{"product_id":"mercury-gauge-volt-0-18v-79-8m6020045","title":"Mercury – Voltmeter 8–18V | Electrical System Monitoring | Black Face | Brushed Bezel | 79-8M6020045","description":"\u003cp data-end=\"75\" data-start=\"0\"\u003e\u003cstrong data-end=\"75\" data-start=\"0\"\u003eMercury – Voltmeter 8–18V | Electrical System Monitoring | Black Face | Brushed Bezel | 79-8M6020045\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"80\" data-start=\"77\"\u003e\n\u003cp data-end=\"582\" 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 straightforward look at your boat’s electrical health without bouncing around every time the hull moves. The needle settles into a smooth, steady sweep, which makes it easy to spot when the battery or charging system isn’t acting the way it should. Out on the water, it becomes something you check almost without thinking—just a quick glance to be sure everything’s holding steady. It’s a simple gauge that makes the day feel a little more predictable.\u003c\/p\u003e\n\u003chr data-end=\"587\" data-start=\"584\"\u003e\n\u003cp data-end=\"1132\" data-start=\"589\"\u003e\u003cstrong data-end=\"605\" data-start=\"589\"\u003eKey Features\u003c\/strong\u003e\u003cbr data-end=\"608\" data-start=\"605\"\u003e    • \u003cstrong data-end=\"649\" data-start=\"634\"\u003e8–18V Scale\u003c\/strong\u003e – Shows battery and charging voltage across the full operating range.\u003cbr data-end=\"722\" data-start=\"719\"\u003e    • \u003cstrong data-end=\"772\" data-start=\"748\"\u003eCalm Needle Movement\u003c\/strong\u003e – Holds a steady reading through chop and throttle changes.\u003cbr data-end=\"835\" data-start=\"832\"\u003e    • \u003cstrong data-end=\"882\" data-start=\"861\"\u003eStandard Dash Fit\u003c\/strong\u003e – Installs cleanly in common panel openings.\u003cbr data-end=\"930\" data-start=\"927\"\u003e    • \u003cstrong data-end=\"972\" data-start=\"956\"\u003eBacklit Face\u003c\/strong\u003e – Easy to read when the light starts to drop.\u003cbr data-end=\"1021\" data-start=\"1018\"\u003e    • \u003cstrong data-end=\"1069\" data-start=\"1047\"\u003eMarine-Ready Build\u003c\/strong\u003e – Made to handle spray, vibration, and long days on the water.\u003c\/p\u003e\n\u003chr data-end=\"1137\" data-start=\"1134\"\u003e\n\u003cp data-end=\"1351\" data-start=\"1139\"\u003e\u003cstrong data-end=\"1170\" data-start=\"1139\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003cbr data-end=\"1173\" data-start=\"1170\"\u003e    • FourStroke outboards\u003cbr data-end=\"1222\" data-start=\"1219\"\u003e    • Verado series\u003cbr data-end=\"1264\" data-start=\"1261\"\u003e    • Pro XS engines\u003cbr data-end=\"1307\" data-start=\"1304\"\u003e    • SmartCraft systems\u003c\/p\u003e\n\u003chr data-end=\"1356\" data-start=\"1353\"\u003e\n\u003cp data-end=\"1784\" data-start=\"1358\"\u003e\u003cstrong data-end=\"1394\" data-start=\"1358\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003cbr data-end=\"1397\" data-start=\"1394\"\u003eOn the water, this gauge helps you pick up on electrical issues before they turn into bigger headaches. The smooth sweep makes low voltage or odd spikes easy to notice without staring at the panel. It feels natural to check while settling into cruise, idling through a marina, or firing up accessories. Over time, it becomes one of those quiet checks that keeps the day running smoothly.\u003c\/p\u003e\n\u003chr data-end=\"1789\" data-start=\"1786\"\u003e\n\u003cp data-end=\"2062\" data-start=\"1791\"\u003e\u003cstrong data-end=\"1806\" data-start=\"1791\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003cbr data-end=\"1809\" data-start=\"1806\"\u003eOEM gauges follow Mercury’s electrical signals closely, which keeps the readings straight. They hold up better to heat, vibration, and weather than bargain replacements. Most boaters stick with OEM because it keeps the system honest season after season.\u003c\/p\u003e\n\u003chr data-end=\"2067\" data-start=\"2064\"\u003e\n\u003cp data-end=\"2235\" data-start=\"2069\"\u003e\u003cstrong data-end=\"2076\" data-start=\"2069\"\u003eFAQ\u003c\/strong\u003e\u003cbr data-end=\"2079\" data-start=\"2076\"\u003e\u003cstrong data-end=\"2136\" data-start=\"2079\"\u003e1. How do I know if the voltmeter’s starting to fail?\u003c\/strong\u003e\u003cbr data-end=\"2139\" data-start=\"2136\"\u003eIf the needle hangs up, barely moves, or jumps around for no reason, it’s likely on its way out.\u003c\/p\u003e\n\u003cp data-end=\"2387\" data-start=\"2237\"\u003e\u003cstrong data-end=\"2277\" data-start=\"2237\"\u003e2. Does this gauge need calibration?\u003c\/strong\u003e\u003cbr data-end=\"2280\" data-start=\"2277\"\u003eMost setups read correctly once wired, but checking grounds and connections during install is a smart step.\u003c\/p\u003e\n\u003cp data-end=\"2507\" data-start=\"2389\"\u003e\u003cstrong data-end=\"2429\" data-start=\"2389\"\u003e3. How does it hold up in saltwater?\u003c\/strong\u003e\u003cbr data-end=\"2432\" data-start=\"2429\"\u003eA quick rinse after each trip helps it last through full saltwater seasons.\u003c\/p\u003e\n\u003cp data-end=\"2637\" data-start=\"2509\"\u003e\u003cstrong data-end=\"2555\" data-start=\"2509\"\u003e4. Anything important during installation?\u003c\/strong\u003e\u003cbr data-end=\"2558\" data-start=\"2555\"\u003eGood grounding and clean power wiring help the needle stay steady and accurate.\u003c\/p\u003e\n\u003cp data-end=\"2797\" data-start=\"2639\"\u003e\u003cstrong data-end=\"2695\" data-start=\"2639\"\u003e5. What does low voltage usually look like underway?\u003c\/strong\u003e\u003cbr data-end=\"2698\" data-start=\"2695\"\u003eYou’ll see the needle dip toward the lower end and stay there, often before other symptoms show up.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936502337827,"sku":"79-8M6020045","price":34.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV1003011.jpg?v=1720533525","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-gauge-volt-0-18v-79-8m6020045","provider":"PartsVu","version":"1.0","type":"link"}