{"product_id":"spi-040-over-bore-piston-kit-for-polaris-indy-600-xcr-xlt-triumph-66mm","title":"SPI .040 Over Bore Piston Kit for Polaris Indy 600 XCR, XLT, Triumph 66mm","description":"\u003ch2\u003eSPI .040 Over Bore Piston Kit for Polaris\u003c\/h2\u003e\u003cp\u003eThis SPI .040 over bore piston kit is a direct replacement for Polaris Indy 600, XCR, XLT, and Triumph 66mm engines, providing a 66mm piston with .040-inch oversize for rebuilding worn cylinders.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe SPI .040 over bore piston kit delivers a high-quality 66mm piston designed for Polaris snowmobile engines needing an overbore rebuild. This piston kit includes rings, wrist pin, and circlips for a complete top-end restoration on Polaris Indy 600, XCR, XLT, and Triumph models.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e.040-inch overbore increases displacement and restores compression\u003c\/li\u003e\n\u003cli\u003e66mm piston diameter matches OEM specifications for these Polaris engines\u003c\/li\u003e\n\u003cli\u003eIncludes premium piston rings for reliable sealing and long life\u003c\/li\u003e\n\u003cli\u003eWrist pin and circlips included for a complete installation\u003c\/li\u003e\n\u003cli\u003eHigh-strength aluminum alloy construction withstands high RPM operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Polaris Indy 600\u003c\/li\u003e\n\u003cli\u003efor Polaris XCR\u003c\/li\u003e\n\u003cli\u003efor Polaris XLT\u003c\/li\u003e\n\u003cli\u003efor Polaris Triumph 66mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding a worn top end on a Polaris snowmobile\u003c\/li\u003e\n\u003cli\u003eRestoring engine performance after cylinder wear or scoring\u003c\/li\u003e\n\u003cli\u003eTrail riding and recreational snowmobiling requiring reliable power\u003c\/li\u003e\n\u003cli\u003eCompetitive snowmobile racing where overbore is allowed\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\u003e.040 over (66mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e66mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Brand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolaris\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 Do I need to hone the cylinder before installing this piston kit? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, a cylinder hone is recommended to achieve proper ring seating and ensure the piston slides smoothly in the bore.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is the recommended ring gap for this .040 over piston? \u003cstrong\u003eA:\u003c\/strong\u003e Ring gap should be measured and set according to the manufacturer's specifications, typically between 0.010-0.020 inches for the top ring.\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":44890467991638,"sku":"SZ1F11361","price":127.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_bdba9406-bda2-4ba0-9d88-de742958ce04.jpg?v=1781139978","url":"https:\/\/www.solidspare.com\/products\/spi-040-over-bore-piston-kit-for-polaris-indy-600-xcr-xlt-triumph-66mm","provider":"Solid Spare","version":"1.0","type":"link"}