{"product_id":"pulley-idler-807757t","title":"Mercury – Quicksilver Serpentine Belt Idler Pulley | For MerCruiser Engines | 807757T","description":"\u003cp data-start=\"0\" data-end=\"91\"\u003e\u003cstrong data-start=\"0\" data-end=\"89\"\u003eMercury – Quicksilver Serpentine Belt Idler Pulley | For MerCruiser Engines | 807757T\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"93\" data-end=\"96\"\u003e\n\u003ch3 data-start=\"98\" data-end=\"116\"\u003e\u003cstrong data-start=\"102\" data-end=\"114\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"117\" data-end=\"754\"\u003eSmooth, steady belt operation keeps your boat’s vital systems running right — and the \u003cstrong data-start=\"203\" data-end=\"254\"\u003eMercury Marine 807757T Quicksilver Idler Pulley\u003c\/strong\u003e helps make that happen. Designed for \u003cstrong data-start=\"292\" data-end=\"370\"\u003eMerCruiser 4.3L, 5.0L, 5.7L, 6.2L, and 8.2L sterndrive and inboard engines\u003c\/strong\u003e made by \u003cstrong data-start=\"379\" data-end=\"397\"\u003eGeneral Motors\u003c\/strong\u003e, this OEM pulley guides the serpentine belt while maintaining proper tension and alignment. Made from a durable thermal resin with an integrated bearing, it’s built to handle constant load, heat, and vibration in marine conditions. It’s a simple replacement that helps keep your belt drive system quiet, stable, and efficient — just the way it should be.\u003c\/p\u003e\n\u003chr data-start=\"756\" data-end=\"759\"\u003e\n\u003ch3 data-start=\"761\" data-end=\"783\"\u003e\u003cstrong data-start=\"765\" data-end=\"781\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"786\" data-end=\"867\"\u003e\n\u003cstrong data-start=\"786\" data-end=\"798\"\u003ePurpose:\u003c\/strong\u003e Maintains proper tension and alignment in serpentine belt systems.\u003c\/li\u003e\n\u003cli data-start=\"870\" data-end=\"974\"\u003e\n\u003cstrong data-start=\"870\" data-end=\"888\"\u003eCompatibility:\u003c\/strong\u003e Fits \u003cstrong data-start=\"894\" data-end=\"949\"\u003eMerCruiser 4.3L, 5.0L, 5.7L, 6.2L, and 8.2L engines\u003c\/strong\u003e by \u003cstrong data-start=\"953\" data-end=\"971\"\u003eGeneral Motors\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"977\" data-end=\"1086\"\u003e\n\u003cstrong data-start=\"977\" data-end=\"994\"\u003eConstruction:\u003c\/strong\u003e Made from \u003cstrong data-start=\"1005\" data-end=\"1036\"\u003ehigh-strength thermal resin\u003c\/strong\u003e for long service life and corrosion resistance.\u003c\/li\u003e\n\u003cli data-start=\"1089\" data-end=\"1176\"\u003e\n\u003cstrong data-start=\"1089\" data-end=\"1108\"\u003eBearing Design:\u003c\/strong\u003e Features a \u003cstrong data-start=\"1120\" data-end=\"1141\"\u003emolded-in bearing\u003c\/strong\u003e for smoother, quieter operation.\u003c\/li\u003e\n\u003cli data-start=\"1179\" data-end=\"1259\"\u003e\n\u003cstrong data-start=\"1179\" data-end=\"1194\"\u003eDimensions:\u003c\/strong\u003e 3-inch pulley with \u003cstrong data-start=\"1214\" data-end=\"1229\"\u003esix grooves\u003c\/strong\u003e for accurate belt tracking.\u003c\/li\u003e\n\u003cli data-start=\"1262\" data-end=\"1353\"\u003e\n\u003cstrong data-start=\"1262\" data-end=\"1282\"\u003eMaintenance Tip:\u003c\/strong\u003e Inspect pulley bushings and serpentine belt for wear when replacing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1355\" data-end=\"1358\"\u003e\n\u003ch3 data-start=\"1360\" data-end=\"1397\"\u003e\u003cstrong data-start=\"1364\" data-end=\"1395\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1400\" data-end=\"1488\"\u003e\n\u003cstrong data-start=\"1400\" data-end=\"1445\"\u003eMerCruiser sterndrive and inboard engines\u003c\/strong\u003e with serpentine belt systems, including:\u003c\/li\u003e\n\u003cli data-start=\"1493\" data-end=\"1499\"\u003e4.3L\u003c\/li\u003e\n\u003cli data-start=\"1504\" data-end=\"1510\"\u003e5.0L\u003c\/li\u003e\n\u003cli data-start=\"1515\" data-end=\"1521\"\u003e5.7L\u003c\/li\u003e\n\u003cli data-start=\"1526\" data-end=\"1532\"\u003e6.2L\u003c\/li\u003e\n\u003cli data-start=\"1537\" data-end=\"1543\"\u003e8.2L\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1545\" data-end=\"1548\"\u003e\n\u003ch3 data-start=\"1550\" data-end=\"1593\"\u003e\u003cstrong data-start=\"1554\" data-end=\"1591\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1594\" data-end=\"1843\"\u003eThe \u003cstrong data-start=\"1598\" data-end=\"1622\"\u003e807757T idler pulley\u003c\/strong\u003e plays an essential role in keeping your belt drive system quiet, efficient, and reliable. A worn or failing pulley can cause squealing, belt vibration, or premature belt wear — all signs that it’s time for replacement.\u003c\/p\u003e\n\u003cp data-start=\"1845\" data-end=\"2248\"\u003eThis Mercury OEM pulley is engineered from reinforced thermal resin, a lightweight yet durable material that resists corrosion and deformation. Its sealed bearing is built into the pulley for smooth rotation, reducing friction and extending belt life. Once installed, it keeps your serpentine belt running true and steady, ensuring consistent power to your alternator, water pump, and steering system.\u003c\/p\u003e\n\u003chr data-start=\"2250\" data-end=\"2253\"\u003e\n\u003ch3 data-start=\"2255\" data-end=\"2287\"\u003e\u003cstrong data-start=\"2259\" data-end=\"2285\"\u003eWhy Choose Mercury OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2288\" data-end=\"2537\"\u003eThe \u003cstrong data-start=\"2292\" data-end=\"2315\"\u003eQuicksilver 807757T\u003c\/strong\u003e is a \u003cstrong data-start=\"2321\" data-end=\"2357\"\u003egenuine Mercury Marine component\u003c\/strong\u003e, precision-engineered for your MerCruiser engine. Aftermarket pulleys may look similar but can use lower-grade plastics or loose-tolerance bearings that wear quickly under load.\u003c\/p\u003e\n\u003cp data-start=\"2539\" data-end=\"2790\"\u003eMercury OEM parts are tested in real marine environments to handle high torque, heat, and exposure to saltwater. The result is a pulley that runs smoothly, stays balanced, and lasts longer — the same one Mercury technicians trust on factory engines.\u003c\/p\u003e\n\u003chr data-start=\"2792\" data-end=\"2795\"\u003e\n\u003ch3 data-start=\"2797\" data-end=\"2810\"\u003e\u003cstrong data-start=\"2801\" data-end=\"2808\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2812\" data-end=\"2978\"\u003e\u003cstrong data-start=\"2812\" data-end=\"2854\"\u003eQ1: What engines does this pulley fit?\u003c\/strong\u003e\u003cbr data-start=\"2854\" data-end=\"2857\"\u003eIt’s designed for \u003cstrong data-start=\"2875\" data-end=\"2922\"\u003eMerCruiser 4.3L, 5.0L, 5.7L, 6.2L, and 8.2L\u003c\/strong\u003e sterndrive and inboard engines with serpentine belts.\u003c\/p\u003e\n\u003cp data-start=\"2980\" data-end=\"3111\"\u003e\u003cstrong data-start=\"2980\" data-end=\"3008\"\u003eQ2: What’s it made from?\u003c\/strong\u003e\u003cbr data-start=\"3008\" data-end=\"3011\"\u003eIt’s made of \u003cstrong data-start=\"3024\" data-end=\"3049\"\u003edurable thermal resin\u003c\/strong\u003e with a molded-in bearing for long life and quiet operation.\u003c\/p\u003e\n\u003cp data-start=\"3113\" data-end=\"3248\"\u003e\u003cstrong data-start=\"3113\" data-end=\"3148\"\u003eQ3: When should it be replaced?\u003c\/strong\u003e\u003cbr data-start=\"3148\" data-end=\"3151\"\u003eReplace it if you hear belt noise, see cracks, or notice the belt slipping or wearing unevenly.\u003c\/p\u003e\n\u003cp data-start=\"3250\" data-end=\"3360\"\u003e\u003cstrong data-start=\"3250\" data-end=\"3281\"\u003eQ4: Is installation simple?\u003c\/strong\u003e\u003cbr data-start=\"3281\" data-end=\"3284\"\u003eYes — it’s a \u003cstrong data-start=\"3297\" data-end=\"3315\"\u003edirect OEM fit\u003c\/strong\u003e that installs easily using standard tools.\u003c\/p\u003e\n\u003cp data-start=\"3362\" data-end=\"3545\"\u003e\u003cstrong data-start=\"3362\" data-end=\"3401\"\u003eQ5: Why OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3401\" data-end=\"3404\"\u003eBecause \u003cstrong data-start=\"3412\" data-end=\"3435\"\u003eMercury OEM pulleys\u003c\/strong\u003e are precision-balanced, corrosion-resistant, and designed to perform reliably in harsh marine environments.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936187306275,"sku":"807757T","price":51.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/807757T_Main.jpg?v=1760631211","url":"https:\/\/partsvu.com\/en-au\/products\/pulley-idler-807757t","provider":"PartsVu","version":"1.0","type":"link"}