{"product_id":"valve-assembly-18920a1","title":"Mercury – Quicksilver Gear Lube Reservoir Valve Assembly | Sterndrive Component | Marine-Grade Composite | 18920A1","description":"\u003cp data-end=\"120\" data-start=\"0\"\u003e\u003cstrong data-end=\"118\" data-start=\"0\"\u003eMercury – Quicksilver Gear Lube Reservoir Valve Assembly | Sterndrive Component | Marine-Grade Composite | 18920A1\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"125\" data-start=\"122\"\u003e\n\u003ch3 data-end=\"145\" data-start=\"127\"\u003e\u003cstrong data-end=\"143\" data-start=\"131\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"666\" data-start=\"146\"\u003eIf you’ve spent time maintaining a MerCruiser drive, you know how important steady lubrication is. The \u003cstrong data-end=\"322\" data-start=\"249\"\u003eMercury Marine 18920A1 Quicksilver Gear Lube Reservoir Valve Assembly\u003c\/strong\u003e keeps that balance right where it needs to be. Designed for \u003cstrong data-end=\"425\" data-start=\"383\"\u003eMerCruiser Alpha and Bravo sterndrives\u003c\/strong\u003e, this valve regulates gear lube movement between the reservoir and lower unit. It’s built to take on heat, vibration, and the constant pressure of real-world boating — quietly protecting your drive from wear every time you leave the dock.\u003c\/p\u003e\n\u003chr data-end=\"671\" data-start=\"668\"\u003e\n\u003ch3 data-end=\"695\" data-start=\"673\"\u003e\u003cstrong data-end=\"693\" data-start=\"677\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"807\" data-start=\"698\"\u003e\n\u003cstrong data-end=\"710\" data-start=\"698\"\u003ePurpose:\u003c\/strong\u003e Controls the flow of gear lube between the reservoir and the drive, keeping levels consistent.\u003c\/li\u003e\n\u003cli data-end=\"918\" data-start=\"810\"\u003e\n\u003cstrong data-end=\"823\" data-start=\"810\"\u003eMaterial:\u003c\/strong\u003e Made from \u003cstrong data-end=\"883\" data-start=\"834\"\u003edurable marine composite with brass internals\u003c\/strong\u003e to resist corrosion and fatigue.\u003c\/li\u003e\n\u003cli data-end=\"1017\" data-start=\"921\"\u003e\n\u003cstrong data-end=\"932\" data-start=\"921\"\u003eDesign:\u003c\/strong\u003e Engineered to \u003cstrong data-end=\"979\" data-start=\"947\"\u003eMercury Marine OEM standards\u003c\/strong\u003e for precise fit and seal integrity.\u003c\/li\u003e\n\u003cli data-end=\"1126\" data-start=\"1020\"\u003e\n\u003cstrong data-end=\"1038\" data-start=\"1020\"\u003eCompatibility:\u003c\/strong\u003e Fits \u003cstrong data-end=\"1081\" data-start=\"1044\"\u003eMerCruiser Alpha and Bravo drives\u003c\/strong\u003e with factory gear lube monitoring systems.\u003c\/li\u003e\n\u003cli data-end=\"1220\" data-start=\"1129\"\u003e\n\u003cstrong data-end=\"1146\" data-start=\"1129\"\u003eInstallation:\u003c\/strong\u003e Straightforward setup using basic tools — no special fittings required.\u003c\/li\u003e\n\u003cli data-end=\"1302\" data-start=\"1223\"\u003e\n\u003cstrong data-end=\"1239\" data-start=\"1223\"\u003eReliability:\u003c\/strong\u003e Prevents leaks, air intrusion, and pressure loss under load.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1307\" data-start=\"1304\"\u003e\n\u003ch3 data-end=\"1346\" data-start=\"1309\"\u003e\u003cstrong data-end=\"1344\" data-start=\"1313\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1455\" data-start=\"1349\"\u003e\n\u003cstrong data-end=\"1402\" data-start=\"1360\"\u003eMerCruiser Alpha and Bravo sterndrives\u003c\/strong\u003e, including Bravo I, II, III, X, XR, and XZ models.\u003c\/li\u003e\n\u003cli data-end=\"1559\" data-start=\"1458\"\u003eUsed on \u003cstrong data-end=\"1522\" data-start=\"1466\"\u003esport cruisers, fishing boats, and performance hulls\u003c\/strong\u003e with MerCruiser gear lube systems.\u003c\/li\u003e\n\u003cli data-end=\"1621\" data-start=\"1562\"\u003eBuilt for both \u003cstrong data-end=\"1605\" data-start=\"1577\"\u003efreshwater and saltwater\u003c\/strong\u003e environments.\u003c\/li\u003e\n\u003cli data-end=\"1695\" data-start=\"1624\"\u003eDesigned for boats equipped with \u003cstrong data-end=\"1692\" data-start=\"1657\"\u003egear lube monitoring reservoirs\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1700\" data-start=\"1697\"\u003e\n\u003ch3 data-end=\"1744\" data-start=\"1702\"\u003e\u003cstrong data-end=\"1742\" data-start=\"1706\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2103\" data-start=\"1745\"\u003eThe \u003cstrong data-end=\"1766\" data-start=\"1749\"\u003e18920A1 valve\u003c\/strong\u003e makes sure your drive stays properly lubricated, even when running hard or trimmed high. It keeps the flow of lube steady, so gears and bearings always have a protective film — reducing heat and friction inside the housing. The precise design keeps air from entering the system, preventing foaming or cavitation that can lead to wear.\u003c\/p\u003e\n\u003cp data-end=\"2347\" data-start=\"2105\"\u003eIts composite body resists corrosion and stays sealed tight, even after years of temperature swings and vibration. Once installed, it quietly does its job, ensuring your drive system gets the protection it needs without any extra attention.\u003c\/p\u003e\n\u003chr data-end=\"2352\" data-start=\"2349\"\u003e\n\u003ch3 data-end=\"2375\" data-start=\"2354\"\u003e\u003cstrong data-end=\"2373\" data-start=\"2358\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2690\" data-start=\"2376\"\u003eLubrication systems are one place where close enough isn’t good enough. The \u003cstrong data-end=\"2475\" data-start=\"2452\"\u003eQuicksilver 18920A1\u003c\/strong\u003e is a \u003cstrong data-end=\"2512\" data-start=\"2481\"\u003egenuine Mercury Marine part\u003c\/strong\u003e, designed to match your drive’s exact pressure and flow specs. Cheaper replacements might not seal properly or could restrict oil movement, leading to costly damage over time.\u003c\/p\u003e\n\u003cp data-end=\"2895\" data-start=\"2692\"\u003eOEM parts are built, tested, and proven in real marine conditions. That means every seal, thread, and flow channel works exactly as it should — so you can run longer, harder, and with total confidence.\u003c\/p\u003e\n\u003chr data-end=\"2900\" data-start=\"2897\"\u003e\n\u003ch3 data-end=\"2915\" data-start=\"2902\"\u003e\u003cstrong data-end=\"2913\" data-start=\"2906\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"3044\" data-start=\"2917\"\u003e\u003cstrong data-end=\"2957\" data-start=\"2917\"\u003eQ1: What drives does this valve fit?\u003c\/strong\u003e\u003cbr data-end=\"2960\" data-start=\"2957\"\u003eIt fits \u003cstrong data-end=\"3010\" data-start=\"2968\"\u003eMerCruiser Alpha and Bravo sterndrives\u003c\/strong\u003e with gear lube monitor systems.\u003c\/p\u003e\n\u003cp data-end=\"3183\" data-start=\"3046\"\u003e\u003cstrong data-end=\"3070\" data-start=\"3046\"\u003eQ2: What does it do?\u003c\/strong\u003e\u003cbr data-end=\"3073\" data-start=\"3070\"\u003eIt regulates oil flow between the reservoir and lower unit, maintaining proper gear lube pressure and level.\u003c\/p\u003e\n\u003cp data-end=\"3298\" data-start=\"3185\"\u003e\u003cstrong data-end=\"3215\" data-start=\"3185\"\u003eQ3: Is it easy to install?\u003c\/strong\u003e\u003cbr data-end=\"3218\" data-start=\"3215\"\u003eYes. Most boaters can install it with hand tools and a Mercury service manual.\u003c\/p\u003e\n\u003cp data-end=\"3436\" data-start=\"3300\"\u003e\u003cstrong data-end=\"3339\" data-start=\"3300\"\u003eQ4: Does it work for saltwater use?\u003c\/strong\u003e\u003cbr data-end=\"3342\" data-start=\"3339\"\u003eAbsolutely — it’s built with corrosion-resistant materials designed for marine environments.\u003c\/p\u003e\n\u003cp data-end=\"3596\" data-start=\"3438\"\u003e\u003cstrong data-end=\"3489\" data-start=\"3438\"\u003eQ5: Why use an OEM part instead of aftermarket?\u003c\/strong\u003e\u003cbr data-end=\"3492\" data-start=\"3489\"\u003eMercury OEM parts guarantee perfect fit and tested reliability — something generic parts rarely match.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46941156278563,"sku":"18920A1","price":105.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/18920A1_MAIN.jpg?v=1760631155","url":"https:\/\/partsvu.com\/en-ca\/products\/valve-assembly-18920a1","provider":"PartsVu","version":"1.0","type":"link"}