank probe cap provides tank level readings for Dometic TW and DTM tank monitors.
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Stick-On Tank Sensor | Raritan STCTSART-STCTSAQty In Stock: 11Brand: Raritan EngineeringRaritan Stick On Tank Sensor for use with STC and STCBL flush controls. Learn More
SHST 13 inch Waste Tank Level Sender | KUS 26423KUS-26423Qty In Stock: 17Brand: KUS (Wema)SHST 13 inch Waste Tank Level Sender - Does not include Adapter Kit
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Wireless Single Tank Add-On Kit | Johnson Pump 73001JP-73001Qty In Stock: 1Brand: Johnson PumpWireless Single Tank Add-On Kit Learn More
VSM 422 Tank Sender Gasoline Tank Level | Blue Sea 1811BLUE-1811Qty In Stock: 1Brand: Blue Sea SystemsVSM 422 Tank Sender Gasoline Tank Level
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Switch Float & Lock Ring Kit | Dometic 385311103DOMETIC-385311103Qty In Stock: 0Brand: DometicSwitch Float & Lock Ring Kit
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Vessel Systems Monitor Tank Sender | Blue Sea 1810BLUE-1810Qty In Stock: 4Brand: Blue Sea SystemsUltrasonic tank sender provides accurate diesel, water, or waste tank level readings to Blue Sea System's VSM 422 monitor. Learn More
DTM04 Holding Tank Monitor Panel | Dometic 313604401DOMETIC-313604401Qty In Stock: 0Brand: DometicPanel assembly for Dometic DTM04 holding tank monitor system. Learn More
Float & Threaded Stem Kit | Dometic 385230268DOMETIC-385230268Qty In Stock: 3Brand: DometicFloat & Threaded Stem Kit Learn More© 2025 Marine Parts Source. All Rights Reserved.