{"product_id":"mercury-harn-ext-outer-15-84-8m0159751","title":"Mercury – Outer Helm Extension Harness | 15-Foot Extension | 84-8M0159751","description":"\u003cp data-start=\"0\" data-end=\"77\"\u003e\u003cstrong data-start=\"0\" data-end=\"77\"\u003eMercury – Outer Helm Extension Harness | 15-Foot Extension | 84-8M0159751\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"79\" data-end=\"82\"\u003e\n\u003cp data-start=\"84\" data-end=\"550\"\u003e\u003cstrong data-start=\"84\" data-end=\"96\"\u003eOverview\u003c\/strong\u003e\u003cbr data-start=\"96\" data-end=\"99\"\u003eThis 15-foot extension harness gives the outer engines on triple- and quad-engine boats the extra reach they usually need. Long runs and wide transoms can make the factory harness feel tight, and this extension keeps you from forcing sharp bends or stretching the wiring. It lets the harness take a smoother, more relaxed path from the helm to the outer engines. It’s a simple add-on that makes big multi-engine layouts much easier to rig and service.\u003c\/p\u003e\n\u003chr data-start=\"552\" data-end=\"555\"\u003e\n\u003cp data-start=\"557\" data-end=\"1116\"\u003e\u003cstrong data-start=\"557\" data-end=\"573\"\u003eKey Features\u003c\/strong\u003e\u003cbr data-start=\"573\" data-end=\"576\"\u003e    • \u003cstrong data-start=\"602\" data-end=\"623\"\u003e15-Foot Extension\u003c\/strong\u003e – Adds generous length for wide transoms and long routing paths.\u003cbr data-start=\"688\" data-end=\"691\"\u003e    • \u003cstrong data-start=\"717\" data-end=\"737\"\u003eOuter Engine Use\u003c\/strong\u003e – Designed for the outside engines in triple and quad setups.\u003cbr data-start=\"799\" data-end=\"802\"\u003e    • \u003cstrong data-start=\"828\" data-end=\"846\"\u003eOEM Connectors\u003c\/strong\u003e – Factory plugs that snap in securely and stay locked.\u003cbr data-start=\"901\" data-end=\"904\"\u003e    • \u003cstrong data-start=\"930\" data-end=\"950\"\u003eFlexible Routing\u003c\/strong\u003e – Helps avoid tight corners, pinched sections, and pulled wiring.\u003cbr data-start=\"1016\" data-end=\"1019\"\u003e    • \u003cstrong data-start=\"1045\" data-end=\"1067\"\u003eStable Signal Path\u003c\/strong\u003e – Keeps throttle and shift communication steady.\u003c\/p\u003e\n\u003chr data-start=\"1118\" data-end=\"1121\"\u003e\n\u003cp data-start=\"1123\" data-end=\"1291\"\u003e\u003cstrong data-start=\"1123\" data-end=\"1154\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003cbr data-start=\"1154\" data-end=\"1157\"\u003e    • Triple engine\u003cbr data-start=\"1196\" data-end=\"1199\"\u003e    • Quad engine\u003cbr data-start=\"1236\" data-end=\"1239\"\u003e    • Outer-engine helm pathways\u003c\/p\u003e\n\u003chr data-start=\"1293\" data-end=\"1296\"\u003e\n\u003cp data-start=\"1298\" data-end=\"1740\"\u003e\u003cstrong data-start=\"1298\" data-end=\"1334\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003cbr data-start=\"1334\" data-end=\"1337\"\u003eWith more length to work with, the wiring can follow a natural path around the boat instead of squeezing through tight areas. That usually gives the controls a smoother, more predictable feel because the harness isn’t kinked or under strain. It also keeps the rigging bay more open and easier to navigate when you’re doing service work. For wide-beam boats, the extra room makes a noticeable difference.\u003c\/p\u003e\n\u003chr data-start=\"1742\" data-end=\"1745\"\u003e\n\u003cp data-start=\"1747\" data-end=\"1994\"\u003e\u003cstrong data-start=\"1747\" data-end=\"1762\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003cbr data-start=\"1762\" data-end=\"1765\"\u003eOEM wiring holds up to vibration, heat, and salt spray better than off-brand extensions. The connectors match Mercury’s design exactly, so you avoid loose plugs and random glitches. It’s wiring you can count on for the long haul.\u003c\/p\u003e\n\u003chr data-start=\"1996\" data-end=\"1999\"\u003e\n\u003cp data-start=\"2001\" data-end=\"2186\"\u003e\u003cstrong data-start=\"2001\" data-end=\"2008\"\u003eFAQ\u003c\/strong\u003e\u003cbr data-start=\"2008\" data-end=\"2011\"\u003e\u003cstrong data-start=\"2011\" data-end=\"2055\"\u003eQ1: How do I know I need this extension?\u003c\/strong\u003e\u003cbr data-start=\"2055\" data-end=\"2058\"\u003eA: If the outer engines on your triple or quad setup feel tight to route, this 15-foot extension usually solves the reach issue.\u003c\/p\u003e\n\u003cp data-start=\"2188\" data-end=\"2293\"\u003e\u003cstrong data-start=\"2188\" data-end=\"2233\"\u003eQ2: Does it require calibration or setup?\u003c\/strong\u003e\u003cbr data-start=\"2233\" data-end=\"2236\"\u003eA: No—just plug it in and it extends the harness cleanly.\u003c\/p\u003e\n\u003cp data-start=\"2295\" data-end=\"2396\"\u003e\u003cstrong data-start=\"2295\" data-end=\"2332\"\u003eQ3: How does it handle saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2332\" data-end=\"2335\"\u003eA: Fine—rinse occasionally and keep an eye on the connectors.\u003c\/p\u003e\n\u003cp data-start=\"2398\" data-end=\"2509\"\u003e\u003cstrong data-start=\"2398\" data-end=\"2428\"\u003eQ4: Any installation tips?\u003c\/strong\u003e\u003cbr data-start=\"2428\" data-end=\"2431\"\u003eA: Give it a relaxed path with smooth bends so the harness isn’t pulled tight.\u003c\/p\u003e\n\u003cp data-start=\"2511\" data-end=\"2645\"\u003e\u003cstrong data-start=\"2511\" data-end=\"2556\"\u003eQ5: What are signs it may be wearing out?\u003c\/strong\u003e\u003cbr data-start=\"2556\" data-end=\"2559\"\u003eA: Hesitant controls, intermittent signals, or spots where the jacket is rubbing thin.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935987061027,"sku":"84-8M0159751","price":195.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV781364.jpg?v=1720534677","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-harn-ext-outer-15-84-8m0159751","provider":"PartsVu","version":"1.0","type":"link"}