{"product_id":"seal-4-12-19183k02","title":"Mercury – Lower Unit Drain and Fill Hole Screw Seals | Gearcase Component | Nylon and Rubber Composite | 19183K02","description":"\u003cp data-start=\"0\" data-end=\"119\"\u003e\u003cstrong data-start=\"0\" data-end=\"117\"\u003eMercury – Lower Unit Drain and Fill Hole Screw Seals | Gearcase Component | Nylon and Rubber Composite | 19183K02\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"121\" data-end=\"124\"\u003e\n\u003ch3 data-start=\"126\" data-end=\"144\"\u003e\u003cstrong data-start=\"130\" data-end=\"142\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"145\" data-end=\"723\"\u003eWhen it’s time to change your gear lube, a good seal is what keeps the water out and the oil in. The \u003cstrong data-start=\"246\" data-end=\"326\"\u003eMercury Marine 19183K02 Lower Unit Gear Lube Drain and Fill Hole Screw Seals\u003c\/strong\u003e are simple but essential parts that protect your drive from leaks and contamination. Designed to fit \u003cstrong data-start=\"428\" data-end=\"460\"\u003e3\/8-16 drain and fill screws\u003c\/strong\u003e, these OEM gaskets ensure a perfect seal every time you service your gearcase. Sold in a pack of four, they’re built to fit all \u003cstrong data-start=\"589\" data-end=\"611\"\u003eMerCruiser engines\u003c\/strong\u003e and most \u003cstrong data-start=\"621\" data-end=\"654\"\u003eMercury and Mariner outboards\u003c\/strong\u003e, giving you dependable protection every time you drain and refill.\u003c\/p\u003e\n\u003chr data-start=\"725\" data-end=\"728\"\u003e\n\u003ch3 data-start=\"730\" data-end=\"752\"\u003e\u003cstrong data-start=\"734\" data-end=\"750\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"755\" data-end=\"833\"\u003e\n\u003cstrong data-start=\"755\" data-end=\"767\"\u003ePurpose:\u003c\/strong\u003e Provides a watertight seal for gear lube drain and fill screws.\u003c\/li\u003e\n\u003cli data-start=\"836\" data-end=\"946\"\u003e\n\u003cstrong data-start=\"836\" data-end=\"849\"\u003eMaterial:\u003c\/strong\u003e Made from \u003cstrong data-start=\"860\" data-end=\"898\"\u003edurable nylon and rubber composite\u003c\/strong\u003e for flexibility and long-lasting compression.\u003c\/li\u003e\n\u003cli data-start=\"949\" data-end=\"1042\"\u003e\n\u003cstrong data-start=\"949\" data-end=\"961\"\u003eFitment:\u003c\/strong\u003e Designed for \u003cstrong data-start=\"975\" data-end=\"1003\"\u003e3\/8-16 drain\/fill screws\u003c\/strong\u003e on Mercury and MerCruiser gearcases.\u003c\/li\u003e\n\u003cli data-start=\"1045\" data-end=\"1185\"\u003e\n\u003cstrong data-start=\"1045\" data-end=\"1063\"\u003eCompatibility:\u003c\/strong\u003e Fits \u003cstrong data-start=\"1069\" data-end=\"1095\"\u003eall MerCruiser engines\u003c\/strong\u003e and most \u003cstrong data-start=\"1105\" data-end=\"1138\"\u003eMercury and Mariner outboards\u003c\/strong\u003e, excluding Verado and Japanese-built models.\u003c\/li\u003e\n\u003cli data-start=\"1188\" data-end=\"1274\"\u003e\n\u003cstrong data-start=\"1188\" data-end=\"1201\"\u003eQuantity:\u003c\/strong\u003e Includes \u003cstrong data-start=\"1211\" data-end=\"1227\"\u003efour gaskets\u003c\/strong\u003e for multiple services or spare replacements.\u003c\/li\u003e\n\u003cli data-start=\"1277\" data-end=\"1371\"\u003e\n\u003cstrong data-start=\"1277\" data-end=\"1293\"\u003ePerformance:\u003c\/strong\u003e Prevents water intrusion and keeps gear lube from leaking during operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1373\" data-end=\"1376\"\u003e\n\u003ch3 data-start=\"1378\" data-end=\"1415\"\u003e\u003cstrong data-start=\"1382\" data-end=\"1413\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1418\" data-end=\"1469\"\u003e\n\u003cstrong\u003e\u003cspan data-start=\"1423\" data-end=\"1466\"\u003eA\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong data-start=\"1423\" data-end=\"1466\"\u003ell MerCruiser sterndrives and inboards\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1472\" data-end=\"1578\"\u003eMost \u003cstrong data-start=\"1488\" data-end=\"1521\"\u003eMercury and Mariner outboards\u003c\/strong\u003e (excluding \u003cstrong data-start=\"1533\" data-end=\"1543\"\u003eVerado\u003c\/strong\u003e and engines of Japanese origin).\u003c\/li\u003e\n\u003cli data-start=\"1581\" data-end=\"1653\"\u003eCommonly used on \u003cstrong data-start=\"1598\" data-end=\"1650\"\u003erunabouts, fishing boats, pontoons, and cruisers\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1656\" data-end=\"1713\"\u003eDesigned for \u003cstrong data-start=\"1669\" data-end=\"1697\"\u003efreshwater and saltwater\u003c\/strong\u003e applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1715\" data-end=\"1718\"\u003e\n\u003ch3 data-start=\"1720\" data-end=\"1762\"\u003e\u003cstrong data-start=\"1724\" data-end=\"1760\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1763\" data-end=\"2046\"\u003eA proper seal around your drain and fill screws is critical for protecting gears and bearings. The \u003cstrong data-start=\"1862\" data-end=\"1883\"\u003e19183K02 seal set\u003c\/strong\u003e ensures your lower unit stays tight and dry. Each gasket is molded to compress evenly without cracking or deforming, even after repeated tightening and removal.\u003c\/p\u003e\n\u003cp data-start=\"2048\" data-end=\"2305\"\u003eReplacing these seals with every gear lube change prevents leaks, keeps contaminants out, and extends the life of your oil and components. They’re small parts that make a big difference — quick to replace and worth every bit of peace of mind they provide.\u003c\/p\u003e\n\u003chr data-start=\"2307\" data-end=\"2310\"\u003e\n\u003ch3 data-start=\"2312\" data-end=\"2333\"\u003e\u003cstrong data-start=\"2316\" data-end=\"2331\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2334\" data-end=\"2685\"\u003eIt’s tempting to reuse old seals, but that’s how water finds its way into your gear lube. The \u003cstrong data-start=\"2428\" data-end=\"2448\"\u003eMercury 19183K02\u003c\/strong\u003e is a \u003cstrong data-start=\"2454\" data-end=\"2474\"\u003egenuine OEM part\u003c\/strong\u003e, made from materials that maintain shape, flexibility, and sealing strength under real marine conditions. Aftermarket washers may be too stiff or the wrong thickness, leading to seepage or uneven compression.\u003c\/p\u003e\n\u003cp data-start=\"2687\" data-end=\"2874\"\u003eWith OEM Mercury seals, you’re guaranteed a perfect fit and a proper seal every time. It’s a small investment that protects your lower unit — and helps avoid expensive repairs later on.\u003c\/p\u003e\n\u003chr data-start=\"2876\" data-end=\"2879\"\u003e\n\u003ch3 data-start=\"2881\" data-end=\"2894\"\u003e\u003cstrong data-start=\"2885\" data-end=\"2892\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2896\" data-end=\"3056\"\u003e\u003cstrong data-start=\"2896\" data-end=\"2936\"\u003eQ1: What engines do these seals fit?\u003c\/strong\u003e\u003cbr data-start=\"2936\" data-end=\"2939\"\u003eThey fit \u003cstrong data-start=\"2948\" data-end=\"2973\"\u003eall MerCruiser drives\u003c\/strong\u003e and most \u003cstrong data-start=\"2983\" data-end=\"3012\"\u003eMercury\/Mariner outboards\u003c\/strong\u003e, except Verado and Japanese-built models.\u003c\/p\u003e\n\u003cp data-start=\"3058\" data-end=\"3172\"\u003e\u003cstrong data-start=\"3058\" data-end=\"3094\"\u003eQ2: How many seals are included?\u003c\/strong\u003e\u003cbr data-start=\"3094\" data-end=\"3097\"\u003eEach pack includes \u003cstrong data-start=\"3116\" data-end=\"3136\"\u003efour OEM gaskets\u003c\/strong\u003e for 3\/8-16 drain and fill screws.\u003c\/p\u003e\n\u003cp data-start=\"3174\" data-end=\"3338\"\u003e\u003cstrong data-start=\"3174\" data-end=\"3235\"\u003eQ3: Should I replace these every time I change gear lube?\u003c\/strong\u003e\u003cbr data-start=\"3235\" data-end=\"3238\"\u003eYes — always replace the seals during each gear lube service to maintain a proper watertight seal.\u003c\/p\u003e\n\u003cp data-start=\"3340\" data-end=\"3472\"\u003e\u003cstrong data-start=\"3340\" data-end=\"3372\"\u003eQ4: What are they made from?\u003c\/strong\u003e\u003cbr data-start=\"3372\" data-end=\"3375\"\u003eThey’re built from a \u003cstrong data-start=\"3396\" data-end=\"3428\"\u003etough nylon and rubber blend\u003c\/strong\u003e, designed for compression and durability.\u003c\/p\u003e\n\u003cp data-start=\"3474\" data-end=\"3608\"\u003e\u003cstrong data-start=\"3474\" data-end=\"3519\"\u003eQ5: Can they handle saltwater conditions?\u003c\/strong\u003e\u003cbr data-start=\"3519\" data-end=\"3522\"\u003eYes. The materials resist corrosion, swelling, and deterioration from salt exposure.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626579288355,"sku":"12-19183K02","price":5.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/19183K02_Main.jpg?v=1760631147","url":"https:\/\/partsvu.com\/en-ca\/products\/seal-4-12-19183k02","provider":"PartsVu","version":"1.0","type":"link"}