{"product_id":"namura-standard-bore-piston-gasket-kit-for-yamaha-big-bear-350-2x4-4x4-83mm","title":"Namura Standard Bore Piston \u0026 Gasket Kit for Yamaha Big Bear 350 2x4 \u0026 4x4 83mm","description":"\u003ch2\u003eNamura Standard Bore Piston \u0026amp; Gasket Kit for Yamaha Big Bear 350\u003c\/h2\u003e\u003cp\u003eThis aftermarket piston and gasket kit replaces the stock piston assembly for Yamaha Big Bear 350 2x4 and 4x4 ATVs, restoring compression and performance.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura Standard Bore Piston \u0026amp; Gasket Kit is a direct replacement for the original piston and gasket set on Yamaha Big Bear 350 models. This kit includes a piston, rings, wrist pin, circlips, and a full gasket set for a complete top-end rebuild. It is designed for riders who need a reliable, cost-effective solution to refresh their ATV's engine.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStandard 83mm bore matches OEM specifications for precise fit\u003c\/li\u003e\n\u003cli\u003eHigh-strength aluminum alloy piston reduces weight and improves durability\u003c\/li\u003e\n\u003cli\u003eRing set engineered for optimal compression and oil control\u003c\/li\u003e\n\u003cli\u003eComplete gasket set includes all necessary seals for a secure reassembly\u003c\/li\u003e\n\u003cli\u003ePrecision-machined wrist pin and circlips for trouble-free installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha Big Bear 350 2x4\u003c\/li\u003e\n\u003cli\u003efor Yamaha Big Bear 350 4x4\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrail riding and recreational ATV use\u003c\/li\u003e\n\u003cli\u003eFarm and ranch utility work\u003c\/li\u003e\n\u003cli\u003eHunting and outdoor exploration\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds for worn or damaged pistons\u003c\/li\u003e\n\u003cli\u003eGeneral maintenance and performance restoration\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\u003e83mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverbore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard (no overbore)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, rings, wrist pin, circlips, gasket set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha Big Bear 350 2x4 \u0026amp; 4x4\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 kit work with a Big Bear 350 that has been bored oversize? \u003cstrong\u003eA:\u003c\/strong\u003e No, this kit is for standard 83mm bore only; if your cylinder has been overbored, you need a corresponding overbore piston kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this gasket set include a base gasket and head gasket? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the gasket set contains all necessary engine gaskets including the base gasket, head gasket, and valve cover gasket where applicable.\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":44949743534166,"sku":"SZ1F13823","price":186.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_8507b25a-8db7-4bfe-bbee-c87adf5c85a5.jpg?v=1781397702","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-piston-gasket-kit-for-yamaha-big-bear-350-2x4-4x4-83mm","provider":"Solid Spare","version":"1.0","type":"link"}