{"product_id":"namura-020-over-bore-piston-kit-for-yamaha-660-raptor-grizzly-rhino-100-5mm","title":"Namura .020 Over Bore Piston Kit for Yamaha 660 Raptor, Grizzly \u0026 Rhino 100.5mm","description":"\u003ch2\u003eNamura .020 Over Bore Piston Kit for Yamaha\u003c\/h2\u003e\u003cp\u003eThis .020 over bore piston kit for Yamaha 660 Raptor, Grizzly, and Rhino models provides a 100.5mm bore size to restore engine performance during a rebuild. It includes a high-quality piston, rings, and wrist pin for a reliable top-end overhaul.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura .020 over bore piston kit is designed for Yamaha 660 Raptor, Grizzly, and Rhino ATVs and UTVs. This .020 over bore piston kit increases displacement slightly while refreshing worn cylinders. It is an ideal choice for rebuilds requiring a 100.5mm piston.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e100.5mm bore diameter for .020 over stock\u003c\/li\u003e\n\u003cli\u003eIncludes piston, rings, and wrist pin\u003c\/li\u003e\n\u003cli\u003eHigh-strength aluminum alloy construction\u003c\/li\u003e\n\u003cli\u003ePrecision-machined for accurate fitment\u003c\/li\u003e\n\u003cli\u003eDesigned for Yamaha 660 Raptor, Grizzly, and Rhino\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha 660 Raptor\u003c\/li\u003e\n\u003cli\u003efor Yamaha Grizzly 660\u003c\/li\u003e\n\u003cli\u003efor Yamaha Rhino 660\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eEngine rebuild for Yamaha 660 Raptor sport ATVs\u003c\/li\u003e\n\u003cli\u003eTop-end overhaul for Yamaha Grizzly utility ATVs\u003c\/li\u003e\n\u003cli\u003eRestoring compression in Yamaha Rhino UTVs\u003c\/li\u003e\n\u003cli\u003ePerformance rebuilds requiring a .020 over bore\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\u003e100.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.020 in (0.5mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha 660 Raptor, Grizzly, Rhino\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncludes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, rings, wrist pin\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 piston kit work with stock cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e This .020 over bore piston kit requires the cylinder to be bored to 100.5mm, so a stock cylinder must be machined to the proper oversize.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does it include circlips? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit comes with the wrist pin and circlips for secure installation.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and serial number can affect fitment, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":44949750186070,"sku":"SZ1F14027","price":193.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_30faeac8-3e98-4d20-95bd-a299e64ad484.jpg?v=1781397952","url":"https:\/\/www.solidspare.com\/products\/namura-020-over-bore-piston-kit-for-yamaha-660-raptor-grizzly-rhino-100-5mm","provider":"Solid Spare","version":"1.0","type":"link"}