{"product_id":"namura-size-c-standard-bore-66-37mm-piston-kit-for-yamaha-yz250-1999-2024-66-4mm","title":"Namura Size C Standard Bore 66.37mm Piston Kit for Yamaha YZ250 1999-2024 66.4mm","description":"\u003ch2\u003eSize C Standard Bore 66.37mm Piston Kit for Yamaha\u003c\/h2\u003e\u003cp\u003eThis Namura Size C standard bore piston kit is a direct replacement for Yamaha YZ250 models from 1999 to 2024, providing a 66.37mm bore diameter for reliable engine performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura Size C standard bore piston kit is designed for Yamaha YZ250 motorcycles, offering a precise 66.37mm bore diameter and 66.4mm oversize option for engine rebuilds. It includes the piston, rings, wrist pin, and circlips for a complete top-end overhaul, making it an essential component for restoring compression and power in Yamaha YZ250 engines.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-strength aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003eIncludes matched piston rings for optimal sealing\u003c\/li\u003e\n\u003cli\u003eWrist pin and circlips included for hassle-free installation\u003c\/li\u003e\n\u003cli\u003eDesigned to meet OEM specifications for Yamaha YZ250 engines\u003c\/li\u003e\n\u003cli\u003eSize C designation ensures correct fit for standard bore cylinders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha YZ250 (1999-2024)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCommonly used in motocross racing and off-road trail riding\u003c\/li\u003e\n\u003cli\u003eIdeal for engine rebuilds and top-end replacements\u003c\/li\u003e\n\u003cli\u003eSuitable for both recreational and competitive riding\u003c\/li\u003e\n\u003cli\u003eUsed for maintaining peak engine performance on Yamaha YZ250 bikes\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 Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e66.37mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize Option\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e66.4mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSize C\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 a Yamaha YZ250 from 2005? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it fits all Yamaha YZ250 models from 1999 through 2024, including 2005, as long as the cylinder bore is standard size (Size C).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include all necessary parts for installation? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit comes with the piston, rings, wrist pin, and circlips, so you have everything needed for a top-end rebuild.\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":44890494632022,"sku":"SZ1F11955","price":138.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_4c73a182-3ff3-4beb-9577-b7b4e9ee6863.jpg?v=1781140743","url":"https:\/\/www.solidspare.com\/products\/namura-size-c-standard-bore-66-37mm-piston-kit-for-yamaha-yz250-1999-2024-66-4mm","provider":"Solid Spare","version":"1.0","type":"link"}