{"product_id":"mercury-harness-ext-27ft-84-8m0150478","title":"Mercury – Extension Harness (27 ft) | DTS Analog Gauge Link | 84-8M0150478","description":"\u003cp data-start=\"0\" data-end=\"78\"\u003e\u003cstrong data-start=\"0\" data-end=\"78\"\u003eMercury – Extension Harness (27 ft) | DTS Analog Gauge Link | 84-8M0150478\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"80\" data-end=\"83\"\u003e\n\u003cp data-start=\"85\" data-end=\"554\"\u003e\u003cstrong data-start=\"85\" data-end=\"97\"\u003eOverview\u003c\/strong\u003e\u003cbr data-start=\"97\" data-end=\"100\"\u003eThis harness gives you a short 2-foot analog gauge lead and a 25-foot 4-pin DTS extension, making it easy to rig boats with consoles set far forward. It plugs straight into the engine’s 4-pin connection and carries trim, coolant temp, oil pressure, and tach signals cleanly to the dash. On the water, the gauges stay steady because the signal isn’t fighting old wiring or stretched runs. Simple hookup, long reach, and built specifically for DTS engines.\u003c\/p\u003e\n\u003chr data-start=\"556\" data-end=\"559\"\u003e\n\u003cp data-start=\"561\" data-end=\"1062\"\u003e\u003cstrong data-start=\"561\" data-end=\"577\"\u003eKey Features\u003c\/strong\u003e\u003cbr data-start=\"577\" data-end=\"580\"\u003e    • \u003cstrong data-start=\"606\" data-end=\"628\"\u003e27 ft Total Length\u003c\/strong\u003e – 2 ft gauge lead paired with a 25 ft DTS extension.\u003cbr data-start=\"681\" data-end=\"684\"\u003e    • \u003cstrong data-start=\"710\" data-end=\"731\"\u003e4-Pin Engine Plug\u003c\/strong\u003e – Direct connection to the DTS harness.\u003cbr data-start=\"771\" data-end=\"774\"\u003e    • \u003cstrong data-start=\"800\" data-end=\"818\"\u003eAnalog Outputs\u003c\/strong\u003e – Trim, coolant temp, oil PSI, and tach.\u003cbr data-start=\"859\" data-end=\"862\"\u003e    • \u003cstrong data-start=\"888\" data-end=\"908\"\u003eLong-Run Routing\u003c\/strong\u003e – Ideal for larger boats or console-forward layouts.\u003cbr data-start=\"961\" data-end=\"964\"\u003e    • \u003cstrong data-start=\"990\" data-end=\"1009\"\u003eOEM Wire Colors\u003c\/strong\u003e – Matches Mercury’s pinout for trouble-free rigging.\u003c\/p\u003e\n\u003chr data-start=\"1064\" data-end=\"1067\"\u003e\n\u003cp data-start=\"1069\" data-end=\"1274\"\u003e\u003cstrong data-start=\"1069\" data-end=\"1100\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003cbr data-start=\"1100\" data-end=\"1103\"\u003e    • DTS outboards\u003cbr data-start=\"1142\" data-end=\"1145\"\u003e    • DTS V6 \/ V8 outboards\u003cbr data-start=\"1192\" data-end=\"1195\"\u003e    • DTS MCM 4.5L\u003cbr data-start=\"1233\" data-end=\"1236\"\u003e    • DTS MCM 6.2L\u003c\/p\u003e\n\u003chr data-start=\"1276\" data-end=\"1279\"\u003e\n\u003cp data-start=\"1281\" data-end=\"1656\"\u003e\u003cstrong data-start=\"1281\" data-end=\"1317\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003cbr data-start=\"1317\" data-end=\"1320\"\u003eThe longer extension makes routing smoother on boats where the console sits a long way from the engine. Once installed, the gauges get a clean signal, which helps them read smoothly instead of jumping around or dropping out. It’s a quick fix when you need more reach or when replacing older harnesses that have gone stiff or unreliable.\u003c\/p\u003e\n\u003chr data-start=\"1658\" data-end=\"1661\"\u003e\n\u003cp data-start=\"1663\" data-end=\"1917\"\u003e\u003cstrong data-start=\"1663\" data-end=\"1678\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003cbr data-start=\"1678\" data-end=\"1681\"\u003eOEM DTS harnesses hold tight, follow Mercury’s wiring exactly, and handle vibration, heat, and spray better than off-brand replacements. With OEM wiring, the gauges behave the way they’re supposed to—no strange dropouts or signal noise.\u003c\/p\u003e\n\u003chr data-start=\"1919\" data-end=\"1922\"\u003e\n\u003cp data-start=\"1924\" data-end=\"2093\"\u003e\u003cstrong data-start=\"1924\" data-end=\"1931\"\u003eFAQ\u003c\/strong\u003e\u003cbr data-start=\"1931\" data-end=\"1934\"\u003e\u003cstrong data-start=\"1934\" data-end=\"1981\"\u003e1. How do I know this is the right harness?\u003c\/strong\u003e\u003cbr data-start=\"1981\" data-end=\"1984\"\u003eIf your DTS engine uses a 4-pin analog output and you need a long run to the dash, this is the right setup.\u003c\/p\u003e\n\u003cp data-start=\"2095\" data-end=\"2192\"\u003e\u003cstrong data-start=\"2095\" data-end=\"2135\"\u003e2. Does it work with digital gauges?\u003c\/strong\u003e\u003cbr data-start=\"2135\" data-end=\"2138\"\u003eNo—this is for analog trim, tach, temp, and oil PSI.\u003c\/p\u003e\n\u003cp data-start=\"2194\" data-end=\"2283\"\u003e\u003cstrong data-start=\"2194\" data-end=\"2225\"\u003e3. Can I coil extra length?\u003c\/strong\u003e\u003cbr data-start=\"2225\" data-end=\"2228\"\u003eYes—just avoid tight bends that could kink the cable.\u003c\/p\u003e\n\u003cp data-start=\"2285\" data-end=\"2394\"\u003e\u003cstrong data-start=\"2285\" data-end=\"2318\"\u003e4. Is installation difficult?\u003c\/strong\u003e\u003cbr data-start=\"2318\" data-end=\"2321\"\u003eNo—plug in at the engine, route the extension, and connect your gauges.\u003c\/p\u003e\n\u003cp data-start=\"2396\" data-end=\"2525\"\u003e\u003cstrong data-start=\"2396\" data-end=\"2445\"\u003e5. What are signs the old harness is failing?\u003c\/strong\u003e\u003cbr data-start=\"2445\" data-end=\"2448\"\u003eFlickering needles, slow response, or gauges that only work part of the time.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935993450787,"sku":"84-8M0150478","price":50.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/PV725972.jpg?v=1720534544","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-harness-ext-27ft-84-8m0150478","provider":"PartsVu","version":"1.0","type":"link"}