{"product_id":"polaris-sportsman-90-top-end-cylinder-kit","title":"Polaris Sportsman 90 Top End Cylinder Kit","description":"\u003c!-- CORE_FITMENT_TABS_START --\u003e\n\u003cstyle\u003e\n#core-product-tabs-10499008626990 .core-tab-radio {\n  position: absolute;\n  opacity: 0;\n  pointer-events: none;\n}\n#core-product-tabs-10499008626990 .core-tab-labels {\n  display: flex;\n  gap: 0;\n  margin: 0 0 16px 0;\n  border-bottom: 1px solid #d8d8d8;\n}\n#core-product-tabs-10499008626990 .core-tab-labels label {\n  display: inline-block;\n  padding: 10px 16px;\n  margin: 0 4px -1px 0;\n  border: 1px solid #d8d8d8;\n  background: #f7f7f7;\n  color: #222;\n  font-weight: 600;\n  cursor: pointer;\n  border-radius: 4px 4px 0 0;\n}\n#core-product-tabs-10499008626990 .core-tab-panel {\n  display: none;\n}\n#core-tab-desc-10499008626990:checked ~ .core-tab-labels label[for=\"core-tab-desc-10499008626990\"],\n#core-tab-fitment-10499008626990:checked ~ .core-tab-labels label[for=\"core-tab-fitment-10499008626990\"] {\n  background: #fff;\n  border-bottom-color: #fff;\n}\n#core-tab-desc-10499008626990:checked ~ .core-tab-panels .core-description-panel {\n  display: block;\n}\n#core-tab-fitment-10499008626990:checked ~ .core-tab-panels .core-fitment-panel {\n  display: block;\n}\n#core-product-tabs-10499008626990 .core-fitment-panel {\n  line-height: 1.5;\n}\n\u003c\/style\u003e\n\n\u003cdiv id=\"core-product-tabs-10499008626990\"\u003e\n  \u003cinput class=\"core-tab-radio\" type=\"radio\" name=\"core-product-tabs-10499008626990\" id=\"core-tab-desc-10499008626990\" checked\u003e\n  \u003cinput class=\"core-tab-radio\" type=\"radio\" name=\"core-product-tabs-10499008626990\" id=\"core-tab-fitment-10499008626990\"\u003e\n\n  \u003cdiv class=\"core-tab-labels\"\u003e\n    \u003clabel for=\"core-tab-desc-10499008626990\"\u003eDescription\u003c\/label\u003e\n    \u003clabel for=\"core-tab-fitment-10499008626990\"\u003eVehicle Fitment\u003c\/label\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"core-tab-panels\"\u003e\n    \u003cdiv class=\"core-tab-panel core-description-panel\"\u003e\n\u003c!-- CORE_DESCRIPTION_START --\u003e\n\u003ch2 style=\"font-size:22px;line-height:1.3;\"\u003eRevive Your Polaris Sportsman 90 with a Premium Top End Cylinder Kit\u003c\/h2\u003e\n\u003cp style=\"color:#333;\"\u003eBring your Polaris Sportsman 90 back to life with the 50 Caliber Racing Top End Rebuild Kit. Engineered to meet OEM specifications, this comprehensive kit includes everything needed to restore your engine's performance and ensure countless more years of trail-ready fun. Give your ride the top-end overhaul it deserves and get back to making memories.\u003c\/p\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;margin:24px 0;\"\u003e\n\u003cdiv style=\"background:#f9f9f9;border-top:3px solid #cc0000;padding:14px;text-align:center;border-radius:6px;flex:1 1 120px;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:bold;color:#111;\"\u003eStock Replacement\u003c\/div\u003e\n\u003cspan style=\"font-size:12px;color:#555;\"\u003eOEM Spec Quality\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;border-top:3px solid #cc0000;padding:14px;text-align:center;border-radius:6px;flex:1 1 120px;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:bold;color:#111;\"\u003eComplete Kit\u003c\/div\u003e\n\u003cspan style=\"font-size:12px;color:#555;\"\u003eEverything Included\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;border-top:3px solid #cc0000;padding:14px;text-align:center;border-radius:6px;flex:1 1 120px;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:bold;color:#111;\"\u003eKid's Joy\u003c\/div\u003e\n\u003cspan style=\"font-size:12px;color:#555;\"\u003eUnbeatable Smile Factor\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;border-top:3px solid #cc0000;padding:14px;text-align:center;border-radius:6px;flex:1 1 120px;\"\u003e\n\u003cdiv style=\"font-size:22px;font-weight:bold;color:#111;\"\u003eYears of Enjoyment\u003c\/div\u003e\n\u003cspan style=\"font-size:12px;color:#555;\"\u003eExtends Toy Life\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #eee;margin:24px 0;\"\u003e\n\u003ch3\u003eWhat’s in the Box (Based on selected options)\u003c\/h3\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;margin:16px 0;\"\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:14px;border-radius:6px;flex:1 1 200px;\"\u003e\n\u003cspan style=\"color:#cc0000;font-weight:bold;\"\u003e✓\u003c\/span\u003e Cylinder\u003cdiv style=\"color:#555;font-size:13px;\"\u003eHigh-quality replacement cylinder\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:14px;border-radius:6px;flex:1 1 200px;\"\u003e\n\u003cspan style=\"color:#cc0000;font-weight:bold;\"\u003e✓\u003c\/span\u003e Piston\u003cdiv style=\"color:#555;font-size:13px;\"\u003ePrecision-engineered piston\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:14px;border-radius:6px;flex:1 1 200px;\"\u003e\n\u003cspan style=\"color:#cc0000;font-weight:bold;\"\u003e✓\u003c\/span\u003e Piston Rings\u003cdiv style=\"color:#555;font-size:13px;\"\u003eSet of 2 high-performance rings\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:14px;border-radius:6px;flex:1 1 200px;\"\u003e\n\u003cspan style=\"color:#cc0000;font-weight:bold;\"\u003e✓\u003c\/span\u003e Gaskets\u003cdiv style=\"color:#555;font-size:13px;\"\u003eHead and base gaskets included\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:14px;border-radius:6px;flex:1 1 200px;\"\u003e\n\u003cspan style=\"color:#cc0000;font-weight:bold;\"\u003e✓\u003c\/span\u003e Spark Plug\u003cdiv style=\"color:#555;font-size:13px;\"\u003eBrand new spark plug\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:14px;border-radius:6px;flex:1 1 200px;\"\u003e\n\u003cspan style=\"color:#cc0000;font-weight:bold;\"\u003e✓\u003c\/span\u003e Fuel Filter\u003cdiv style=\"color:#555;font-size:13px;\"\u003eEssential fuel filtration\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:14px;border-radius:6px;flex:1 1 200px;\"\u003e\n\u003cspan style=\"color:#cc0000;font-weight:bold;\"\u003e✓\u003c\/span\u003e Air Filter\u003cdiv style=\"color:#555;font-size:13px;\"\u003eReplacement air filter included\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"r1-desc-media\" data-r1-media-index=\"1\" style=\"display:block;border-radius:8px;margin:24px 0;overflow:hidden;\"\u003e\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #eee;margin:24px 0;\"\u003e\n\u003ch3\u003eWhy Riders Upgrade\u003c\/h3\u003e\n\u003cdiv style=\"border:1px solid #eee;border-radius:8px;overflow:hidden;margin:16px 0;\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;padding:14px;\"\u003e\n\u003cspan style=\"font-size:20px;margin-right:12px;flex-shrink:0;\"\u003e🛠️\u003c\/span\u003e\u003cdiv style=\"color:#444;font-size:14px;\"\u003e\n\u003cstrong\u003eDirect OEM Replacement\u003c\/strong\u003e\u003cbr\u003eDesigned to meet original specifications for a perfect fit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;padding:14px;background:#fafafa;\"\u003e\n\u003cspan style=\"font-size:20px;margin-right:12px;flex-shrink:0;\"\u003e💪\u003c\/span\u003e\u003cdiv style=\"color:#444;font-size:14px;\"\u003e\n\u003cstrong\u003eHigh-Quality Components\u003c\/strong\u003e\u003cbr\u003eBuilt with durable materials to ensure longevity and performance.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;padding:14px;\"\u003e\n\u003cspan style=\"font-size:20px;margin-right:12px;flex-shrink:0;\"\u003e💰\u003c\/span\u003e\u003cdiv style=\"color:#444;font-size:14px;\"\u003e\n\u003cstrong\u003eCost-Effective Rebuild\u003c\/strong\u003e\u003cbr\u003eRestore your engine's power without the expense of a full replacement.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;padding:14px;background:#fafafa;\"\u003e\n\u003cspan style=\"font-size:20px;margin-right:12px;flex-shrink:0;\"\u003e🚀\u003c\/span\u003e\u003cdiv style=\"color:#444;font-size:14px;\"\u003e\n\u003cstrong\u003eRestored Performance\u003c\/strong\u003e\u003cbr\u003eGet back the lost power and responsiveness your ride once had.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"r1-desc-media\" data-r1-media-index=\"2\" style=\"display:block;border-radius:8px;margin:24px 0;overflow:hidden;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1.5px solid #e8e8e8;border-radius:12px;overflow:hidden;margin:24px 0;\"\u003e\n\u003cdiv style=\"background:#111;padding:14px 18px;display:flex;align-items:center;gap:10px;\"\u003e\n\u003cspan style=\"display:inline-block;width:10px;height:10px;background:#22c55e;border-radius:50%;flex-shrink:0;\"\u003e\u003c\/span\u003e\u003cspan style=\"color:white;font-weight:bold;font-size:15px;\"\u003eIn Stock \u0026amp; Ready To Ship\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding:18px;\"\u003e\n\u003cp style=\"margin:0 0 10px 0;color:#333;\"\u003e\u003cstrong\u003eProcessing:\u003c\/strong\u003e Packed with care before shipment\u003c\/p\u003e\n\u003cp style=\"margin:0 0 10px 0;color:#333;\"\u003e\u003cstrong\u003eTracking:\u003c\/strong\u003e Sent when shipped\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#333;\"\u003e\u003cstrong\u003eConfirmation:\u003c\/strong\u003e Sent after checkout\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"padding:10px 18px;background:#f9f9f9;border-top:1px solid #eee;\"\u003e\u003cem style=\"color:#555;font-size:12px;\"\u003eAlthough rare, some delays may occur. We’ll keep you updated every step of the way.\u003c\/em\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr style=\"border:none;border-top:1px solid #eee;margin:24px 0;\"\u003e\n\u003ch3\u003eSportsman 90 vs. Stock or Generic Options\u003c\/h3\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:16px;margin:16px 0;\"\u003e\n\u003cdiv style=\"background:#111;padding:18px;border-radius:8px;flex:1 1 200px;\"\u003e\n\u003cdiv style=\"color:#aaa;font-size:12px;font-weight:bold;margin-bottom:10px;\"\u003eSTOCK [PRODUCT TYPE]\u003c\/div\u003e\n\u003cdiv style=\"color:#ccc;font-size:14px;line-height:1.8;\"\u003e\n\u003cspan style=\"color:#888;\"\u003e✗\u003c\/span\u003e May not meet OEM specs\u003cbr\u003e\u003cspan style=\"color:#888;\"\u003e✗\u003c\/span\u003e Inconsistent quality\u003cbr\u003e\u003cspan style=\"color:#888;\"\u003e✗\u003c\/span\u003e May require additional parts\u003cbr\u003e\u003cspan style=\"color:#888;\"\u003e✗\u003c\/span\u003e Shorter lifespan\u003cbr\u003e\u003cspan style=\"color:#888;\"\u003e✗\u003c\/span\u003e Performance degradation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:18px;border-radius:8px;flex:1 1 200px;\"\u003e\n\u003cdiv style=\"color:#cc0000;font-size:12px;font-weight:bold;margin-bottom:10px;\"\u003e⚡ 50 Caliber Racing\u003c\/div\u003e\n\u003cdiv style=\"color:#111;font-size:14px;line-height:1.8;\"\u003e\n\u003cspan style=\"color:green;\"\u003e✓\u003c\/span\u003e \u003cstrong\u003eMeets OEM specs\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color:green;\"\u003e✓\u003c\/span\u003e \u003cstrong\u003eHigh-quality components\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color:green;\"\u003e✓\u003c\/span\u003e \u003cstrong\u003eComplete kit with gaskets\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color:green;\"\u003e✓\u003c\/span\u003e \u003cstrong\u003eRestores engine life\u003c\/strong\u003e\u003cbr\u003e\u003cspan style=\"color:green;\"\u003e✓\u003c\/span\u003e \u003cstrong\u003eReliable performance restoration\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"r1-desc-media\" data-r1-media-index=\"3\" style=\"flex:1 1 200px;border-radius:8px;background:#f9f9f9;height:260px;overflow:hidden;\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"r1-desc-media\" data-r1-media-index=\"4\" style=\"flex:1 1 200px;border-radius:8px;background:#f9f9f9;height:260px;overflow:hidden;\"\u003e\u003c\/div\u003e\n\u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:14px;border-left:3px solid #111;border-radius:4px;margin-bottom:8px;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003ePolaris Predator 90\u003c\/strong\u003e\u003cdiv style=\"color:#555;font-size:13px;\"\u003e2003-2006\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:14px;border-left:3px solid #111;border-radius:4px;margin-bottom:8px;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003ePolaris Scrambler 90\u003c\/strong\u003e\u003cdiv style=\"color:#555;font-size:13px;\"\u003e2001-2003\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:14px;border-left:3px solid #111;border-radius:4px;margin-bottom:8px;\"\u003e\n\u003cstrong style=\"color:#111;\"\u003ePolaris Sportsman 90\u003c\/strong\u003e\u003cdiv style=\"color:#555;font-size:13px;\"\u003e2001-2006\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"r1-desc-media\" data-r1-media-index=\"5\" style=\"flex:1 1 200px;border-radius:8px;background:#f9f9f9;height:260px;overflow:hidden;\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"r1-desc-media\" data-r1-media-index=\"6\" style=\"flex:1 1 200px;border-radius:8px;background:#f9f9f9;height:260px;overflow:hidden;\"\u003e\u003c\/div\u003e\n\u003ch3\u003eCommon Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this kit a direct replacement for the stock cylinder?\u003c\/strong\u003e\u003cspan style=\"color:#444;\"\u003eYes, this kit is designed to meet OEM specifications for a direct fit and function.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is included in this top end kit?\u003c\/strong\u003e\u003cspan style=\"color:#444;\"\u003eThe kit includes the cylinder, piston, piston rings, head gasket, base gasket, spark plug, fuel filter, and air filter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this kit restore lost power?\u003c\/strong\u003e\u003cspan style=\"color:#444;\"\u003eYes, this kit is designed to restore lost power and performance due to wear on the original top end components.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this kit difficult to install?\u003c\/strong\u003e\u003cspan style=\"color:#444;\"\u003eWhile engine work requires some mechanical skill, this kit is designed for a straightforward installation, similar to stock replacement parts.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"r1-desc-media\" data-r1-media-index=\"7\" style=\"display:block;border-radius:8px;margin:24px 0;overflow:hidden;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"background:#f9f9f9;padding:20px;border-radius:8px;margin:24px 0;\"\u003e\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;text-align:center;justify-content:center;\"\u003e\n\u003cdiv style=\"flex:1 1 80px;\"\u003e\n\u003cdiv style=\"font-size:22px;\"\u003e⭐\u003c\/div\u003e\n\u003cdiv style=\"font-weight:bold;color:#111;font-size:13px;\"\u003eCustomer Favorite\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 80px;\"\u003e\n\u003cdiv style=\"font-size:22px;\"\u003e🏆\u003c\/div\u003e\n\u003cdiv style=\"font-weight:bold;color:#111;font-size:13px;\"\u003eQuality Guaranteed\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 80px;\"\u003e\n\u003cdiv style=\"font-size:22px;\"\u003e🛠️\u003c\/div\u003e\n\u003cdiv style=\"font-weight:bold;color:#111;font-size:13px;\"\u003eExpert Support\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 80px;\"\u003e\n\u003cdiv style=\"font-size:22px;\"\u003e📦\u003c\/div\u003e\n\u003cdiv style=\"font-weight:bold;color:#111;font-size:13px;\"\u003eSecure Packaging\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003ch3\u003eWhat Riders Are Saying\u003c\/h3\u003e\n\u003cblockquote style=\"border-left:4px solid #cc0000;padding-left:15px;margin:20px 0;font-style:italic;color:#555;\"\u003eThis kit was a lifesaver! My son\"s Sportsman 90 was sitting for years, and this top end kit brought it right back to life. Everything fit perfectly and the quality is impressive for the price.\u003cbr\u003e\u003cstrong style=\"color:#111;\"\u003e— Mike D., Ohio\u003c\/strong\u003e\n\u003c\/blockquote\u003e\n\u003cblockquote style=\"border-left:4px solid #cc0000;padding-left:15px;margin:20px 0;font-style:italic;color:#555;\"\u003eEasy to install and works great. My daughter is thrilled to be riding again. Highly recommend this kit for anyone needing to rebuild their Polaris 90 top end.\u003cbr\u003e\u003cstrong style=\"color:#111;\"\u003e— Sarah K., Texas\u003c\/strong\u003e\n\u003c\/blockquote\u003e\n\u003cdiv style=\"background:#111;padding:25px;text-align:center;margin:30px 0;border-radius:10px;\"\u003e\n\u003ch2 style=\"color:white;margin:0 0 8px 0;font-size:20px;\"\u003eGet Your Polaris Sportsman 90 Running Like New\u003c\/h2\u003e\n\u003cp style=\"color:#bbb;margin:0;font-size:15px;\"\u003eDon't let a worn-out top end keep you off the trails. Restore performance and reliability with the 50 Caliber Racing Top End Cylinder Kit.\u003c\/p\u003e\n\u003cp style=\"color:#777;font-size:13px;margin:10px 0 0 0;\"\u003eOrder today and experience the difference quality parts make.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- CORE_DESCRIPTION_END --\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"core-tab-panel core-fitment-panel\"\u003e\n      \u003ch3\u003eVehicle Fitment\u003c\/h3\u003e\nPolaris Predator 90 — 2003-2006\u003cbr\u003e\nPolaris Scrambler 90 — 2001-2003\u003cbr\u003e\nPolaris Sportsman 90 — 2001-2006\u003cbr\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- CORE_FITMENT_TABS_END --\u003e","brand":"50 Caliber Racing","offers":[{"title":"Default Title","offer_id":51961823822126,"sku":"4449A3","price":89.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0265\/4076\/9342\/files\/1837.jpg?v=1776204358","url":"https:\/\/r1industriesoffroad.com\/es\/products\/polaris-sportsman-90-top-end-cylinder-kit","provider":"R1 Industries","version":"1.0","type":"link"}