{"product_id":"bushing-865193","title":"Quicksilver – Idler Pulley Support Bushing | MerCruiser V8 Series | Marine-Grade Aluminum | 865193","description":"\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQuicksilver – Idler Pulley Support Bushing | MerCruiser V8 Series | Marine-Grade Aluminum | 865193\u003c\/span\u003e\u003c\/h3\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 If you’ve spent enough time around a MerCruiser engine, you know the serpentine belt system has its own voice. When everything is aligned and spinning true, the motor sounds steady and sure of itself. But when an idler support bushing starts to wear, you hear the change — a faint rasp, a wobble in the belt, a reminder that something small is affecting something big. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThis Mercury Marine part brings that steady rhythm \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eback\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It’s one of those simple, quiet components that restores confidence the moment you install it.\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\"\u003eIdler pulley support bushing for select MerCruiser engines.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for 5.0L, 5.7L, and 6.2L General Motors–based platforms.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePrecision-machined marine-grade aluminum.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with idler pulleys 807757T, 864625T, and 8M6500024.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury Marine part number 865193.\u003c\/span\u003e\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 5.0L, 5.7L, and 6.2L sterndrive and inboard engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCommon on cruisers, sport boats, bowriders, runabouts, and family performance boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSuitable for engines using serpentine belt systems\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for both freshwater and saltwater boating\u003c\/span\u003e\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\"\u003eThis small aluminum bushing plays a surprisingly important role. Once installed, the idler pulley sits perfectly centered, eliminating the slight wandering or uneven belt tracking that can lead to noise, heat, and premature belt wear. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eYou’ll feel the difference right away — the belt moves smoother, tension stays consistent, and the overall engine tone returns to that tight, controlled hum boaters love.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe marine-grade aluminum offers strength without unnecessary bulk, resisting corrosion in ways ordinary automotive bushings simply can’t. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ehandles\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e heat cycles, moisture, and vibration without deforming or seizing, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ewhich gives\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e the pulley \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ethe\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e stable support \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eit needs through\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e wide \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eranges\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e of \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eRPM\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eReplacing this part also gives you the chance to inspect the serpentine belt itself. When both components are fresh and aligned, the engine feels more responsive, more predictable, and far less stressed. It’s a small maintenance job that pays off in quieter operation and smoother performance across every outing.\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\"\u003eSupport bushings see constant motion and pressure. A poorly machined aftermarket bushing can throw off belt alignment by just a fraction of a millimeter — but that’s all it takes to create squeal, slippage, or premature bearing wear.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA Mercury Marine part is engineered with the exact bore sizing and material hardness the engine requires. It fits the pulley correctly, rotates smoothly around its mounting point, and holds its shape season after season. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFor something this vital to engine harmony, OEM \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esimply\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e makes more sense.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It protects your belt, your pulleys, and ultimately, your entire accessory system.\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 engines does this bushing fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits MerCruiser 5.0L, 5.7L, and 6.2L engines using serpentine belts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: How is this better than aftermarket bushings?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e OEM machining, better aluminum blend, and perfect fitment for Mercury idler pulleys.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I confirm this is the \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eright\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e part?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check your pulley model. If you use 807757T, 864625T, or 8M6500024, this bushing matches.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can it be used in freshwater and saltwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes — the aluminum alloy is designed for both environments.\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 Very. Most boaters complete the job with basic tools during normal belt service.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":45626555433251,"sku":"865193","price":5.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/865193_Main.jpg?v=1760631272","url":"https:\/\/partsvu.com\/en-mx\/products\/bushing-865193","provider":"PartsVu","version":"1.0","type":"link"}