{"product_id":"mercury-mp-alert-oval-light-y-harness-fits-smartcraft-compatible-engines-8m0109505","title":"Mercury – MP Alert Add-A-Light Kit (Oval) | Expansion Light \u0026 Y-Harness | 8M0109505","description":"\u003cp data-start=\"0\" data-end=\"87\"\u003e\u003cstrong data-start=\"0\" data-end=\"87\"\u003eMercury – MP Alert Add-A-Light Kit (Oval) | Expansion Light \u0026amp; Y-Harness | 8M0109505\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"89\" data-end=\"92\"\u003e\n\u003cp data-start=\"94\" data-end=\"106\"\u003e\u003cstrong data-start=\"94\" data-end=\"106\"\u003eOverview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"108\" data-end=\"592\"\u003eIf you’re running the Mercury Moving Prop (MP Alert) system and want even better visibility around the transom, this kit makes it easy to expand. The Mercury 8M0109505 MP Alert Add-A-Light Kit lets you add an extra oval smart light—ideal for boats with wide swim platforms, stepped transoms, or layouts where two lights aren’t enough. With the included Y-harness, the new light plugs right into the existing system for quick installation and seamless SmartCraft-controlled activation.\u003c\/p\u003e\n\u003chr data-start=\"594\" data-end=\"597\"\u003e\n\u003cp data-start=\"599\" data-end=\"615\"\u003e\u003cstrong data-start=\"599\" data-end=\"615\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"619\" data-end=\"706\"\u003e\n\u003cstrong data-start=\"619\" data-end=\"643\"\u003eAdd-On Smart Light –\u003c\/strong\u003e Includes one oval MP Alert smart light with six bright LEDs.\u003c\/li\u003e\n\u003cli data-start=\"709\" data-end=\"807\"\u003e\n\u003cstrong data-start=\"709\" data-end=\"740\"\u003ePlug-In Expansion Harness –\u003c\/strong\u003e Supplied Y-harness makes it easy to add a third or fourth light.\u003c\/li\u003e\n\u003cli data-start=\"810\" data-end=\"927\"\u003e\n\u003cstrong data-start=\"810\" data-end=\"843\"\u003eSmartCraft-Linked Operation –\u003c\/strong\u003e New light activates automatically when the MP Alert system detects prop movement.\u003c\/li\u003e\n\u003cli data-start=\"930\" data-end=\"1031\"\u003e\n\u003cstrong data-start=\"930\" data-end=\"960\"\u003eEnhanced Safety Coverage –\u003c\/strong\u003e Improves visibility for swimmers, divers, and riders near the stern.\u003c\/li\u003e\n\u003cli data-start=\"1034\" data-end=\"1134\"\u003e\n\u003cstrong data-start=\"1034\" data-end=\"1055\"\u003eOEM-Grade Build –\u003c\/strong\u003e Weather-sealed light with durable connectors designed for marine conditions.\u003c\/li\u003e\n\u003cli data-start=\"1137\" data-end=\"1229\"\u003e\n\u003cstrong data-start=\"1137\" data-end=\"1161\"\u003eClean Upgrade Path –\u003c\/strong\u003e Works as an extension to existing MP Alert kits without rewiring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1231\" data-end=\"1234\"\u003e\n\u003cp data-start=\"1236\" data-end=\"1253\"\u003e\u003cstrong data-start=\"1236\" data-end=\"1253\"\u003eCompatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"1257\" data-end=\"1296\"\u003eAll \u003cstrong data-start=\"1261\" data-end=\"1294\"\u003eSmartCraft-compatible engines\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1299\" data-end=\"1337\"\u003eMP Alert systems (oval-style lights)\u003c\/li\u003e\n\u003cli data-start=\"1340\" data-end=\"1388\"\u003e8M0109507 and other Mercury MP Alert base kits\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1390\" data-end=\"1393\"\u003e\n\u003cp data-start=\"1395\" data-end=\"1431\"\u003e\u003cstrong data-start=\"1395\" data-end=\"1431\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1433\" data-end=\"1869\"\u003eAdding another smart light increases your boat’s safety zone by making prop-movement warnings visible from more angles. This is especially helpful on boats with broader transoms or swim platforms where swimmers may approach from the sides. The Y-harness keeps installation simple—just plug in, mount the new light, and the system immediately recognizes and activates it whenever the prop is turning. No switches or programming required.\u003c\/p\u003e\n\u003chr data-start=\"1871\" data-end=\"1874\"\u003e\n\u003cp data-start=\"1876\" data-end=\"1891\"\u003e\u003cstrong data-start=\"1876\" data-end=\"1891\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"1893\" data-end=\"2299\"\u003eMercury’s MP Alert system depends on precise SmartCraft communication. OEM smart lights use the correct signaling, LED brightness, waterproof housings, and timing logic to match your existing alert system. Off-brand lights or improvised wiring can cause weak illumination, delayed activation, or system faults. The factory expansion kit ensures the added light works exactly the way Mercury designed it to.\u003c\/p\u003e\n\u003chr data-start=\"2301\" data-end=\"2304\"\u003e\n\u003cp data-start=\"2306\" data-end=\"2313\"\u003e\u003cstrong data-start=\"2306\" data-end=\"2313\"\u003eFAQ\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"2315\" data-end=\"2453\"\u003e\u003cstrong data-start=\"2315\" data-end=\"2360\"\u003eQ1: How many additional lights can I add?\u003c\/strong\u003e\u003cbr data-start=\"2360\" data-end=\"2363\"\u003eThis kit allows you to add a \u003cstrong data-start=\"2392\" data-end=\"2401\"\u003ethird\u003c\/strong\u003e or \u003cstrong data-start=\"2405\" data-end=\"2415\"\u003efourth\u003c\/strong\u003e light to an existing MP Alert system.\u003c\/p\u003e\n\u003cp data-start=\"2455\" data-end=\"2549\"\u003e\u003cstrong data-start=\"2455\" data-end=\"2494\"\u003eQ2: Does the kit include the light?\u003c\/strong\u003e\u003cbr data-start=\"2494\" data-end=\"2497\"\u003eYes—one oval smart light and the required Y-harness.\u003c\/p\u003e\n\u003cp data-start=\"2551\" data-end=\"2688\"\u003e\u003cstrong data-start=\"2551\" data-end=\"2601\"\u003eQ3: Will the new light activate automatically?\u003c\/strong\u003e\u003cbr data-start=\"2601\" data-end=\"2604\"\u003eYes. It flashes whenever the prop is moving, just like the original MP Alert lights.\u003c\/p\u003e\n\u003cp data-start=\"2690\" data-end=\"2821\"\u003e\u003cstrong data-start=\"2690\" data-end=\"2743\"\u003eQ4: Is it compatible with non-SmartCraft engines?\u003c\/strong\u003e\u003cbr data-start=\"2743\" data-end=\"2746\"\u003eNo. This add-on kit is for \u003cstrong data-start=\"2773\" data-end=\"2798\"\u003eSmartCraft-compatible\u003c\/strong\u003e MP Alert systems only.\u003c\/p\u003e\n\u003cp data-start=\"2823\" data-end=\"2931\"\u003e\u003cstrong data-start=\"2823\" data-end=\"2857\"\u003eQ5: Is installation difficult?\u003c\/strong\u003e\u003cbr data-start=\"2857\" data-end=\"2860\"\u003eNo. Plug in the Y-harness, mount the light, connect it—and you’re done.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935268917539,"sku":"8M0109505","price":108.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0109505.jpg?v=1698792705","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-mp-alert-oval-light-y-harness-fits-smartcraft-compatible-engines-8m0109505","provider":"PartsVu","version":"1.0","type":"link"}