{"product_id":"mercury-mercruiser-aeu-bravo-one-gear-housing-seacore-with-dual-water-pickup-1-36-1-50-1-65-ratio-fits-bravo-i-i-x-drives-1656-8866j01","title":"Mercury – Complete Gearcase | SeaCore Bravo One \/ One X Series | Hard-Coat Anodized Alloy | 8866J01","description":"\u003cp data-start=\"0\" data-end=\"115\"\u003e\u003cstrong data-start=\"0\" data-end=\"115\"\u003eMercury – Complete Gearcase | SeaCore Bravo One \/ One X Series | Hard-Coat Anodized Alloy | 8866J01\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"119\" data-end=\"783\"\u003e\u003cstrong data-start=\"119\" data-end=\"131\"\u003eOverview\u003c\/strong\u003e\u003cbr data-start=\"131\" data-end=\"135\"\u003eAnyone who’s spent long days offshore knows how much trust you place in your gearcase. It’s the muscle under the boat—quiet, steady, and often forgotten until something goes wrong. When it’s right, you can feel it in every clean shift and every smooth rise onto plane. The \u003cstrong data-start=\"408\" data-end=\"464\"\u003eMercury Marine part number 8866J01 Complete Gearcase\u003c\/strong\u003e brings that confidence back to your MerCruiser SeaCore Bravo One or One X sterndrive, giving you the peace of mind that only a well-built, saltwater-ready drive can offer. Whether you’re carving through an inlet or cruising toward open horizon, this gearcase is designed to carry you there with strength you can trust.\u003c\/p\u003e\n\u003cp data-start=\"787\" data-end=\"805\"\u003e\u003cstrong data-start=\"787\" data-end=\"803\"\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"807\" data-end=\"1268\"\u003e\n\u003cli data-start=\"807\" data-end=\"901\"\u003e\n\u003cp data-start=\"809\" data-end=\"901\"\u003eComplete replacement gearcase built for MerCruiser SeaCore Bravo One and One X sterndrives\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"903\" data-end=\"1001\"\u003e\n\u003cp data-start=\"905\" data-end=\"1001\"\u003eSeaCore hard-coat anodized housing for exceptional corrosion resistance in harsh saltwater use\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1003\" data-end=\"1079\"\u003e\n\u003cp data-start=\"1005\" data-end=\"1079\"\u003eTri-Paint exterior system adds a durable, multi-layer protective barrier\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1081\" data-end=\"1140\"\u003e\n\u003cp data-start=\"1083\" data-end=\"1140\"\u003eXK360 low-copper alloy for additional corrosion defense\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1142\" data-end=\"1214\"\u003e\n\u003cp data-start=\"1144\" data-end=\"1214\"\u003eHeavy-duty forged gears and reinforced U-joint for long service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1216\" data-end=\"1268\"\u003e\n\u003cp data-start=\"1218\" data-end=\"1268\"\u003eCompatible with 1.36, 1.50, and 1.65 gear ratios\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1272\" data-end=\"1305\"\u003e\u003cstrong data-start=\"1272\" data-end=\"1303\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1307\" data-end=\"1614\"\u003e\n\u003cli data-start=\"1307\" data-end=\"1372\"\u003e\n\u003cp data-start=\"1309\" data-end=\"1372\"\u003eFits MerCruiser SeaCore Bravo One and Bravo One X sterndrives\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1374\" data-end=\"1447\"\u003e\n\u003cp data-start=\"1376\" data-end=\"1447\"\u003eBuilt for marine power systems using 1.36, 1.50, and 1.65 gear ratios\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1449\" data-end=\"1558\"\u003e\n\u003cp data-start=\"1451\" data-end=\"1558\"\u003eIdeal for performance boats, offshore fishing boats, sport cruisers, and high-torque recreational vessels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1560\" data-end=\"1614\"\u003e\n\u003cp data-start=\"1562\" data-end=\"1614\"\u003eWorks in both single-engine and twin-engine setups\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1618\" data-end=\"2102\"\u003e\u003cstrong data-start=\"1618\" data-end=\"1654\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003cbr data-start=\"1654\" data-end=\"1658\"\u003eA gearcase is one of those components where quality shows itself instantly. With the 8866J01 installed, shifts feel decisive and clean, free from hesitation or chatter. Under load, the forged gears deliver a strong, smooth transfer of power that gives the boat a steadier ride—especially when you’re accelerating hard or running through chop. You’ll feel how tight and secure everything is, as if the whole drive suddenly gained a new backbone.\u003c\/p\u003e\n\u003cp data-start=\"2106\" data-end=\"2650\"\u003eThen there’s the corrosion resistance. Saltwater can be ruthless, eating away at anything that’s not built to stand up to it. The SeaCore hard-coat anodizing, Tri-Paint protection, and low-copper alloy all work together to create a barrier that holds up season after season. It’s the kind of durability that lets you focus on the water instead of worrying about what’s happening beneath it. Installation is straightforward for a complete assembly like this, and once it’s bolted in, it’s built to remain steady and reliable with minimal upkeep.\u003c\/p\u003e\n\u003cp data-start=\"2654\" data-end=\"3301\"\u003e\u003cstrong data-start=\"2654\" data-end=\"2669\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003cbr data-start=\"2669\" data-end=\"2673\"\u003eWhen you’re replacing an entire gearcase, choosing genuine OEM isn’t just a preference—it’s a smart investment. A \u003cstrong data-start=\"2787\" data-end=\"2810\"\u003eMercury Marine part\u003c\/strong\u003e like this one is engineered to fit perfectly, run smoothly, and hold up under conditions the designers anticipated from day one. Aftermarket assemblies can look similar, but differences in materials, machining, and coating become obvious once the drive is in the water. With OEM, you get matched tolerances, proven durability, and the reliability that comes from decades of marine engineering. If you want your sterndrive to feel right the first time—and stay that way—OEM is the way to go.\u003c\/p\u003e\n\u003cp data-start=\"3305\" data-end=\"3477\"\u003e\u003cstrong data-start=\"3305\" data-end=\"3312\"\u003eFAQ\u003c\/strong\u003e\u003cbr data-start=\"3312\" data-end=\"3316\"\u003e\u003cstrong data-start=\"3316\" data-end=\"3377\"\u003eQ1: Which systems does the Complete Gearcase 8866J01 fit?\u003c\/strong\u003e\u003cbr data-start=\"3377\" data-end=\"3381\"\u003eIt fits MerCruiser SeaCore Bravo One and One X sterndrives with 1.36, 1.50, or 1.65 gear ratios.\u003c\/p\u003e\n\u003cp data-start=\"3481\" data-end=\"3728\"\u003e\u003cstrong data-start=\"3481\" data-end=\"3538\"\u003eQ2: What makes this better than aftermarket versions?\u003c\/strong\u003e\u003cbr data-start=\"3538\" data-end=\"3542\"\u003eThe corrosion protection and gear construction. Mercury’s hard-coat anodizing, Tri-Paint finish, and forged gears deliver long-term reliability aftermarket gearcases usually can’t match.\u003c\/p\u003e\n\u003cp data-start=\"3732\" data-end=\"3932\"\u003e\u003cstrong data-start=\"3732\" data-end=\"3787\"\u003eQ3: How do I confirm this is the right replacement?\u003c\/strong\u003e\u003cbr data-start=\"3787\" data-end=\"3791\"\u003eMatch your sterndrive model (Bravo One or One X) and verify your gear ratio. If those line up, this part number is typically the correct fit.\u003c\/p\u003e\n\u003cp data-start=\"3936\" data-end=\"4105\"\u003e\u003cstrong data-start=\"3936\" data-end=\"3987\"\u003eQ4: Can it be used in freshwater and saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3987\" data-end=\"3991\"\u003eAbsolutely. It’s built for the harshest saltwater environments, so freshwater use is well within its capabilities.\u003c\/p\u003e\n\u003cp data-start=\"4109\" data-end=\"4286\"\u003e\u003cstrong data-start=\"4109\" data-end=\"4149\"\u003eQ5: Is installation straightforward?\u003c\/strong\u003e\u003cbr data-start=\"4149\" data-end=\"4153\"\u003eFor experienced boat owners or technicians, yes. It installs like a standard Bravo One gearcase replacement with predictable fitment.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932452344099,"sku":"1656-8866J01","price":6372.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8866J01_Main.jpg?v=1760631268","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-mercruiser-aeu-bravo-one-gear-housing-seacore-with-dual-water-pickup-1-36-1-50-1-65-ratio-fits-bravo-i-i-x-drives-1656-8866j01","provider":"PartsVu","version":"1.0","type":"link"}