{"product_id":"mercury-u-joint-bellows-fits-alpha-one-gen-ii-vazer-816431a1","title":"Mercury – Quicksilver 816431A1 U-Joint Bellows | MerCruiser Alpha One Gen II \u0026 Vazer Sterndrives | 816431A1","description":"\u003cp data-start=\"0\" data-end=\"113\"\u003e\u003cstrong data-start=\"0\" data-end=\"111\"\u003eMercury – Quicksilver 816431A1 U-Joint Bellows | MerCruiser Alpha One Gen II \u0026amp; Vazer Sterndrives | 816431A1\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"115\" data-end=\"118\"\u003e\n\u003ch3 data-start=\"120\" data-end=\"138\"\u003e\u003cstrong data-start=\"124\" data-end=\"136\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"139\" data-end=\"436\"\u003eThe \u003cstrong data-start=\"143\" data-end=\"183\"\u003eQuicksilver 816431A1 U-Joint Bellows\u003c\/strong\u003e keeps the heart of your drive system sealed tight. Designed for \u003cstrong data-start=\"248\" data-end=\"296\"\u003eMerCruiser Alpha One Gen II (1991 and newer)\u003c\/strong\u003e and \u003cstrong data-start=\"301\" data-end=\"322\"\u003eVazer sterndrives\u003c\/strong\u003e, this flexible bellows keeps water out of the bell housing and protects the U-joints from corrosion and damage.\u003c\/p\u003e\n\u003cp data-start=\"438\" data-end=\"721\"\u003eMade from durable, ribbed composite material, it flexes with your drive’s movement while maintaining a watertight seal. The kit includes clamps for both ends and installs easily with basic tools — a straightforward weekend project that keeps your boat running dry and trouble-free.\u003c\/p\u003e\n\u003chr data-start=\"723\" data-end=\"726\"\u003e\n\u003ch3 data-start=\"728\" data-end=\"750\"\u003e\u003cstrong data-start=\"732\" data-end=\"748\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"753\" data-end=\"858\"\u003e\n\u003cstrong data-start=\"753\" data-end=\"765\"\u003ePurpose:\u003c\/strong\u003e Prevents water from entering the bell housing and damaging the U-joints or gimbal bearing.\u003c\/li\u003e\n\u003cli data-start=\"861\" data-end=\"955\"\u003e\n\u003cstrong data-start=\"861\" data-end=\"873\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"878\" data-end=\"926\"\u003eMerCruiser Alpha One Gen II (1991 and newer)\u003c\/strong\u003e and \u003cstrong data-start=\"931\" data-end=\"952\"\u003eVazer sterndrives\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"958\" data-end=\"1059\"\u003e\n\u003cstrong data-start=\"958\" data-end=\"975\"\u003eConstruction:\u003c\/strong\u003e \u003cstrong data-start=\"976\" data-end=\"1006\"\u003eFlexible, ribbed composite\u003c\/strong\u003e material resists cracking, tearing, and UV damage.\u003c\/li\u003e\n\u003cli data-start=\"1062\" data-end=\"1168\"\u003e\n\u003cstrong data-start=\"1062\" data-end=\"1082\"\u003eEase of Install:\u003c\/strong\u003e Includes \u003cstrong data-start=\"1092\" data-end=\"1123\"\u003estainless-steel hose clamps\u003c\/strong\u003e for both ends; installs with common tools.\u003c\/li\u003e\n\u003cli data-start=\"1171\" data-end=\"1270\"\u003e\n\u003cstrong data-start=\"1171\" data-end=\"1187\"\u003eOEM Quality:\u003c\/strong\u003e Built to \u003cstrong data-start=\"1197\" data-end=\"1229\"\u003eMercury Marine factory specs\u003c\/strong\u003e for perfect fit and long service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1272\" data-end=\"1275\"\u003e\n\u003ch3 data-start=\"1277\" data-end=\"1314\"\u003e\u003cstrong data-start=\"1281\" data-end=\"1312\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1317\" data-end=\"1375\"\u003eMerCruiser Alpha One Gen II sterndrives (1991 and newer)\u003c\/li\u003e\n\u003cli data-start=\"1378\" data-end=\"1397\"\u003eVazer sterndrives\u003c\/li\u003e\n\u003cli data-start=\"1400\" data-end=\"1473\"\u003eCommon on cruisers, runabouts, and fishing boats using MerCruiser power\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1475\" data-end=\"1478\"\u003e\n\u003ch3 data-start=\"1480\" data-end=\"1522\"\u003e\u003cstrong data-start=\"1484\" data-end=\"1520\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1523\" data-end=\"1768\"\u003eA cracked or loose bellows can let water leak into the drive, leading to rusted U-joints or a ruined gimbal bearing. The \u003cstrong data-start=\"1644\" data-end=\"1656\"\u003e816431A1\u003c\/strong\u003e forms a tight, flexible seal that moves with the drive as you trim or steer, keeping water out and grease in.\u003c\/p\u003e\n\u003cp data-start=\"1770\" data-end=\"2050\"\u003eThe ribbed design allows full range of motion without collapsing or binding, and the composite rubber material holds its shape even after years of exposure to heat, salt, and vibration. Replacing this seal is quick, inexpensive insurance against costly lower-unit repairs later.\u003c\/p\u003e\n\u003chr data-start=\"2052\" data-end=\"2055\"\u003e\n\u003ch3 data-start=\"2057\" data-end=\"2078\"\u003e\u003cstrong data-start=\"2061\" data-end=\"2076\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2079\" data-end=\"2284\"\u003eMercury’s OEM bellows are molded from marine-grade compounds that outperform the thin rubber used in aftermarket copies. They fit correctly, clamp down evenly, and stay watertight through seasons of use.\u003c\/p\u003e\n\u003cp data-start=\"2286\" data-end=\"2474\"\u003eAn \u003cstrong data-start=\"2289\" data-end=\"2322\"\u003eauthentic Quicksilver bellows\u003c\/strong\u003e gives you the same reliability your sterndrive had when it left the factory — the right size, the right flexibility, and protection you can count on.\u003c\/p\u003e\n\u003chr data-start=\"2476\" data-end=\"2479\"\u003e\n\u003ch3 data-start=\"2481\" data-end=\"2494\"\u003e\u003cstrong data-start=\"2485\" data-end=\"2492\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2495\" data-end=\"2654\"\u003e\u003cstrong data-start=\"2495\" data-end=\"2502\"\u003eQ1:\u003c\/strong\u003e Which drives fit the Quicksilver 816431A1 bellows?\u003cbr data-start=\"2553\" data-end=\"2556\"\u003eA: It’s designed for \u003cstrong data-start=\"2577\" data-end=\"2625\"\u003eMerCruiser Alpha One Gen II (1991 and newer)\u003c\/strong\u003e and \u003cstrong data-start=\"2630\" data-end=\"2651\"\u003eVazer sterndrives\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2656\" data-end=\"2787\"\u003e\u003cstrong data-start=\"2656\" data-end=\"2663\"\u003eQ2:\u003c\/strong\u003e What’s included in the kit?\u003cbr data-start=\"2691\" data-end=\"2694\"\u003eA: The \u003cstrong data-start=\"2701\" data-end=\"2720\"\u003eU-joint bellows\u003c\/strong\u003e and \u003cstrong data-start=\"2725\" data-end=\"2760\"\u003etwo stainless-steel hose clamps\u003c\/strong\u003e for secure installation.\u003c\/p\u003e\n\u003cp data-start=\"2789\" data-end=\"2916\"\u003e\u003cstrong data-start=\"2789\" data-end=\"2796\"\u003eQ3:\u003c\/strong\u003e Can I install it myself?\u003cbr data-start=\"2821\" data-end=\"2824\"\u003eA: Yes. With basic tools and your service manual, it’s an easy do-it-yourself replacement.\u003c\/p\u003e\n\u003cp data-start=\"2918\" data-end=\"3072\"\u003e\u003cstrong data-start=\"2918\" data-end=\"2925\"\u003eQ4:\u003c\/strong\u003e How often should I replace it?\u003cbr data-start=\"2956\" data-end=\"2959\"\u003eA: Inspect the bellows every season and replace it if you find cracks, soft spots, or water inside the housing.\u003c\/p\u003e\n\u003cp data-start=\"3074\" data-end=\"3214\"\u003e\u003cstrong data-start=\"3074\" data-end=\"3081\"\u003eQ5:\u003c\/strong\u003e Why choose OEM?\u003cbr data-start=\"3097\" data-end=\"3100\"\u003eA: OEM bellows use stronger, longer-lasting material and fit perfectly, keeping your drive sealed and protected.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936154964259,"sku":"816431A1","price":114.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816431a1_main.jpg?v=1760631210","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-u-joint-bellows-fits-alpha-one-gen-ii-vazer-816431a1","provider":"PartsVu","version":"1.0","type":"link"}