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Stay in control on the water with precision boat gauges and electronics designed for MasterCraft, Supra, and Moomba boats. Whether you’re troubleshooting a faulty tachometer or replacing a MasterCraft MMDC box or MDC box, WaterSkis.com offers genuine parts made for seamless compatibility with your inboard boat’s electrical system.
Our collection includes factory gauges, MMDC and MDC units, and other essential components to restore accurate readouts for speed, RPM, engine temp, and more. Use our Boat Part Lookup Tool to quickly find the correct MasterCraft boat gauges, Supra gauges, or Moomba gauges by model and year—no guesswork required.
Reliable data means a smoother ride. Trust WaterSkis.com for fitment accuracy, trusted brands, and parts that perform when it matters most.
When your gauges or control systems are off, your whole day on the water can suffer. At WaterSkis.com, we stock genuine MasterCraft MMDC boxes, MDC boxes, and boat gauges built for performance and precision. Find the exact part for your boat using our Boat Part Lookup Tool, or explore other categories to keep your setup dialed in and ready to ride.