{"product_id":"mercury-harn-outer-70-84-8m0173573","title":"Mercury – Outer Helm Extension Harness | 70-Foot Extension | 84-8M0173573","description":"\u003cp data-start=\"0\" data-end=\"77\"\u003e\u003cstrong data-start=\"0\" data-end=\"77\"\u003eMercury – Outer Helm Extension Harness | 70-Foot Extension | 84-8M0173573\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"79\" data-end=\"82\"\u003e\n\u003cp data-start=\"84\" data-end=\"647\"\u003e\u003cstrong data-start=\"84\" data-end=\"96\"\u003eOverview\u003c\/strong\u003e\u003cbr data-start=\"96\" data-end=\"99\"\u003eThis 70-foot extension harness is built for the biggest, widest triple- and quad-engine boats—setups where the outer engines sit so far outboard that even long standard harnesses won’t reach cleanly. When the wiring path winds through long tunnels, bulkheads, or deep rigging channels, this extension keeps you from stretching or forcing the harness. It lets the wiring run in a smooth, natural line, which helps the controls stay steady and predictable. On large offshore rigs, this extra length makes rigging and later service a whole lot easier.\u003c\/p\u003e\n\u003chr data-start=\"649\" data-end=\"652\"\u003e\n\u003cp data-start=\"654\" data-end=\"1225\"\u003e\u003cstrong data-start=\"654\" data-end=\"670\"\u003eKey Features\u003c\/strong\u003e\u003cbr data-start=\"670\" data-end=\"673\"\u003e    • \u003cstrong data-start=\"699\" data-end=\"720\"\u003e70-Foot Extension\u003c\/strong\u003e – Long reach for very wide transoms and extended routing paths.\u003cbr data-start=\"784\" data-end=\"787\"\u003e    • \u003cstrong data-start=\"813\" data-end=\"833\"\u003eOuter-Engine Use\u003c\/strong\u003e – Made for the outside engines on triple and quad DTS systems.\u003cbr data-start=\"896\" data-end=\"899\"\u003e    • \u003cstrong data-start=\"925\" data-end=\"943\"\u003eOEM Connectors\u003c\/strong\u003e – Factory ends that snap in firmly and stay locked.\u003cbr data-start=\"995\" data-end=\"998\"\u003e    • \u003cstrong data-start=\"1024\" data-end=\"1044\"\u003eFlexible Routing\u003c\/strong\u003e – Helps avoid pinch points, sharp turns, and over-stressed wiring.\u003cbr data-start=\"1111\" data-end=\"1114\"\u003e    • \u003cstrong data-start=\"1140\" data-end=\"1163\"\u003eStable Control Path\u003c\/strong\u003e – Keeps throttle and shift signals clean over long distances.\u003c\/p\u003e\n\u003chr data-start=\"1227\" data-end=\"1230\"\u003e\n\u003cp data-start=\"1232\" data-end=\"1400\"\u003e\u003cstrong data-start=\"1232\" data-end=\"1263\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003cbr data-start=\"1263\" data-end=\"1266\"\u003e    • Triple engine\u003cbr data-start=\"1305\" data-end=\"1308\"\u003e    • Quad engine\u003cbr data-start=\"1345\" data-end=\"1348\"\u003e    • Outer-engine helm pathways\u003c\/p\u003e\n\u003chr data-start=\"1402\" data-end=\"1405\"\u003e\n\u003cp data-start=\"1407\" data-end=\"1851\"\u003e\u003cstrong data-start=\"1407\" data-end=\"1443\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003cbr data-start=\"1443\" data-end=\"1446\"\u003eOn large offshore hulls, this extension stops the harness from being wedged into cramped spots or pulled across long, awkward routes. The controls feel smoother because the wiring isn’t kinked or stretched to reach. You also end up with more breathing room in the rigging bay, which makes inspections and servicing a lot easier. For big multi-engine layouts, the extra slack keeps the whole system calmer.\u003c\/p\u003e\n\u003chr data-start=\"1853\" data-end=\"1856\"\u003e\n\u003cp data-start=\"1858\" data-end=\"2124\"\u003e\u003cstrong data-start=\"1858\" data-end=\"1873\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003cbr data-start=\"1873\" data-end=\"1876\"\u003eOEM wiring holds up to vibration, heat, and saltwater better than generic cable. The connectors match Mercury’s system exactly, which means fewer loose connections and far fewer electrical gremlins. It’s dependable rigging made for real marine use.\u003c\/p\u003e\n\u003chr data-start=\"2126\" data-end=\"2129\"\u003e\n\u003cp data-start=\"2131\" data-end=\"2326\"\u003e\u003cstrong data-start=\"2131\" data-end=\"2138\"\u003eFAQ\u003c\/strong\u003e\u003cbr data-start=\"2138\" data-end=\"2141\"\u003e\u003cstrong data-start=\"2141\" data-end=\"2190\"\u003eQ1: How do I know I need the 70-foot version?\u003c\/strong\u003e\u003cbr data-start=\"2190\" data-end=\"2193\"\u003eA: If your outer-engine run is extremely long and shorter extensions still leave you short or pulled tight, this is the right length.\u003c\/p\u003e\n\u003cp data-start=\"2328\" data-end=\"2401\"\u003e\u003cstrong data-start=\"2328\" data-end=\"2353\"\u003eQ2: Any setup needed?\u003c\/strong\u003e\u003cbr data-start=\"2353\" data-end=\"2356\"\u003eA: Nope—just plug it in and route it cleanly.\u003c\/p\u003e\n\u003cp data-start=\"2403\" data-end=\"2509\"\u003e\u003cstrong data-start=\"2403\" data-end=\"2436\"\u003eQ3: Is it good for saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2436\" data-end=\"2439\"\u003eA: Yes. A quick rinse now and then keeps the connectors in good shape.\u003c\/p\u003e\n\u003cp data-start=\"2511\" data-end=\"2611\"\u003e\u003cstrong data-start=\"2511\" data-end=\"2541\"\u003eQ4: Any installation tips?\u003c\/strong\u003e\u003cbr data-start=\"2541\" data-end=\"2544\"\u003eA: Use wide, gentle curves and avoid rubbing points along the hull.\u003c\/p\u003e\n\u003cp data-start=\"2613\" data-end=\"2738\"\u003e\u003cstrong data-start=\"2613\" data-end=\"2650\"\u003eQ5: What are early signs of wear?\u003c\/strong\u003e\u003cbr data-start=\"2650\" data-end=\"2653\"\u003eA: Sluggish controls, intermittent signals, or visible jacket scuffing along the run.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935983751459,"sku":"84-8M0173573","price":647.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV803045.jpg?v=1720534805","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-harn-outer-70-84-8m0173573","provider":"PartsVu","version":"1.0","type":"link"}