{"product_id":"mercury-quicksilver-drain-plug-fits-mercruiser-cylinder-blocks-and-exhaust-manifolds-22-16951q1","title":"Mercury – Quicksilver Brass Drain Plug | Cooling System Component | Machined Brass | 16951Q1","description":"\u003cp data-start=\"0\" data-end=\"98\"\u003e\u003cstrong data-start=\"0\" data-end=\"96\"\u003eMercury – Quicksilver Brass Drain Plug | Cooling System Component | Machined Brass | 16951Q1\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"100\" data-end=\"103\"\u003e\n\u003ch3 data-start=\"105\" data-end=\"123\"\u003e\u003cstrong data-start=\"109\" data-end=\"121\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"124\" data-end=\"660\"\u003eWhen it’s time to winterize or service your engine, a dependable drain plug makes the job easy. The \u003cstrong data-start=\"224\" data-end=\"279\"\u003eMercury Marine 16951Q1 Quicksilver Brass Drain Plug\u003c\/strong\u003e is built for that task — tough, reliable, and simple to install. Designed for \u003cstrong data-start=\"358\" data-end=\"403\"\u003eMerCruiser sterndrive and inboard engines\u003c\/strong\u003e, it fits most blocks and manifolds with a standard \u003cstrong data-start=\"455\" data-end=\"476\"\u003e¼-inch NPT thread\u003c\/strong\u003e. Whether you’re draining coolant, flushing the system, or prepping for storage, this plug gives you a tight seal and the confidence that your engine’s protected from the inside out.\u003c\/p\u003e\n\u003chr data-start=\"662\" data-end=\"665\"\u003e\n\u003ch3 data-start=\"667\" data-end=\"689\"\u003e\u003cstrong data-start=\"671\" data-end=\"687\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"692\" data-end=\"825\"\u003e\n\u003cstrong data-start=\"692\" data-end=\"704\"\u003ePurpose:\u003c\/strong\u003e Replaces worn or damaged drain plugs for engine blocks and manifolds, making draining and winterizing quick and clean.\u003c\/li\u003e\n\u003cli data-start=\"828\" data-end=\"929\"\u003e\n\u003cstrong data-start=\"828\" data-end=\"841\"\u003eMaterial:\u003c\/strong\u003e Made from \u003cstrong data-start=\"852\" data-end=\"876\"\u003esolid machined brass\u003c\/strong\u003e for long-term durability and corrosion resistance.\u003c\/li\u003e\n\u003cli data-start=\"932\" data-end=\"1020\"\u003e\n\u003cstrong data-start=\"932\" data-end=\"944\"\u003eFitment:\u003c\/strong\u003e Standard \u003cstrong data-start=\"954\" data-end=\"975\"\u003e¼-inch NPT thread\u003c\/strong\u003e fits most MerCruiser blocks and manifolds.\u003c\/li\u003e\n\u003cli data-start=\"1023\" data-end=\"1107\"\u003e\n\u003cstrong data-start=\"1023\" data-end=\"1041\"\u003eDesign Detail:\u003c\/strong\u003e Precision-cut threads ensure a snug, leak-free seal every time.\u003c\/li\u003e\n\u003cli data-start=\"1110\" data-end=\"1203\"\u003e\n\u003cstrong data-start=\"1110\" data-end=\"1126\"\u003ePerformance:\u003c\/strong\u003e Suitable for both \u003cstrong data-start=\"1145\" data-end=\"1200\"\u003eclosed cooling systems and raw-water-cooled engines\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1206\" data-end=\"1294\"\u003e\n\u003cstrong data-start=\"1206\" data-end=\"1222\"\u003eEase of Use:\u003c\/strong\u003e Installs easily with basic hand tools — no special fittings required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1296\" data-end=\"1299\"\u003e\n\u003ch3 data-start=\"1301\" data-end=\"1338\"\u003e\u003cstrong data-start=\"1305\" data-end=\"1336\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1341\" data-end=\"1453\"\u003eFits \u003cstrong data-start=\"1346\" data-end=\"1397\"\u003emost MerCruiser sterndrives and inboard engines\u003c\/strong\u003e, including both raw-water and closed cooling systems.\u003c\/li\u003e\n\u003cli data-start=\"1456\" data-end=\"1540\"\u003eCompatible with \u003cstrong data-start=\"1472\" data-end=\"1503\"\u003emanifolds and engine blocks\u003c\/strong\u003e across multiple MerCruiser models.\u003c\/li\u003e\n\u003cli data-start=\"1543\" data-end=\"1634\"\u003eMay also fit other brands of \u003cstrong data-start=\"1572\" data-end=\"1605\"\u003einboard or sterndrive engines\u003c\/strong\u003e using ¼-inch NPT fittings.\u003c\/li\u003e\n\u003cli data-start=\"1637\" data-end=\"1721\"\u003eCommonly used on \u003cstrong data-start=\"1654\" data-end=\"1718\"\u003ecruisers, runabouts, performance boats, and tow sport setups\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1723\" data-end=\"1726\"\u003e\n\u003ch3 data-start=\"1728\" data-end=\"1770\"\u003e\u003cstrong data-start=\"1732\" data-end=\"1768\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1771\" data-end=\"2104\"\u003eThe \u003cstrong data-start=\"1775\" data-end=\"1797\"\u003e16951Q1 drain plug\u003c\/strong\u003e provides a secure seal while allowing quick access for maintenance and winterization. The machined brass construction resists corrosion, even in saltwater, and won’t seize or strip like softer materials. Its tight threads prevent leaks during operation and make it easy to remove when it’s time to drain.\u003c\/p\u003e\n\u003cp data-start=\"2106\" data-end=\"2347\"\u003eReplacing worn plugs helps you avoid costly freeze damage and keeps the cooling system performing efficiently. Once installed, this plug sits flush and clean — one of those small details that makes seasonal maintenance smoother and faster.\u003c\/p\u003e\n\u003chr data-start=\"2349\" data-end=\"2352\"\u003e\n\u003ch3 data-start=\"2354\" data-end=\"2375\"\u003e\u003cstrong data-start=\"2358\" data-end=\"2373\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2376\" data-end=\"2697\"\u003eAftermarket plugs may fit loosely, corrode quickly, or fail to hold a proper seal. The \u003cstrong data-start=\"2463\" data-end=\"2486\"\u003eQuicksilver 16951Q1\u003c\/strong\u003e is a \u003cstrong data-start=\"2492\" data-end=\"2523\"\u003egenuine Mercury Marine part\u003c\/strong\u003e, machined to the same precision standards used in Mercury’s factory builds. It’s designed to handle marine conditions — salt, pressure, and vibration — without compromise.\u003c\/p\u003e\n\u003cp data-start=\"2699\" data-end=\"2948\"\u003eWith OEM quality, you get perfect threading, proper material hardness, and a reliable seal every time. It’s an inexpensive part that protects an expensive engine, giving you peace of mind every time you prep your boat for storage or hit the water.\u003c\/p\u003e\n\u003chr data-start=\"2950\" data-end=\"2953\"\u003e\n\u003ch3 data-start=\"2955\" data-end=\"2968\"\u003e\u003cstrong data-start=\"2959\" data-end=\"2966\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2970\" data-end=\"3118\"\u003e\u003cstrong data-start=\"2970\" data-end=\"3017\"\u003eQ1: Which engines does this drain plug fit?\u003c\/strong\u003e\u003cbr data-start=\"3017\" data-end=\"3020\"\u003eIt fits \u003cstrong data-start=\"3028\" data-end=\"3072\"\u003emost MerCruiser sterndrives and inboards\u003c\/strong\u003e with ¼-inch NPT block or manifold fittings.\u003c\/p\u003e\n\u003cp data-start=\"3120\" data-end=\"3247\"\u003e\u003cstrong data-start=\"3120\" data-end=\"3146\"\u003eQ2: What’s it made of?\u003c\/strong\u003e\u003cbr data-start=\"3146\" data-end=\"3149\"\u003eIt’s made from \u003cstrong data-start=\"3164\" data-end=\"3182\"\u003emachined brass\u003c\/strong\u003e, which resists corrosion and threads cleanly for years of use.\u003c\/p\u003e\n\u003cp data-start=\"3249\" data-end=\"3368\"\u003e\u003cstrong data-start=\"3249\" data-end=\"3317\"\u003eQ3: Can it be used on both raw water and closed cooling systems?\u003c\/strong\u003e\u003cbr data-start=\"3317\" data-end=\"3320\"\u003eYes — it’s designed for both types of systems.\u003c\/p\u003e\n\u003cp data-start=\"3370\" data-end=\"3485\"\u003e\u003cstrong data-start=\"3370\" data-end=\"3398\"\u003eQ4: How do I install it?\u003c\/strong\u003e\u003cbr data-start=\"3398\" data-end=\"3401\"\u003eSimply thread it into the drain port with a wrench; no special tools are required.\u003c\/p\u003e\n\u003cp data-start=\"3487\" data-end=\"3634\"\u003e\u003cstrong data-start=\"3487\" data-end=\"3521\"\u003eQ5: Does it work in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3521\" data-end=\"3524\"\u003eYes. The brass construction stands up to salt, moisture, and temperature changes without seizing or pitting.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626552975651,"sku":"22-16951Q1","price":27.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/16951q1_main.jpg?v=1760631160","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-quicksilver-drain-plug-fits-mercruiser-cylinder-blocks-and-exhaust-manifolds-22-16951q1","provider":"PartsVu","version":"1.0","type":"link"}