{"product_id":"mercury-mercruiser-trim-cylinder-o-ring-kit-fits-r-mr-alpha-one-gen-ii-bravo-25-87400a2","title":"Mercury – Trim Cylinder O-Ring Kit | Hydraulic Trim System | Rubber Seals | 87400A2","description":"\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Trim Cylinder O-Ring Kit | Hydraulic Trim System | Rubber Seals | 87400A2\u003c\/span\u003e\u003c\/h3\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIf you’ve spent enough hours on the water, you can feel when your trim system stops behaving the way it should. The stern doesn’t lift as cleanly, the bow angle feels off, or you start seeing a bit of hydraulic film where it doesn’t belong. That’s usually your trim cylinder telling you it needs some attention. The Quicksilver 87400A2 O-Ring Kit is one of those small, unassuming fixes that can completely restore the feel of your boat. There’s a real confidence that comes from bringing a tired trim system back to life — that smooth rise, that quiet, steady movement, the sense that your boat is responding exactly the way you expect. I\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003et’s a simple kit, but it delivers a big dose of trust in your gear again.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eComplete 11-piece kit designed for MerCruiser trim cylinders\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDurable rubber seals engineered specifically for hydraulic marine use\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eReplaces worn or leaking o-rings to restore full trim function\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt to Mercury Marine OEM standards for perfect fit and lasting performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eI\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003encludes all sealing components required for a full trim cylinder reseal\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits MerCruiser R, MR, Alpha One, Alpha One Gen II, and Bravo trim cylinders\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWorks with both sterndrive and inboard\/outboard applications\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eSuitable for a wide range of boat types,\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e including center consoles, cruisers, bowriders, pontoons, and freshwater fishing boats\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA boat’s trim system is something you feel more than you think about. When the seals begin to fail, the signs show up slowly at first — a little hesitation, a slight delay, a drift in hydraulic pressure. Replacing the o-rings with this Quicksilver kit brings that crisp, predictable motion back. Your engine raises and lowers smoothly, the cylinders stay dry, and the whole system feels tighter and more controlled.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEach seal in the kit is engineered to handle hydraulic pressure, constant temperature changes, and the moisture-rich environment of marine operation. You’ll notice how much steadier your engine holds its position when the trim is engaged. There’s a satisfying “set” when you find the sweet spot on plane, and the cylinders operate quietly without weeping fluid or leaving residue along the rams.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt’s also a practical upgrade — one of the most cost-effective ways to extend the life of your trim cylinders and avoid expensive replacements. Because the parts are OEM-spec, everything seats naturally and installs without the frustration that often comes with off-brand seal kits. No odd tolerances, no mismatched thicknesses… just components that fit the way they’re supposed to.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eTrim systems are unforgiving when it comes to cheap sealing components. Aft\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eermarket o-rings might look similar, but they rarely carry the same resilience under pressure or exposure to marine fluids. With OEM Quicksilver parts, you get seals that are molded, sized, and tested specifically for MerCruiser cylinders. That means longer service intervals, fewer leaks, and a trim system that performs the way the designers intended. For\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e any boater who’d rather fix it once and fix it right, OEM is the clear call.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which Mercury engines or systems does this kit fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits MerCruiser R, MR, Alpha One, Alpha One Gen II, and Bravo trim cylinders.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes it better than aftermarket kits?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e OEM materials, correct sizing, and seals designed specifically for marine hydraulic loads.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I confirm this is the right kit for my cylinders?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Match your system to Mercury Marine part number 87400A2 or check your trim cylinder’s parts diagram.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can these seals be used in both freshwater and saltwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolutely — they’re designed for full marine exposure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation easy?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e If you’ve rebuilt hydraulic components before, it’s straightforward. Most boaters can handle it with basic tools and a clean workspace.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46932451197219,"sku":"25-87400A2","price":33.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/87400a2_main.jpg?v=1760631268","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-mercruiser-trim-cylinder-o-ring-kit-fits-r-mr-alpha-one-gen-ii-bravo-25-87400a2","provider":"PartsVu","version":"1.0","type":"link"}