{"product_id":"mercury-harn-exc-ext-20ft-84-8m0176941","title":"Mercury – Extension Harness | 2-Pin Excitation and Ground | 84-8M0176941","description":"\u003cp data-start=\"0\" data-end=\"76\"\u003e\u003cstrong data-start=\"0\" data-end=\"76\"\u003eMercury – Extension Harness | 2-Pin Excitation and Ground | 84-8M0176941\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"78\" data-end=\"81\"\u003e\n\u003cp data-start=\"83\" data-end=\"587\"\u003e\u003cstrong data-start=\"83\" data-end=\"95\"\u003eOverview\u003c\/strong\u003e\u003cbr data-start=\"95\" data-end=\"98\"\u003eThis twenty-foot harness is meant for boats where the isolator sits well away from the rig center and shorter runs just won’t reach without stressing the wiring. The extra length lets you route it the way you actually want to, instead of fighting tight corners or forcing awkward bends. It helps keep the rigging bay calmer and easier to work around, especially on larger hulls with long wiring paths. It’s a simple add-on that saves a lot of trouble during installation and later service.\u003c\/p\u003e\n\u003chr data-start=\"589\" data-end=\"592\"\u003e\n\u003cp data-start=\"594\" data-end=\"1098\"\u003e\u003cstrong data-start=\"594\" data-end=\"610\"\u003eKey Features\u003c\/strong\u003e\u003cbr data-start=\"610\" data-end=\"613\"\u003e    • \u003cstrong data-start=\"639\" data-end=\"655\"\u003e2-Pin Layout\u003c\/strong\u003e – Carries excitation and ground to the isolator.\u003cbr data-start=\"704\" data-end=\"707\"\u003e    • \u003cstrong data-start=\"733\" data-end=\"758\"\u003eRig Center Connection\u003c\/strong\u003e – Plugs directly into the rig center.\u003cbr data-start=\"796\" data-end=\"799\"\u003e    • \u003cstrong data-start=\"825\" data-end=\"850\"\u003eIsolator Adapter Link\u003c\/strong\u003e – Connects cleanly to the isolator adapter.\u003cbr data-start=\"894\" data-end=\"897\"\u003e    • \u003cstrong data-start=\"923\" data-end=\"945\"\u003eTwenty-Foot Length\u003c\/strong\u003e – Designed for long transoms and extended routing paths.\u003cbr data-start=\"1002\" data-end=\"1005\"\u003e    • \u003cstrong data-start=\"1031\" data-end=\"1061\"\u003eConsistent Electrical Path\u003c\/strong\u003e – Helps keep system behavior steady.\u003c\/p\u003e\n\u003chr data-start=\"1100\" data-end=\"1103\"\u003e\n\u003cp data-start=\"1105\" data-end=\"1292\"\u003e\u003cstrong data-start=\"1105\" data-end=\"1136\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003cbr data-start=\"1136\" data-end=\"1139\"\u003e    • Rig center systems\u003cbr data-start=\"1183\" data-end=\"1186\"\u003e    • Isolator adapter setups\u003cbr data-start=\"1235\" data-end=\"1238\"\u003e    • Multi-engine digital layouts\u003c\/p\u003e\n\u003chr data-start=\"1294\" data-end=\"1297\"\u003e\n\u003cp data-start=\"1299\" data-end=\"1701\"\u003e\u003cstrong data-start=\"1299\" data-end=\"1335\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003cbr data-start=\"1335\" data-end=\"1338\"\u003eThe longer reach makes it easy to lay the harness in a relaxed, natural route instead of forcing it into cramped spaces. That usually means less wear, fewer pinch points, and a cleaner wiring bay. It also makes troubleshooting easier because the path is straightforward and easy to follow. Overall, it brings a bit of order to areas that tend to get crowded fast.\u003c\/p\u003e\n\u003chr data-start=\"1703\" data-end=\"1706\"\u003e\n\u003cp data-start=\"1708\" data-end=\"1982\"\u003e\u003cstrong data-start=\"1708\" data-end=\"1723\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003cbr data-start=\"1723\" data-end=\"1726\"\u003eOEM harnesses stay tight and reliable through vibration, heat, and long seasons on the water. The connectors fit the system exactly as Mercury designed, which helps avoid signal quirks or loose joints. It’s dependable wiring you don’t have to second-guess.\u003c\/p\u003e\n\u003chr data-start=\"1984\" data-end=\"1987\"\u003e\n\u003cp data-start=\"1989\" data-end=\"2172\"\u003e\u003cstrong data-start=\"1989\" data-end=\"1996\"\u003eFAQ\u003c\/strong\u003e\u003cbr data-start=\"1996\" data-end=\"1999\"\u003e\u003cstrong data-start=\"1999\" data-end=\"2052\"\u003eQ1: How do I know I need the twenty-foot version?\u003c\/strong\u003e\u003cbr data-start=\"2052\" data-end=\"2055\"\u003eA: If the isolator sits far from the rig center and shorter options feel stretched, this gives you the room you need.\u003c\/p\u003e\n\u003cp data-start=\"2174\" data-end=\"2282\"\u003e\u003cstrong data-start=\"2174\" data-end=\"2217\"\u003eQ2: Does this harness need calibration?\u003c\/strong\u003e\u003cbr data-start=\"2217\" data-end=\"2220\"\u003eA: No—once connected, it simply carries excitation and ground.\u003c\/p\u003e\n\u003cp data-start=\"2284\" data-end=\"2413\"\u003e\u003cstrong data-start=\"2284\" data-end=\"2325\"\u003eQ3: How does it hold up in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2325\" data-end=\"2328\"\u003eA: With the usual rinsing and a quick connector check now and then, it holds up well.\u003c\/p\u003e\n\u003cp data-start=\"2415\" data-end=\"2542\"\u003e\u003cstrong data-start=\"2415\" data-end=\"2445\"\u003eQ4: Any installation tips?\u003c\/strong\u003e\u003cbr data-start=\"2445\" data-end=\"2448\"\u003eA: Use the extra length to make a smooth, open routing path and leave space for future access.\u003c\/p\u003e\n\u003cp data-start=\"2544\" data-end=\"2688\"\u003e\u003cstrong data-start=\"2544\" data-end=\"2604\"\u003eQ5: What are the early signs the harness may be failing?\u003c\/strong\u003e\u003cbr data-start=\"2604\" data-end=\"2607\"\u003eA: Flickering readings, charging inconsistencies, or corrosion at the connectors.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935981162787,"sku":"84-8M0176941","price":84.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV802788.jpg?v=1720534787","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-harn-exc-ext-20ft-84-8m0176941","provider":"PartsVu","version":"1.0","type":"link"}