{"product_id":"spi-010-over-bore-top-end-repair-kit-for-polaris-550-f-c-1999-2021-73-25mm","title":"SPI .010 Over Bore Top End Repair Kit for Polaris 550 F\/C 1999-2021 73.25mm","description":"\u003ch2\u003eSPI .010 Over Bore Top End Repair Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis top end repair kit for Polaris 550 F\/C engines from 1999 to 2021 includes a .010 over bore piston set at 73.25mm, rings, gaskets, and wrist pin for a complete cylinder rebuild.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe SPI .010 Over Bore Top End Repair Kit is a comprehensive rebuild solution for Polaris 550 F\/C engines, restoring lost compression and power. Designed for 1999-2021 models with a 73.25mm bore, this kit includes all necessary components for a top-end overhaul.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined piston at .010 over stock bore for tight cylinder fit\u003c\/li\u003e\n\u003cli\u003eIncludes high-quality rings for optimal compression\u003c\/li\u003e\n\u003cli\u003eComplete gasket set ensures leak-free assembly\u003c\/li\u003e\n\u003cli\u003eWrist pin and circlips included for secure piston installation\u003c\/li\u003e\n\u003cli\u003eDesigned to withstand high RPM and heat in Polaris 550 engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Polaris 550 F\/C (1999-2021)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding top end of snowmobiles equipped with Polaris 550 fan-cooled engine\u003c\/li\u003e\n\u003cli\u003eRestoring power after wear or overheating damage\u003c\/li\u003e\n\u003cli\u003eUsed by DIY mechanics and professional rebuilders for complete cylinder refresh\u003c\/li\u003e\n\u003cli\u003eCommon upgrade for trail and utility snowmobiles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e73.25mm (.010 over)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris 550 F\/C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Years\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1999-2021\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this kit fit my 2005 Polaris 550? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the .010 over bore top end repair kit fits Polaris 550 F\/C engines from 1999 to 2021, but always confirm serial number for exact fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need to machine the cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this kit is designed for .010 over bore, so the cylinder must be bored and honed to 73.25mm before installation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44949847015510,"sku":"SZ1F15851","price":329.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_40f81651-c439-4738-9d6d-fe6678aa8e9d.jpg?v=1781400848","url":"https:\/\/www.solidspare.com\/products\/spi-010-over-bore-top-end-repair-kit-for-polaris-550-f-c-1999-2021-73-25mm","provider":"Solid Spare","version":"1.0","type":"link"}