{"product_id":"namura-standard-bore-piston-kit-size-a-76-96mm-for-yamaha-wr250f-2015-2019-77mm","title":"Namura Standard Bore Piston Kit Size A 76.96mm for Yamaha WR250F 2015-2019 77mm","description":"\u003ch2\u003eStandard Bore Piston Kit Size A 76.96mm for Yamaha WR250F 2015-2019 77mm\u003c\/h2\u003e\u003cp\u003eThis Namura Standard Bore Piston Kit size A at 76.96mm is a direct replacement piston assembly designed for Yamaha WR250F models from 2015 through 2019, restoring compression and performance in a 77mm bore engine.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura Standard Bore Piston Kit size A 76.96mm is an aftermarket replacement piston designed for 2015-2019 Yamaha WR250F engines with a 77mm bore. This kit includes the piston, rings, wrist pin, and circlips, enabling a complete top-end rebuild. It restores lost compression and power while maintaining factory specifications for reliable operation.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eForged aluminum alloy construction for high strength and reduced weight\u003c\/li\u003e\n\u003cli\u003ePrecision-machined ring grooves ensure consistent ring seal\u003c\/li\u003e\n\u003cli\u003eIncludes a matched wrist pin and circlips for secure installation\u003c\/li\u003e\n\u003cli\u003eDesigned to meet OEM clearances for direct fitment\u003c\/li\u003e\n\u003cli\u003eCoated skirt reduces friction and wear during break-in\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha WR250F 2015\u003c\/li\u003e\n\u003cli\u003efor Yamaha WR250F 2016\u003c\/li\u003e\n\u003cli\u003efor Yamaha WR250F 2017\u003c\/li\u003e\n\u003cli\u003efor Yamaha WR250F 2018\u003c\/li\u003e\n\u003cli\u003efor Yamaha WR250F 2019\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end engine rebuilds on Yamaha WR250F off-road motorcycles\u003c\/li\u003e\n\u003cli\u003eRestoring compression in high-hour dirt bike engines\u003c\/li\u003e\n\u003cli\u003eReplacing worn pistons during routine maintenance intervals\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA 76.96mm (Size A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e76.96mm (Standard Size A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Bore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e77mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eForged Aluminum\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 WR250F 2015-2019\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 piston kit a direct OEM replacement? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the Namura Standard Bore Piston Kit is designed as a direct fit replacement for the stock piston in 2015-2019 Yamaha WR250F engines, using the same bore size and pin dimensions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What is included in the kit? \u003cstrong\u003eA:\u003c\/strong\u003e The kit includes one piston, piston rings, a wrist pin, and circlips; all components are required for a complete piston replacement.\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":44949780398166,"sku":"SZ1F14768","price":241.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_313c3541-ff2c-4d6f-98a4-d9230a0ee9e1.jpg?v=1781398869","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-piston-kit-size-a-76-96mm-for-yamaha-wr250f-2015-2019-77mm","provider":"Solid Spare","version":"1.0","type":"link"}