{"product_id":"fitting-assembly-22-863786a1","title":"Mercury – Exhaust Manifold Drain T-Fitting | Cooling System Component | Marine-Grade Construction | 863786A1","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Exhaust Manifold Drain T-Fitting | Cooling System Component | Marine-Grade Construction | 863786A1\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Every boater knows the quiet comfort that comes from an engine that drains and dries exactly the way it should at the end of the day. When water leaves the system cleanly and predictably, you are not just protecting metal—you are protecting your peace of mind. That is what this Mercury exhaust manifold drain T-fitting brings back to your V6 or V8. It is one of those small but essential pieces that keeps your cooling system breathing easily, helping you avoid the headaches that come from trapped water, uneven draining, or corrosion that creeps in when you are not looking. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen this fitting is working the way it should, everything about your engine’s maintenance routine feels smoother, simpler, and more predictable.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePrimary component that directs water flow during manifold draining\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt from rugged, marine-safe materials designed for longevity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePrecision-molded for a consistent, secure connection within the drain system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned specifically for the water drain layout on select V6 and V8 engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEasy to install using standard tools\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngineered to meet Mercury Marine’s original equipment standards\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFor MerCruiser V6 and V8 engines: 305, 350, and 377 cubic inch displacement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits sterndrive and inboard systems equipped with factory water drain systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for cruisers, sport boats, bowriders, fishing boats, and multi-purpose family boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for boats stored in fluctuating climates where proper draining matters most\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e What seems like a simple fitting makes a surprisingly big difference in real-world use. When the drain system flows freely, you will notice how much smoother your end-of-day routine becomes—no guesswork, no lingering drips, no uneven draining between sides of the engine. Everything feels balanced and predictable. The fitting locks firmly into place with a tight, confident connection, giving you a sense of security every time you winterize, flush the system, or perform routine maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDurability is another major factor. This fitting stands up to constant vibration, heat cycles, and moisture without warping or loosening. You will not find it softening, cracking, or becoming brittle over the seasons the way some aftermarket fittings tend to do. It simply holds its shape and continues doing its job, keeping the cooling system flowing the way Mercury intended.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIn day-to-day boating, that means fewer surprises, fewer corrosion-related repairs, and a smoother-running engine that handles temperature changes more gracefully. It is one of those parts you do not fully appreciate until you replace a failing one—then everything suddenly feels right again.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e When it comes to water-contact components, genuine Mercury Marine parts make a difference you can feel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerfect fitment designed for the exact drain layout of your engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMaterials rated specifically for marine conditions—heat, vibration, and moisture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eLonger service life than many aftermarket alternatives\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned to install cleanly without modifying hoses or fittings\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eReliability that helps protect your engine from costly internal corrosion\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFor a part this important to winterization and daily maintenance, OEM is simply the safer, more practical choice.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does the Exhaust Manifold Drain T-Fitting 863786A1 fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits MerCruiser V6 and V8 engines with 305, 350, and 377 cubic inch displacement water drain systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What sets this part apart from aftermarket fittings?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Its durability, exact sizing, and marine-specific construction provide a tighter, more reliable seal.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How can I confirm it fits my engine?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check your owner’s manual, service manual, or verify that your engine uses the factory water drain system on these V6 or V8 models.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can this fitting be used in both saltwater and freshwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolutely—it is built to withstand both environments without degrading.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. Most boat owners can install it easily using common tools.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46941091070243,"sku":"22-863786A1","price":45.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/863786a1_main.jpg?v=1760631282","url":"https:\/\/partsvu.com\/en-au\/products\/fitting-assembly-22-863786a1","provider":"PartsVu","version":"1.0","type":"link"}