{"product_id":"mercury-harness-assy-84-898059t20","title":"Mercury – Tab Extension Harness Assembly | 20-Foot Trim Tab Lead | 84-898059T20","description":"\u003cp data-start=\"0\" data-end=\"83\"\u003e\u003cstrong data-start=\"0\" data-end=\"83\"\u003eMercury – Tab Extension Harness Assembly | 20-Foot Trim Tab Lead | 84-898059T20\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"85\" data-end=\"88\"\u003e\n\u003cp data-start=\"90\" data-end=\"102\"\u003e\u003cstrong data-start=\"90\" data-end=\"102\"\u003eOverview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"104\" data-end=\"541\"\u003eLonger wiring runs can make trim tab installation tricky, especially on big consoles or wide transoms. The Mercury 84-898059T20 Tab Extension Harness Assembly adds a full twenty feet of reach, giving you plenty of room to route the tab wiring cleanly from the helm to the actuators or control modules. It keeps the rigging neat, avoids overstretching the original harness, and helps the tab system operate smoothly without wiring strain.\u003c\/p\u003e\n\u003chr data-start=\"543\" data-end=\"546\"\u003e\n\u003cp data-start=\"548\" data-end=\"564\"\u003e\u003cstrong data-start=\"548\" data-end=\"564\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"568\" data-end=\"667\"\u003e\n\u003cstrong data-start=\"568\" data-end=\"591\"\u003e20-Foot Extension –\u003c\/strong\u003e Provides extended reach for trim tab wiring on larger or wide-beam boats.\u003c\/li\u003e\n\u003cli data-start=\"670\" data-end=\"757\"\u003e\n\u003cstrong data-start=\"670\" data-end=\"691\"\u003eOEM Tab Harness –\u003c\/strong\u003e Designed specifically to extend Mercury trim tab system wiring.\u003c\/li\u003e\n\u003cli data-start=\"760\" data-end=\"870\"\u003e\n\u003cstrong data-start=\"760\" data-end=\"788\"\u003eCleaner Rigging Routes –\u003c\/strong\u003e Offers flexibility for console chases, under-deck paths, and long transom runs.\u003c\/li\u003e\n\u003cli data-start=\"873\" data-end=\"964\"\u003e\n\u003cstrong data-start=\"873\" data-end=\"900\"\u003eFactory Connector Fit –\u003c\/strong\u003e Uses OEM-style ends for a tight, reliable plug-in connection.\u003c\/li\u003e\n\u003cli data-start=\"967\" data-end=\"1066\"\u003e\n\u003cstrong data-start=\"967\" data-end=\"995\"\u003eStable Signal Transfer –\u003c\/strong\u003e Maintains proper trim tab response across the full extension length.\u003c\/li\u003e\n\u003cli data-start=\"1069\" data-end=\"1168\"\u003e\n\u003cstrong data-start=\"1069\" data-end=\"1098\"\u003eMarine-Grade Durability –\u003c\/strong\u003e Handles vibration, spray, and long-term movement in rigging spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1170\" data-end=\"1173\"\u003e\n\u003cp data-start=\"1175\" data-end=\"1192\"\u003e\u003cstrong data-start=\"1175\" data-end=\"1192\"\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1196\" data-end=\"1222\"\u003eMercury trim tab systems\u003c\/li\u003e\n\u003cli data-start=\"1225\" data-end=\"1259\"\u003eLong helm-to-transom wiring runs\u003c\/li\u003e\n\u003cli data-start=\"1262\" data-end=\"1311\"\u003eBoats requiring a 20-foot tab harness extension\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1313\" data-end=\"1316\"\u003e\n\u003cp data-start=\"1318\" data-end=\"1354\"\u003e\u003cstrong data-start=\"1318\" data-end=\"1354\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1356\" data-end=\"1725\"\u003eThis harness gives you the slack needed to route trim tab wiring without forcing sharp bends or tight pulls. On larger boats, the extra length helps the wiring stay organized and protected while still delivering smooth, predictable tab movement. It’s flexible enough to run through tight rigging passages and tough enough to handle years of hull vibration and exposure.\u003c\/p\u003e\n\u003chr data-start=\"1727\" data-end=\"1730\"\u003e\n\u003cp data-start=\"1732\" data-end=\"1747\"\u003e\u003cstrong data-start=\"1732\" data-end=\"1747\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1749\" data-end=\"2062\"\u003eOEM harnessing ensures the tab system gets the correct wire gauge, shielding, and connector fit. Mercury’s extension harness prevents the signal issues and loose connections that often happen with aftermarket cable. It installs cleanly, lasts longer, and keeps the tabs responding the way they were engineered to.\u003c\/p\u003e\n\u003chr data-start=\"2064\" data-end=\"2067\"\u003e\n\u003cp data-start=\"2069\" data-end=\"2076\"\u003e\u003cstrong data-start=\"2069\" data-end=\"2076\"\u003eFAQ\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2078\" data-end=\"2226\"\u003e\u003cstrong data-start=\"2078\" data-end=\"2126\"\u003eQ1: When should I use the 20-foot extension?\u003c\/strong\u003e\u003cbr data-start=\"2126\" data-end=\"2129\"\u003eWhen the standard tab harness cannot reach the helm or control module due to boat size or layout.\u003c\/p\u003e\n\u003cp data-start=\"2228\" data-end=\"2365\"\u003e\u003cstrong data-start=\"2228\" data-end=\"2281\"\u003eQ2: Will the added length affect tab performance?\u003c\/strong\u003e\u003cbr data-start=\"2281\" data-end=\"2284\"\u003eNo. The OEM harness maintains proper signal integrity over the extended distance.\u003c\/p\u003e\n\u003cp data-start=\"2367\" data-end=\"2479\"\u003e\u003cstrong data-start=\"2367\" data-end=\"2416\"\u003eQ3: Does it install like the factory harness?\u003c\/strong\u003e\u003cbr data-start=\"2416\" data-end=\"2419\"\u003eYes. It plugs inline and routes like any standard tab cable.\u003c\/p\u003e\n\u003cp data-start=\"2481\" data-end=\"2610\"\u003e\u003cstrong data-start=\"2481\" data-end=\"2532\"\u003eQ4: Can this harness handle saltwater exposure?\u003c\/strong\u003e\u003cbr data-start=\"2532\" data-end=\"2535\"\u003eYes. The jacket and connectors are built for long-term marine environments.\u003c\/p\u003e\n\u003cp data-start=\"2612\" data-end=\"2744\"\u003e\u003cstrong data-start=\"2612\" data-end=\"2671\"\u003eQ5: Does more length help protect the original harness?\u003c\/strong\u003e\u003cbr data-start=\"2671\" data-end=\"2674\"\u003eAbsolutely—it prevents overstretching and allows more natural routing.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936024744227,"sku":"84-898059T20","price":502.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV526361.jpg?v=1698795819","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-harness-assy-84-898059t20","provider":"PartsVu","version":"1.0","type":"link"}