{"product_id":"namura-standard-bore-size-b-piston-gasket-kit-for-yamaha-yz450f-2018-2019-97mm","title":"Namura Standard Bore Size B Piston \u0026 Gasket Kit for Yamaha YZ450F 2018-2019 97mm","description":"\u003ch2\u003eStandard Bore Size B Piston \u0026amp; Gasket Kit for Yamaha YZ450F\u003c\/h2\u003e\u003cp\u003eThis piston and gasket kit provides a direct replacement for Yamaha YZ450F models from 2018 to 2019, featuring a 97mm standard bore size B and includes all necessary gaskets for a complete top-end rebuild.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis piston and gasket kit is designed to restore compression and performance in Yamaha YZ450F engines. It includes a precision-machined piston and a full set of gaskets, making it ideal for routine maintenance or rebuilds. The 97mm standard bore size B ensures a proper fit for 2018-2019 YZ450F models.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-strength aluminum alloy\u003c\/li\u003e\n\u003cli\u003eIncludes complete gasket set for head and base\u003c\/li\u003e\n\u003cli\u003eMatches factory weight and profile\u003c\/li\u003e\n\u003cli\u003eDesigned for standard bore size B (97mm)\u003c\/li\u003e\n\u003cli\u003ePre-lubricated piston pin included\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ450F (2018)\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ450F (2019)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross racing\u003c\/li\u003e\n\u003cli\u003eEnduro and trail riding\u003c\/li\u003e\n\u003cli\u003eOff-road competition\u003c\/li\u003e\n\u003cli\u003eRebuilding worn-out top ends\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\u003e97mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Years\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2018-2019\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, Rings, Piston Pin, Circlips, Gaskets\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 Is this a direct replacement for my stock piston? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this kit uses standard bore size B, matching the OEM specification for 2018-2019 YZ450F.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need to replace the gaskets separately? \u003cstrong\u003eA:\u003c\/strong\u003e No, the kit includes all necessary gaskets for installation, so you have everything in one package.\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":44949894266966,"sku":"SZ1F15989","price":351.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_a324f217-6847-4bf5-945b-8718bb20ddb0.jpg?v=1781401016","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-size-b-piston-gasket-kit-for-yamaha-yz450f-2018-2019-97mm","provider":"Solid Spare","version":"1.0","type":"link"}