{"product_id":"mercury-gauge-volt-0-18-79-8m6020069","title":"Mercury – Voltmeter 8–18V | Electrical System Monitoring | White Face | Brushed Bezel | 79-8M6020069","description":"\u003cp data-end=\"75\" data-start=\"0\"\u003e\u003cstrong data-end=\"75\" data-start=\"0\"\u003eMercury – Voltmeter 8–18V | Electrical System Monitoring | White Face | Brushed Bezel | 79-8M6020069\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"80\" data-start=\"77\"\u003e\n\u003cp data-end=\"524\" data-start=\"82\"\u003e\u003cstrong data-end=\"94\" data-start=\"82\"\u003eOverview\u003c\/strong\u003e\u003cbr data-end=\"97\" data-start=\"94\"\u003eThis 8–18V voltmeter gives you a clear look at how the boat’s electrical system is holding up without the needle bouncing every time you hit a bit of chop. The sweep is slow and steady, so you can spot an odd dip or spike with a quick glance. Out on the water, it becomes a simple habit—take a look, make sure things look normal, and keep running. It’s a low-key, reliable gauge that helps you stay ahead of electrical trouble.\u003c\/p\u003e\n\u003chr data-end=\"529\" data-start=\"526\"\u003e\n\u003cp data-end=\"1033\" data-start=\"531\"\u003e\u003cstrong data-end=\"547\" data-start=\"531\"\u003eKey Features\u003c\/strong\u003e\u003cbr data-end=\"550\" data-start=\"547\"\u003e    • \u003cstrong data-end=\"591\" data-start=\"576\"\u003e8–18V Scale\u003c\/strong\u003e – Shows charging and battery voltage in the full working range.\u003cbr data-end=\"658\" data-start=\"655\"\u003e    • \u003cstrong data-end=\"705\" data-start=\"684\"\u003eCalm Needle Sweep\u003c\/strong\u003e – Stays steady through bumps, turns, and throttle changes.\u003cbr data-end=\"767\" data-start=\"764\"\u003e    • \u003cstrong data-end=\"814\" data-start=\"793\"\u003eStandard Dash Fit\u003c\/strong\u003e – Sits cleanly in common dash openings.\u003cbr data-end=\"857\" data-start=\"854\"\u003e    • \u003cstrong data-end=\"902\" data-start=\"883\"\u003eBacklit Display\u003c\/strong\u003e – Easy to read when light starts to fade.\u003cbr data-end=\"947\" data-start=\"944\"\u003e    • \u003cstrong data-end=\"995\" data-start=\"973\"\u003eMarine-Ready Build\u003c\/strong\u003e – Handles heat, spray, and vibration.\u003c\/p\u003e\n\u003chr data-end=\"1038\" data-start=\"1035\"\u003e\n\u003cp data-end=\"1252\" data-start=\"1040\"\u003e\u003cstrong data-end=\"1071\" data-start=\"1040\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003cbr data-end=\"1074\" data-start=\"1071\"\u003e    • FourStroke outboards\u003cbr data-end=\"1123\" data-start=\"1120\"\u003e    • Verado series\u003cbr data-end=\"1165\" data-start=\"1162\"\u003e    • Pro XS engines\u003cbr data-end=\"1208\" data-start=\"1205\"\u003e    • SmartCraft systems\u003c\/p\u003e\n\u003chr data-end=\"1257\" data-start=\"1254\"\u003e\n\u003cp data-end=\"1671\" data-start=\"1259\"\u003e\u003cstrong data-end=\"1295\" data-start=\"1259\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003cbr data-end=\"1298\" data-start=\"1295\"\u003eWhen you’re out for the day, this gauge makes it simple to catch small electrical problems before they grow. A steady needle makes changes easy to notice, whether you’re cruising, idling, or running lights and accessories. It’s quick to check and doesn’t pull your attention away from the water. Over time, it becomes one of those quiet checks that keeps things dependable.\u003c\/p\u003e\n\u003chr data-end=\"1676\" data-start=\"1673\"\u003e\n\u003cp data-end=\"1948\" data-start=\"1678\"\u003e\u003cstrong data-end=\"1693\" data-start=\"1678\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003cbr data-end=\"1696\" data-start=\"1693\"\u003eOEM gauges follow Mercury’s electrical signals accurately, so the reading stays consistent. They handle weather, heat, and vibration better than cheaper gauges. Most boaters stick with OEM because it keeps the information straight and avoids guesswork.\u003c\/p\u003e\n\u003chr data-end=\"1953\" data-start=\"1950\"\u003e\n\u003cp data-end=\"2112\" data-start=\"1955\"\u003e\u003cstrong data-end=\"1962\" data-start=\"1955\"\u003eFAQ\u003c\/strong\u003e\u003cbr data-end=\"1965\" data-start=\"1962\"\u003e\u003cstrong data-end=\"2023\" data-start=\"1965\"\u003e1. How do I know if the voltmeter is starting to fail?\u003c\/strong\u003e\u003cbr data-end=\"2026\" data-start=\"2023\"\u003eIf the needle freezes, jumps around, or barely moves, the gauge is likely wearing out.\u003c\/p\u003e\n\u003cp data-end=\"2268\" data-start=\"2114\"\u003e\u003cstrong data-end=\"2154\" data-start=\"2114\"\u003e2. Does this gauge need calibration?\u003c\/strong\u003e\u003cbr data-end=\"2157\" data-start=\"2154\"\u003eMost of the time it reads correctly right away, but checking wiring and grounds during install is always smart.\u003c\/p\u003e\n\u003cp data-end=\"2380\" data-start=\"2270\"\u003e\u003cstrong data-end=\"2310\" data-start=\"2270\"\u003e3. How does it hold up in saltwater?\u003c\/strong\u003e\u003cbr data-end=\"2313\" data-start=\"2310\"\u003eA quick rinse after the run helps it last through salty conditions.\u003c\/p\u003e\n\u003cp data-end=\"2515\" data-start=\"2382\"\u003e\u003cstrong data-end=\"2428\" data-start=\"2382\"\u003e4. Anything important during installation?\u003c\/strong\u003e\u003cbr data-end=\"2431\" data-start=\"2428\"\u003eMake sure the power and ground wires are clean and tight so the needle stays steady.\u003c\/p\u003e\n\u003cp data-end=\"2643\" data-start=\"2517\"\u003e\u003cstrong data-end=\"2564\" data-start=\"2517\"\u003e5. What does low voltage usually look like?\u003c\/strong\u003e\u003cbr data-end=\"2567\" data-start=\"2564\"\u003eThe needle drops toward the low side and stays there, especially under load.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936499290403,"sku":"79-8M6020069","price":34.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV1002985_5.jpg?v=1698797823","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-gauge-volt-0-18-79-8m6020069","provider":"PartsVu","version":"1.0","type":"link"}