{"product_id":"mercury-harn-ext-inner-20-84-8m0159759","title":"Mercury – Inner Helm Extension Harness | 20-Foot Extension | 84-8M0159759","description":"\u003cp data-start=\"0\" data-end=\"77\"\u003e\u003cstrong data-start=\"0\" data-end=\"77\"\u003eMercury – Inner Helm Extension Harness | 20-Foot Extension | 84-8M0159759\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"79\" data-end=\"82\"\u003e\n\u003cp data-start=\"84\" data-end=\"545\"\u003e\u003cstrong data-start=\"84\" data-end=\"96\"\u003eOverview\u003c\/strong\u003e\u003cbr data-start=\"96\" data-end=\"99\"\u003eThis 20-foot inner-engine extension harness gives you extra reach for the inside engines on triple- and quad-engine boats. When the standard harness won’t quite make the run—or the routing path ducks around bulkheads—this length keeps you from stretching the wiring or forcing tight bends. It lets the harness run in a smoother line so the controls feel steady. On larger multi-engine rigs, that extra room makes rigging and service a lot easier.\u003c\/p\u003e\n\u003chr data-start=\"547\" data-end=\"550\"\u003e\n\u003cp data-start=\"552\" data-end=\"1067\"\u003e\u003cstrong data-start=\"552\" data-end=\"568\"\u003eKey Features\u003c\/strong\u003e\u003cbr data-start=\"568\" data-end=\"571\"\u003e    • \u003cstrong data-start=\"597\" data-end=\"618\"\u003e20-Foot Extension\u003c\/strong\u003e – Adds enough slack for longer inner-engine routing.\u003cbr data-start=\"671\" data-end=\"674\"\u003e    • \u003cstrong data-start=\"700\" data-end=\"720\"\u003eInner-Engine Use\u003c\/strong\u003e – Made for the inner engines on triple and quad DTS setups.\u003cbr data-start=\"780\" data-end=\"783\"\u003e    • \u003cstrong data-start=\"809\" data-end=\"827\"\u003eOEM Connectors\u003c\/strong\u003e – Factory ends that snap in tight and stay locked.\u003cbr data-start=\"878\" data-end=\"881\"\u003e    • \u003cstrong data-start=\"907\" data-end=\"925\"\u003eEasier Routing\u003c\/strong\u003e – Helps avoid pinched spots and sharp corners.\u003cbr data-start=\"972\" data-end=\"975\"\u003e    • \u003cstrong data-start=\"1001\" data-end=\"1023\"\u003eSteady Signal Path\u003c\/strong\u003e – Keeps throttle and shift response smooth.\u003c\/p\u003e\n\u003chr data-start=\"1069\" data-end=\"1072\"\u003e\n\u003cp data-start=\"1074\" data-end=\"1242\"\u003e\u003cstrong data-start=\"1074\" data-end=\"1105\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003cbr data-start=\"1105\" data-end=\"1108\"\u003e    • Triple engine\u003cbr data-start=\"1147\" data-end=\"1150\"\u003e    • Quad engine\u003cbr data-start=\"1187\" data-end=\"1190\"\u003e    • Inner-engine helm pathways\u003c\/p\u003e\n\u003chr data-start=\"1244\" data-end=\"1247\"\u003e\n\u003cp data-start=\"1249\" data-end=\"1656\"\u003e\u003cstrong data-start=\"1249\" data-end=\"1285\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003cbr data-start=\"1285\" data-end=\"1288\"\u003eThe extra length keeps the harness from getting jammed into tight corners, which helps the controls feel more natural. It also makes the rigging bay easier to work in, giving you more space to move during service. On bigger boats, a little added slack helps the whole system feel calmer and less cramped. You end up with cleaner wiring and fewer small issues later on.\u003c\/p\u003e\n\u003chr data-start=\"1658\" data-end=\"1661\"\u003e\n\u003cp data-start=\"1663\" data-end=\"1916\"\u003e\u003cstrong data-start=\"1663\" data-end=\"1678\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003cbr data-start=\"1678\" data-end=\"1681\"\u003eOEM harnesses hold up well to vibration, heat, and saltwater, and the connectors match Mercury’s design exactly. That means fewer loose plugs and fewer weird glitches down the road. It’s reliable wiring built for real-world marine use.\u003c\/p\u003e\n\u003chr data-start=\"1918\" data-end=\"1921\"\u003e\n\u003cp data-start=\"1923\" data-end=\"2113\"\u003e\u003cstrong data-start=\"1923\" data-end=\"1930\"\u003eFAQ\u003c\/strong\u003e\u003cbr data-start=\"1930\" data-end=\"1933\"\u003e\u003cstrong data-start=\"1933\" data-end=\"1982\"\u003eQ1: How do I know I need the 20-foot version?\u003c\/strong\u003e\u003cbr data-start=\"1982\" data-end=\"1985\"\u003eA: If your inner-engine harness is tight or won’t reach cleanly on a wide or complex rigging path, this length usually fixes it.\u003c\/p\u003e\n\u003cp data-start=\"2115\" data-end=\"2175\"\u003e\u003cstrong data-start=\"2115\" data-end=\"2140\"\u003eQ2: Any setup needed?\u003c\/strong\u003e\u003cbr data-start=\"2140\" data-end=\"2143\"\u003eA: Nope—plug it in and route it.\u003c\/p\u003e\n\u003cp data-start=\"2177\" data-end=\"2278\"\u003e\u003cstrong data-start=\"2177\" data-end=\"2200\"\u003eQ3: Saltwater safe?\u003c\/strong\u003e\u003cbr data-start=\"2200\" data-end=\"2203\"\u003eA: Yes. A quick rinse and occasional connector check keep it in good shape.\u003c\/p\u003e\n\u003cp data-start=\"2280\" data-end=\"2377\"\u003e\u003cstrong data-start=\"2280\" data-end=\"2310\"\u003eQ4: Any installation tips?\u003c\/strong\u003e\u003cbr data-start=\"2310\" data-end=\"2313\"\u003eA: Use smooth, gentle curves so the harness isn’t under tension.\u003c\/p\u003e\n\u003cp data-start=\"2379\" data-end=\"2493\"\u003e\u003cstrong data-start=\"2379\" data-end=\"2410\"\u003eQ5: What are signs of wear?\u003c\/strong\u003e\u003cbr data-start=\"2410\" data-end=\"2413\"\u003eA: Hesitant controls, intermittent signals, or jacket rubbing along tight spots.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935986307363,"sku":"84-8M0159759","price":157.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV781168.jpg?v=1720534666","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-harn-ext-inner-20-84-8m0159759","provider":"PartsVu","version":"1.0","type":"link"}