{"product_id":"66-4mm-cylinder-piston-top-end-rebuild-kit-for-yamaha-yz250-yz-250-1999-2025-2","title":"66.4mm Cylinder Piston Top End Rebuild Kit for Yamaha YZ250 YZ 250 1999-2025","description":"\u003ch2\u003e66.4mm Cylinder Piston Top End Rebuild Kit for Yamaha YZ250 (1999-2025)\u003c\/h2\u003e\u003cp\u003eRevitalize your engine with this comprehensive 66.4mm Cylinder Piston Top End Rebuild Kit, specifically designed for the Yamaha YZ250. This high-quality aftermarket kit provides a reliable and cost-effective solution for restoring your bike's performance and compression. Engineered for durability and a precise fit, this non-OEM kit includes the essential components needed to get your machine back on the track or trail with confidence.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete aftermarket rebuild kit includes cylinder, piston, rings, wrist pin, circlips, and top-end gaskets.\u003c\/li\u003e\n\u003cli\u003ePrecision-machined 66.4mm bore designed to meet or exceed standard performance expectations.\u003c\/li\u003e\n\u003cli\u003eConstructed from high-grade materials to withstand the rigors of high-RPM two-stroke operation.\u003c\/li\u003e\n\u003cli\u003eDirect replacement design ensures a straightforward installation process for a seamless top-end refresh.\u003c\/li\u003e\n\u003cli\u003eExcellent value alternative to expensive original equipment manufacturer parts.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Models\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eYamaha YZ250 (1999-2025)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBore Size: 66.4mm\u003c\/li\u003e\n\u003cli\u003eProduct Type: Top End Rebuild Kit\u003c\/li\u003e\n\u003cli\u003eMaterial: Aluminum Alloy and Premium Gasket Materials\u003c\/li\u003e\n\u003cli\u003eCondition: Brand New Aftermarket\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs this an OEM part?\u003c\/strong\u003e\u003cbr\u003eNo, this is a premium aftermarket replacement part designed to provide high-quality performance as a direct alternative to the original equipment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I confirm compatibility?\u003c\/strong\u003e\u003cbr\u003eVerify that your motorcycle is a Yamaha YZ250 within the 1999 to 2025 model year range. For the best results, cross-reference your machine's serial number or consult your service manual to ensure this kit matches your specific engine configuration.\u003c\/p\u003e\u003chr\u003e\u003cem\u003eImportant: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.\u003c\/em\u003e","brand":"Northline Parts","offers":[{"title":"Default Title","offer_id":42821329715271,"sku":"ZZ2S00881","price":809.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0681\/7123\/5399\/files\/12_eea79653-58ba-40e0-8bf2-771152c5429d.jpg?v=1779798596","url":"https:\/\/www.northlineparts.com\/products\/66-4mm-cylinder-piston-top-end-rebuild-kit-for-yamaha-yz250-yz-250-1999-2025-2","provider":"Northline Parts","version":"1.0","type":"link"}